Best Mini Splits with Wi-Fi: 15 Spec-Based Picks
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Finding the best mini splits with wi fi requires comparing published specs to match your room size and electrical setup. We evaluated 15 models based on their listed efficiency ratings, voltage requirements, and smart control features. The Rellytech 18k BTU 21 SEER2 Mini Split leads this list because its 21 SEER2 rating and 230V compatibility offer high performance for larger spaces. These picks rely strictly on manufacturer data to help you decide which unit fits your home's power circuit and cooling needs.
Quick picks
The best fit for you
- You need high efficiency for larger rooms with 230V power Rellytech 18k BTU 21 SEER2 Mini Split It offers 21 SEER2 efficiency and 230V power for robust smart climate control.
- You want the most compact indoor unit on the list COSTWAY Blast Pro 18000 BTU 230V Its 7.68-inch depth is the smallest dimension among the listed Wi-Fi models.
- You need top-tier efficiency for small rooms under 400 sq ft DELLA Serena CloudAir 9800 BTU 115V It delivers 22 SEER2 efficiency with 115V power for energy-saving quiet performance.
- You need to cool three separate rooms with one outdoor unit ROVSUN 28000 BTU Tri-Zone Mini Split It is a tri-zone system with 28,000 BTU total capacity for multi-room control.
- You want quiet smart cooling for 115V circuits up to 750 sq ft Upstreman 12000 BTU Silver Mini Split It provides 12,000 BTU cooling with 20 SEER2 efficiency for standard residential outlets.
Our 15 picks
Rellytech 18k BTU 21 SEER2 Mini Split
Best for: larger rooms with 230V power and smart needs
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 18000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 208V/230V
- Coverage Area
- up to 1250sq.ft
- Heat Pump
- Heat Pump
This Rellytech mini split delivers 18,000 BTU of cooling and heating for spaces up to 750 square feet. It operates on 208V/230V power with a 21 SEER2 efficiency rating, making it 30% more efficient than standard 17 SEER2 models. Wi-Fi connectivity allows you to control the unit via smartphone or voice commands. The system includes a remote with a digital display and supports temperatures from -13°F to 122°F.
Pros
- 21 SEER2 efficiency rating for strong energy savings
- Wi-Fi and voice command smart control capabilities
- Operates effectively in extreme temperatures from -13°F to 122°F
- Includes remote control with digital display
Cons
- Requires 208V/230V power, limiting use on standard 115V circuits
- Indoor unit width of 39.6 inches is bulkier than compact 9000 BTU models
- Power cord not included in the installation kit
Good fit if
- You need a high-capacity 18,000 BTU unit for larger rooms
- You have a 230V electrical circuit available for installation
- You want smart app control and voice assistant compatibility
Skip if
- You only have standard 115V outlets available
- You are cooling a small space under 400 square feet
- You prefer a more compact indoor unit design
Verdict: Rellytech 18000 BTU 21 SEER2 Wi-Fi Mini Split is a high-efficiency choice for homeowners with 230V power who need robust climate control for larger rooms. It fits buyers who prioritize smart features and extreme temperature performance over compact size.
COSTWAY Blast Pro 18000 BTU 230V
Best for: large rooms with 230V power
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208/230V
- Coverage Area
- Up to 1,250 sq ft
- Heat Pump
- Heat Pump
This 18,000 BTU mini split offers 20 SEER2 efficiency and 208/230V power for spaces up to 1,250 sq.ft. It includes Wi-Fi control via app, plus Alexa and Google Assistant compatibility. The unit features 7 modes, 8 fan speeds, and 4D airflow. It operates quietly at 28 dB and includes self-clean functions. It suits large rooms needing strong heating and cooling with smart features.
Pros
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi, app, and voice control support
- Operates at 28 dB for quiet performance
- 4D airflow design for even distribution
- Works with Alexa and Google Assistant
Cons
- Requires 208/230V electrical connection
- Lacks 115V option for standard outlets
- No mention of integrated dehumidifier mode
Good fit if
- You have a 208/230V electrical supply
- You need cooling for areas up to 1,250 sq.ft
- You want voice control via smart speakers
Skip if
- You only have standard 115V outlets
- You need a unit under 12,000 BTU
- You require a 115V compatible model
Verdict: COSTWAY 18000 BTU Mini Split fits large spaces with 208/230V power, offering strong 18,000 BTU cooling and smart control features for efficient year-round comfort.
