Best Smart Controllers for Mini-Split ACs in 2025 | Klima vs Others

Mini-split and ductless A/C systems have exploded in popularity thanks to their energy efficiency, zoned comfort, and ease of installation. 

Globally, the ductless mini-splits market was valued at $16.55 billion in 2024 and is projected to grow to $33.63 billion by 2033, at a healthy 8.2% CAGR.

But while these systems are efficient, their traditional remote controls are far from smart. They lack features like geofencing, automation, scheduling, and energy reporting — capabilities modern homeowners expect.

That’s where smart A/C controllers come in. Devices like Sensibo, Mysa, Cielo, and Klima smart thermostat turn ordinary ductless units into intelligent, connected systems. Each smart thermostat for mini-split’s offers remote control, scheduling, and smart home integrations, but the details matter — especially for compatibility and ease of setup.

In this guide, we’ll compare the best smart controllers for mini-splits in 2025, highlighting how the Klima Smart Thermostat stands out with universal compatibility and easy setup.

Why Mini-Split Systems Need Specialized Controllers

Traditional smart thermostats like Nest or Ecobee use low-voltage wiring and are built for central HVAC systems. Mini-splits, on the other hand, rely on infrared (IR) signals or proprietary control protocols, which means they can’t be wired into a typical smart thermostat.

Smart controllers bridge that gap by emulating your mini-split’s remote control. They communicate via IR signals while connecting to Wi-Fi, enabling full remote access, scheduling, automation, and integration with voice assistants.

A specialized thermostat like the Klima Smart Thermostat ensures you can upgrade your ductless A/C system without rewiring or professional installation — and gain precise, app-based control.

What