Mountman 9000 BTU 115V Mini Split
Best for: small rooms with 115V power
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 9000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 110/120V
- Coverage Area
- Up to 450 Sq.Ft
- Heat Pump
- Heat Pump
The Mountman 9000 BTU mini split provides cooling and heating for spaces up to 450 square feet. It runs on 115V power and achieves a 19 SEER2 efficiency rating. Built-in Wi-Fi and Alexa compatibility allow for remote control. You get four fan speeds and specialized modes like Sleep and ECO. This unit suits smaller rooms where standard 115V outlets are available.
Pros
- 19 SEER2 efficiency rating for energy savings
- Built-in Wi-Fi and Alexa compatibility
- Ultra-quiet Sleep Mode at 26dB
- 115V voltage for standard outlets
Cons
- Lower 19 SEER2 rating compared to 20+ SEER2 competitors
- 9000 BTU capacity limits use to smaller rooms
- Heavier 68.6-pound indoor unit
Good fit if
- You need Wi-Fi control on a 115V circuit
- You are cooling a room under 450 square feet
- You want ultra-quiet operation for a bedroom
Skip if
- You require a higher 20 SEER2 or above efficiency
- You need to cool a space larger than 450 square feet
- Your electrical system only supports 208/230V
Verdict: Mountman 9000 BTU 115V Mini Split fits small rooms with standard 115V outlets. It offers solid Wi-Fi control and quiet operation, though its efficiency and capacity trail larger competitors.
ROVSUN 9000 BTU 20 SEER2 Mini Split
Best for: small rooms needing smart 115V control
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 9000 BTU
- Efficiency Rating
- 20 SEER2, 19 SEER
- Voltage
- 115V
- Coverage Area
- Up to 400 sq.ft.
- Heat Pump
- Heat Pump
This ROVSUN unit offers 9000 BTU cooling and heating for spaces up to 400 square feet. It runs on 115V power and achieves a 20 SEER2 efficiency rating. You get full smart control via Wi-Fi, a dedicated app, and voice assistants like Alexa or Google Assistant. The indoor unit operates quietly at 28dB in mute mode. This system is designed for year-round comfort in small residential areas.
Pros
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi connectivity with app and voice control
- Quiet 28dB operation in mute mode
- 115V standard outlet compatibility
Cons
- 9000 BTU capacity limits coverage to 400 sq.ft.
- Heavier 70-pound indoor unit
- Requires extra power cord not included
Good fit if
- You need Wi-Fi control for a small room
- You want a 115V unit for easy installation
- You prioritize quiet operation for a bedroom
Skip if
- You need to cool a space larger than 400 sq.ft.
- You require 230V power for higher capacity
- You want a unit lighter than 70 pounds
Verdict: ROVSUN 9000 BTU Wi-Fi Mini Split fits small rooms where you need smart features and quiet operation. It is a practical option for 115V circuits but lacks the capacity for larger spaces.
YITAHOME 12000 BTU 115V Mini Split
Best for: Medium rooms needing smart control
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 20 SEER2
- Coverage Area
- 750 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa
This YITAHOME mini split offers 12,000 BTU cooling and heating with a 20 SEER2 efficiency rating. It connects via Wi-Fi and works with Alexa for smart control. The unit covers up to 750 square feet and runs at 115V. It includes features like 4D air circulation and a self-cleaning function. This model suits you if you need reliable climate control for a medium-sized room.
Pros
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi and Alexa smart connectivity
- Covers up to 750 square feet
- 4D air circulation with 50 ft max airflow
Cons
- 115V voltage limits compatibility with some electrical setups
- Noise level is under 41 dB, which is higher than some competitors
- No mention of inverter technology in specifications
Good fit if
- You need Wi-Fi control for a 750 sq ft space
- You require a 12,000 BTU unit for medium rooms
- You want Alexa integration for voice commands
Skip if
- You need a 208/230V unit for higher efficiency
- You require quieter operation under 40 dB
- You need a unit larger than 12,000 BTU
Verdict: YITAHOME 12,000 BTU 20 SEER2 provides solid smart control and efficiency for medium rooms. It fits you if you prioritize Wi-Fi features and moderate coverage.
TOSOT 9,000 BTU 230V Mini Split
Best for: small rooms with 230V power
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 9,000 BTU
- Efficiency Rating
- 20.5 SEER2
- Voltage
- 230V
- Heat Pump
- Heating System
- Smart Connectivity
- Wi-Fi, Alexa, GREE+ App
The TOSOT 9,000 BTU unit offers 20.5 SEER2 efficiency on 230V power. It includes Wi-Fi control via the GREE+ app and voice assistants. The system operates quietly at 22dB. It provides heating down to -13°F. This model suits small rooms needing smart control and quiet operation.
Pros
- 20.5 SEER2 efficiency rating
- Wi-Fi and Alexa compatibility
- Quiet 22dB operation
- Heats in -13°F conditions
Cons
- 230V voltage requires specific wiring
- 9,000 BTU capacity is small
- No 115V option listed for this model
Good fit if
- You need quiet operation for a bedroom
- You have 230V electrical access
- You want smart scheduling via app
Skip if
- You require 115V standard outlet
- You need to cool a large room
- You prefer 18,000 BTU capacity
Verdict: TOSOT 9,000 BTU 230V Wi-Fi Mini Split delivers efficient cooling for small spaces. It fits users who value quiet performance and smart home integration.
DELLA Motto 18k BTU 19 SEER2
Best for: larger spaces with 230V power access
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 18000 BTU/h
- Efficiency Rating
- 19 SEER2
- Voltage
- 208V~230V
- Coverage Area
- up to 1000 sq. ft.
- Heat Pump
- Heat pump
This 18,000 BTU mini split uses 230V power and reaches 19 SEER2 efficiency. It cools spaces up to 1,000 square feet and includes Wi-Fi and Alexa connectivity. The unit features a heat pump, 4D airflow, and a smart sensor that reads temperature from the remote. It operates quietly at 29 dBA and uses R-32 refrigerant for better environmental impact.
Pros
- 19 SEER2 efficiency rating for energy savings
- Wi-Fi and Alexa smart control compatibility
- Smart sensor adjusts temperature from the remote
- Ultra-quiet operation at 29 dBA
- 4D airflow for even distribution
Cons
- Lower 19 SEER2 efficiency compared to 20-21 SEER2 competitors
- Requires 230V electrical connection, limiting placement options
- Heavier and bulkier indoor unit at 37 inches wide
Good fit if
- You have a 230V circuit available for installation
- You need reliable Wi-Fi control via Alexa
- You want quiet operation for a bedroom or office
Skip if
- You only have standard 115V outlets
- You prioritize the highest possible SEER2 rating
- You need a compact unit for a small wall space
Verdict: DELLA Motto 18000 BTU 230V offers solid smart features and quiet performance for larger rooms, but its lower efficiency and 230V requirement make it less versatile than top-tier 20 SEER2 models for standard 115V setups.
Della Vario 24K BTU 21 SEER2
Best for: Large rooms with 230V power
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 24,000 BTU/h (2 Ton)
- Efficiency Rating
- 21 SEER2
- Voltage
- 208–230V
- Coverage Area
- up to 1500 Sq. Ft
- Heat Pump
- Heat pump
The DELLA Vario Series 24000 BTU mini split offers 21 SEER2 efficiency on 208–230V power. It covers up to 1500 square feet with Wi-Fi and Alexa connectivity. The unit includes a smart sensor that adjusts temperature based on the remote control location. It operates quietly at 36 dBA and functions in temperatures down to -4°F. This system requires professional installation.
Pros
- 21 SEER2 energy efficiency rating
- Wi-Fi and Alexa smart control
- Smart sensor adjusts to remote location
- Quiet 36 dBA operation
- Operates down to -4°F
Cons
- Requires professional installation
- Heavier indoor unit at 36.4 pounds
- Refrigerant adjustment needed for lines over 25 ft
Good fit if
- You need 24000 BTU cooling capacity
- You have a 208–230V electrical circuit
- You want temperature control via the remote
Skip if
- You only have a 115V outlet
- You plan to install it yourself
- You need coverage for more than 1500 sq ft
Verdict: DELLA Vario 24000 BTU 21 SEER2 fits homes needing high-capacity cooling with smart remote sensing. It suits users with 230V power who prefer professional setup.
DELLA Serena CloudAir 9800 BTU 115V
Best for: small rooms needing high efficiency
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 9800 BTU/h, 0.82 Ton
- Efficiency Rating
- 22 SEER2
- Voltage
- 115V
- Coverage Area
- Up to 400 Sq.Ft
- Heat Pump
- Heat Pump
The DELLA Serena CloudAir Series delivers 9,800 BTU of cooling and heating for spaces up to 400 square feet. It achieves a high 22 SEER2 efficiency rating on a standard 115V circuit. You get Wi-Fi control via the DELLA app or voice assistants like Alexa and Google Home. The unit includes PureClean technology and operates quietly at 24 dBA. This model suits those needing efficient, smart-controlled comfort in smaller rooms.
Pros
- 22 SEER2 efficiency rating for energy savings
- Wi-Fi control with Alexa and Google Home compatibility
- Quiet operation down to 24 dBA in mute mode
- Includes PureClean technology to reduce dust buildup
- Operates effectively in temperatures as low as 5°F
Cons
- Lower 9,800 BTU capacity compared to 12,000 BTU competitors
- Smaller 400 square foot coverage area limit
- Heavier indoor unit at 17.6 pounds
Good fit if
- You need Wi-Fi smart control for a small room
- You want high 22 SEER2 efficiency on a 115V circuit
- You prefer quiet operation with PureClean air filtration
Skip if
- You require cooling for spaces larger than 400 square feet
- You need a higher capacity than 9,800 BTU
- You prefer a lighter unit for wall mounting
Verdict: DELLA Serena CloudAir 9800 BTU offers top-tier efficiency and smart features for small spaces. It fits buyers who prioritize quiet, energy-saving performance in rooms under 400 square feet.
ROVSUN 28000 BTU Tri-Zone Mini Split
Best for: Cooling three separate rooms with one outdoor unit
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 28,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208-230V
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
This ROVSUN unit delivers 28,000 BTU of cooling across three separate 9,000 BTU zones. It operates on 208-230V power and achieves a 20 SEER2 efficiency rating. Wi-Fi connectivity allows for smart control of each indoor air handler. The system includes an inverter heat pump for heating down to -4°F. You get individual controllers for precise temperature management in multiple rooms simultaneously.
Pros
- Tri-zone design with three 9,000 BTU indoor units
- 20 SEER2 energy efficiency rating
- Wi-Fi smart control for individual room management
- Heat pump operation down to -4°F ambient temperature
Cons
- Requires 208-230V hardwired connection, not standard 115V
- Outdoor condenser weighs 179 pounds
- Three separate indoor units increase installation complexity
Good fit if
- You need to cool three separate rooms with one outdoor unit
- You have a 208-230V electrical circuit available
- You want individual temperature control for each zone
Skip if
- You only need to condition a single room
- Your electrical panel only supports 115V outlets
- You prefer a simpler two-zone or single-zone setup
Verdict: ROVSUN 28K BTU Tri Zone Mini Split is ideal for homeowners who need to manage three distinct spaces with one efficient outdoor unit. It fits well where 208-230V power is available and individual zone control is a priority.
YITAHOME 12000 BTU 115V Mini Split
Best for: 115V circuits up to 750 sq. ft.
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 115V
- Coverage Area
- up to 750 sq. ft.
- Heat Pump
- Heat Pump
This YITAHOME unit offers 12,000 BTU cooling and heating with a 20 SEER2 efficiency rating. It connects via Wi-Fi for mobile control and operates on standard 115V power. The system covers up to 750 square feet and includes four-way air circulation. You get quiet operation down to 25 dB in sleep mode. It suits you if you need smart control in a medium-sized room without requiring a 208-230V electrical circuit.
Pros
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi connectivity for mobile intelligent control
- Operates on standard 115V voltage
- Quiet operation at 25 dB in sleep mode
- 4D air circulation for even temperature distribution
Cons
- 115V voltage limits it compared to 208-230V models on this list
- 750 sq. ft. coverage is smaller than 18,000 BTU options
- Heavier build at 70.5 pounds for the indoor unit
Good fit if
- You need Wi-Fi control in a room up to 750 sq. ft.
- You have a standard 115V electrical outlet available
- You prioritize quiet operation for bedrooms or living areas
Skip if
- You require a 208-230V connection for higher efficiency
- You need to cool a space larger than 750 sq. ft.
- You want a lighter unit for easier mounting
Verdict: YITAHOME 12000 BTU 20 SEER2 Wi-Fi Mini Split fits you if you want smart control and efficient cooling in a medium room without needing heavy-duty 208-230V wiring. It is a solid pick for standard residential circuits.
Upstreman 12000 BTU Silver Mini Split
Best for: 115V circuits and 750 sq. ft. rooms
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 115V
- Coverage Area
- Up to 750 Sq.Ft
- Heat Pump
- Heat Pump
The Upstreman 12000 BTU mini split delivers cooling and heating for spaces up to 750 square feet. It operates on a standard 115V circuit and achieves a 20 SEER2 efficiency rating. Wi-Fi connectivity via the Smart Life app lets you adjust settings remotely. The unit runs quietly at 25 dB and includes 4D airflow. It features a sleek silver finish and comes with heavy-duty mounting brackets for installation.
Pros
- 20 SEER2 energy efficiency rating
- Wi-Fi control through Smart Life app
- Operates on standard 115V power
- Ultra-quiet operation at 25 dB
- Includes heavy-duty waterproof mounting brackets
Cons
- Limited to 12000 BTU capacity
- Requires 115V electrical circuit
- No mention of voice assistant integration
Good fit if
- You need a unit for a 750 sq. ft. room
- You have a standard 115V outlet available
- You want quiet operation for a bedroom
Skip if
- You require cooling for spaces larger than 750 sq. ft.
- You only have a 208V or 230V circuit
- You need a higher 18000 BTU capacity
Verdict: Upstreman 12000 BTU 115V Mini Split is a solid choice for homeowners with standard electrical outlets who need efficient cooling for a medium-sized room. It fits well in spaces where quiet performance and smart app control are priorities.
LITHZEN 12000 BTU 230V Mini Split
Best for: 230V circuits needing smart quiet cooling
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 18.1 SEER2
- Voltage
- 208/230V
- Coverage Area
- Up to 600 Sq. Ft
- Heat Pump
- Heat Pump
The LITHZEN 12000 BTU mini split provides cooling and heating for spaces up to 600 square feet. It operates on 208/230V power and achieves an 18.1 SEER2 efficiency rating. Wi-Fi connectivity allows control via smartphone, Alexa, or Google Assistant. The indoor unit runs quietly at 23 dB and includes self-cleaning features. This model suits users with existing 230V circuits who need reliable smart climate control.
Pros
- Wi-Fi control with Alexa and Google Assistant support
- Quiet operation at 23 dB noise level
- Self-cleaning function at 56℃/133℉
- Works with 208/230V electrical systems
Cons
- 18.1 SEER2 is lower than the 19-21 SEER2 ratings on this list
- Requires 208/230V power, not standard 115V
- Coverage area limited to 600 sq. ft.
Good fit if
- You have a 230V electrical circuit available
- You want voice control via Alexa or Google
- You need quiet operation for a bedroom
Skip if
- You only have standard 115V outlets
- You need the highest SEER2 rating available
- You are cooling a space larger than 600 sq. ft.
Verdict: LITHZEN 12000 BTU 230V Mini Split offers smart control and quiet performance for smaller rooms with 230V power. It fits users who prioritize voice assistant integration and energy efficiency over peak SEER2 numbers.
Albott 18,000 BTU 220V Mini Split
Best for: 220V rooms needing quiet smart cooling
- Smart Control
- Wi-Fi (what this guide is about)
- Cooling Capacity
- 18000BTU
- Voltage
- 220V
- Heat Pump
- Heat Pump
- Efficiency Rating
- 18 SEER2
- Dimensions
- 36.2 × 8.86 × 12.2 inches
The Albott 18000 BTU mini split delivers 18 SEER2 efficiency on a 220V circuit. It includes Wi-Fi control, five operating modes, and self-cleaning. Silent mode reaches 29dB. This unit suits you if you need a 220V connection and want reliable heating and cooling for medium-sized rooms. It balances smart features with standard ductless performance.
Pros
- 18 SEER2 energy efficiency rating
- Wi-Fi smart control enabled
- Ultra-quiet operation down to 29dB
- Self-cleaning function for hygiene
Cons
- Requires 220V electrical connection
- 18 SEER2 is lower than top competitors
- Only one cooling capacity listed
Good fit if
- You have a 220V outlet available
- You want Wi-Fi remote control
- You need quiet bedroom operation
Skip if
- You only have 115V power
- You want the highest SEER2 rating
- You need multiple zone options
Verdict: Albott 18k BTU 220V Mini Split fits users with 220V power who prioritize quiet operation and smart control over peak efficiency ratings.
GrowthWing 18k BTU 230V Mini Split
Best for: 1,250 sq. ft. spaces with 208/230V power
- Smart Control
- Wi-Fi, Alexa (what this guide is about)
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208/230V
- Coverage Area
- Up to 1250 Sq.Ft.
- Heat Pump
- Heat Pump
This GrowthWing AuraCore unit delivers 18,000 BTU of cooling and heating for spaces up to 1,250 square feet. It operates on 208/230V power with a 20 SEER2 efficiency rating. The system includes Wi-Fi connectivity for app and Alexa control. You get 4D airflow and I FEEL sensing for targeted comfort. It runs quietly at 32 dB and handles temperatures from 5°F to 122°F.
Pros
- 20 SEER2 efficiency rating for energy savings
- Wi-Fi and Alexa smart control support
- 4D multi-directional airflow distribution
- Quiet 32 dB operation level
- I FEEL sensing for personalized comfort
Cons
- Requires 208/230V dedicated circuit
- Larger 88-pound indoor unit weight
- No mention of Bluetooth connectivity
Good fit if
- You need Wi-Fi control for an 18,000 BTU system
- You have a 208/230V electrical supply
- You want high efficiency in a 1,250 sq. ft. space
Skip if
- You only have 115V outlets available
- You need a unit for spaces larger than 1,250 sq. ft.
- You require Bluetooth connectivity for local control
Verdict: GrowthWing AuraCore 18k BTU 20 SEER2 fits homes with 208/230V power that need smart control and high efficiency for medium-sized rooms. It offers strong performance for spaces up to 1,250 square feet.
Specifications side by side
| Spec | Rellytech 18k BTU 21 SEER2 Mini Split | COSTWAY Blast Pro 18000 BTU 230V | Mountman 9000 BTU 115V Mini Split | ROVSUN 9000 BTU 20 SEER2 Mini Split | YITAHOME 12000 BTU 115V Mini Split | TOSOT 9,000 BTU 230V Mini Split | DELLA Motto 18k BTU 19 SEER2 | Della Vario 24K BTU 21 SEER2 | DELLA Serena CloudAir 9800 BTU 115V | ROVSUN 28000 BTU Tri-Zone Mini Split | YITAHOME 12000 BTU 115V Mini Split | Upstreman 12000 BTU Silver Mini Split | LITHZEN 12000 BTU 230V Mini Split | Albott 18,000 BTU 220V Mini Split | GrowthWing 18k BTU 230V Mini Split |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cooling Capacity | 18000 BTU | 18,000 BTU | 9000 BTU | 9000 BTU | 12,000 BTU | 9,000 BTU | 18000 BTU/h | 24,000 BTU/h (2 Ton) | 9800 BTU/h, 0.82 Ton | 28,000 BTU | 12000 BTU | 12000 BTU | 12000 BTU | 18000BTU | 18,000 BTU |
| Efficiency Rating | 21 SEER2 | 20 SEER2 | 19 SEER2 | 20 SEER2, 19 SEER | 20 SEER2 | 20.5 SEER2 | 19 SEER2 | 21 SEER2 | 22 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 18.1 SEER2 | not specified | 20 SEER2 |
| Voltage | 208V/230V | 208/230V | 110/120V | 115V | not specified | 230V | 208V~230V | 208–230V | 115V | 208-230V | 115V | 115V | 208/230V | 220V | 208/230V |
| Coverage Area | up to 1250sq.ft | Up to 1,250 sq ft | Up to 450 Sq.Ft | Up to 400 sq.ft. | 750 sq ft | not specified | up to 1000 sq. ft. | up to 1500 Sq. Ft | Up to 400 Sq.Ft | not specified | up to 750 sq. ft. | Up to 750 Sq.Ft | Up to 600 Sq. Ft | not specified | Up to 1250 Sq.Ft. |
| Number of Zones | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 3 Zone | not specified | not specified | not specified | not specified | not specified |
| Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heating System | Heat pump | Heat pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | not specified | Wi-Fi, App, Alexa, Google Assistant | Built-in WiFi & Alexa compatible | Wi-Fi, App, Alexa, Google Assistant | WiFi, Alexa | Wi-Fi, Alexa, GREE+ App | Wifi, Alexa | Wifi, Alexa | WiFi, Alexa, Google Home, DELLA app | not specified | WiFi | WiFi, Smart Life app | WiFi, Alexa, Google Assistant | not specified | WiFi, Alexa, App |
| Smart Control | Wi-Fi | Wi-Fi, Alexa | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi, Alexa | Wi-Fi | Wi-Fi, Alexa |
| Dimensions | 12.4 × 39.6 × 9.5 inches | 7.68 × 35.8 × 12 inches | 8.23 × 32.3 × 11.9 inches | 7.99 × 31.9 × 11.5 inches | 7.9 × 31.2 × 11.5 inches | 14.7 × 23.2 × 31.1 inches | 8.82 × 37 × 12.4 inches | 10.3 × 46.9 × 14.2 inches | 7.9 × 30.2 × 11.8 inches | 16.6 × 38.5 × 31.6 inches | 10.4 × 34 × 13.1 inches | 39.3 × 28.1 × 26.8 inches | 7.7 × 32.1 × 11.3 inches | 36.2 × 8.86 × 12.2 inches | 8.11 × 35.8 × 11.6 inches |
| Weight | 95.1 pounds | 20.9 pounds | 68.6 pounds | 70 pounds | 22 pounds | not specified | not specified | 36.4 pounds | 17.6 pounds | 179 pounds | 70.5 pounds | 120 pounds | 17.6 pounds | not specified | 88 pounds |
| Size | 18000BTU,230V,21 SEER2-WiFi | not specified | not specified | 8.07"D x 31.92"W x 11.49"H | not specified | WiFi - 9,000 BTU 230V (20.5 SEER2) | 18,000 BTU - 230V - 19 SEER2 | 24,000 BTU - 230V / 21 SEER2 | not specified | 3 Zone 28000 BTU (9+9+9) | not specified | 12000BTU 115V | not specified | not specified | 18000 BTU 208/230V |
| Color | White | White | White | White | White | White | White | White | White | White | White | Silver | White | White | White |
| Model | CE0-1 | Blast Pro | MM-HWF9-115 | RV09T1/20-I/RV09T1/20-O | MAYIH4qu0k | GWH09AFCXB-D3DNA2B/I | 18K2VRH-19S-JA-I+O | TL-24K2VB-21S-I+O | 9K1VR-22S-MX-I+O_1 | 3 zone-28K/9K-9K-9K | MAYIHhC07e | UI12 | 11062-FPCY | not specified | HP12N |
Is Wi-Fi Control Worth the Upgrade?
Wi-Fi lets you adjust temperature and modes from your phone. You can schedule cooling before you arrive home. Some models also support voice assistants like Alexa. This adds convenience for remote monitoring. However, it requires a stable network connection. If your internet drops, local controls may still work. Consider whether you actually need to change settings from another room or if the standard remote is sufficient for your habits.
Worth it if
- You want to adjust the temperature remotely via an app
- You prefer using voice commands with Alexa
- You need to schedule cooling before arriving home
Skip it if
- You only use the included physical remote
- You have no reliable Wi-Fi signal in the room
- You prefer simple plug-and-play operation without setup
You might also want to see our best fans with wi fi guide for more cooling options.
How we selected these units
We identified Wi-Fi smart control by scanning Amazon listings for matching titles and feature lists. Only one size or variant from each product family appears here. All details come directly from published specifications and feature lists. We do not handle or test these units physically. You can trust the data as it appears on the listing pages.
The 15 products are ordered by availability first, then by overall rating weighted by rating count. We also factor in how many guide criteria each spec set meets. This ensures you see the most relevant, highly rated, and available options first. Prices and stock levels update live on the page and are not included in this text.
How to choose the right one
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Match voltage to your circuit
Check your home’s electrical panel before buying. Most units use standard 115V outlets, like the Rellytech 12000 BTU or YITAHOME 12000 BTU models. Others require 230V wiring, such as the COSTWAY Blast Pro or Della Vario. Using the wrong voltage prevents installation. Verify your circuit type first. If you have standard outlets, stick to 115V models. If you have heavy-duty wiring, you can choose higher-capacity 230V units for larger spaces.
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Prioritize SEER2 for efficiency
SEER2 measures cooling efficiency over a standard season. Higher numbers mean lower energy use. The Della Serena CloudAir offers 22 SEER2, the highest in this group. The Della Vario provides 21 SEER2 for larger rooms. Most top picks sit at 20 SEER2, like the Rellytech and YITAHOME models. Lower ratings, such as the Della Econo at 17 SEER2, use more power. If you run the unit often, choose a higher SEER2 rating to save energy.
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Check coverage area needs
Select capacity based on your room size. A 9000 BTU unit, like the ROVSUN or Mountman, fits small rooms. The Garvee 9000 BTU 230V model covers up to 750 square feet. The Della Econo 17,000 BTU handles up to 1,000 square feet. The Della Vario 24,000 BTU serves the largest spaces. Match the BTU output to your square footage. Undersizing causes poor cooling. Oversizing leads to short cycling. Check the spec sheet for the recommended coverage area.
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Verify smart control features
Wi-Fi allows remote temperature and mode adjustments from your phone. Most listed models include this feature. Some, like the Della Vario and Serena CloudAir, also support Alexa voice commands. This adds convenience for hands-free control. Ensure your home network is stable. Wi-Fi requires a consistent connection. Check the attributes list for smart control details. If you need voice assistant integration, look for explicit mentions. Otherwise, standard Wi-Fi app control is sufficient for most users.
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Consider indoor unit size
Check the physical dimensions before mounting. The Della Vario is wide at 46.9 inches. The Garvee 9000 BTU 115V model is tall at 21.4 inches. The YITAHOME 12000 BTU budget pick is compact at 31.2 inches wide. Ensure your wall space can accommodate the unit. Measure the available area. Compare the width, height, and length specs. A poor fit may require custom mounting brackets. Verify clearances for airflow and service access.
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Evaluate installation requirements
Some units require professional setup due to voltage or capacity. The 230V models, like the COSTWAY and Della Vario, often need licensed electricians. The 115V models, such as the Rellytech, may fit standard residential circuits. Check if the unit includes a drain pump or requires external drainage. Review the installation manual specs. Proper installation ensures warranty validity. Incorrect wiring voids coverage. Choose a model that matches your installer’s capabilities and local codes.
Frequently asked questions
Do all mini splits with Wi-Fi work with Alexa?
No, not all models support voice assistants. Only specific units like the TOSOT 9,000 BTU, DELLA Motto, and DELLA Vario explicitly list Alexa compatibility in their smart control attributes. Other models, such as the Rellytech 18k BTU and COSTWAY Blast Pro, only list Wi-Fi. You must check the published specifications to confirm if voice control is included.
Can I use Wi-Fi mini splits on standard 115V outlets?
Yes, many models are designed for standard 115V circuits. The Mountman 9000 BTU, ROVSUN 9000 BTU, and YITAHOME 12000 BTU units all operate on 115V power. These are suitable for smaller rooms and do not require heavy-duty wiring. However, higher-capacity units like the Rellytech 18k BTU and GrowthWing 18k BTU require 230V power.
What is the most efficient Wi-Fi mini split on this list?
The DELLA Serena CloudAir 9800 BTU is the most efficient model with a 22 SEER2 rating. It is designed for small rooms under 400 square feet and runs on 115V power. The Rellytech 18k BTU and DELLA Vario 24K BTU are the next most efficient at 21 SEER2, but they require 230V power and target larger spaces.
Which Wi-Fi mini split is best for a 1,250 square foot room?
The GrowthWing 18k BTU 20 SEER2 is the best fit for spaces up to 1,250 square feet. It requires 230V power and includes both Wi-Fi and Alexa support. The DELLA Motto 18k BTU is another option for larger areas, covering up to 1,000 square feet, but it has a lower 19 SEER2 efficiency rating.
Is there a tri-zone Wi-Fi mini split available?
Yes, the ROVSUN 28000 BTU Tri-Zone Mini Split allows you to cool three separate rooms with one outdoor unit. It has a 20 SEER2 rating and requires 230V power. Each zone can be controlled individually via Wi-Fi, making it ideal for homes with multiple distinct spaces that need separate temperature management.
Which Wi-Fi mini split has the smallest indoor unit?
The COSTWAY Blast Pro 18000 BTU has the most compact indoor unit, measuring just 7.68 inches in depth. This makes it the smallest dimension among the listed Wi-Fi models. It operates on 230V power and offers 20 SEER2 efficiency, fitting well in large rooms where space-saving design is a priority.
Do I need 230V power for a 9,000 BTU Wi-Fi mini split?
Not necessarily, as options exist for both voltage types. The Mountman 9000 BTU and ROVSUN 9000 BTU units run on 115V power, suitable for standard outlets. In contrast, the TOSOT 9,000 BTU model requires 230V power. You should select the voltage that matches your home’s electrical circuit to ensure proper installation and operation.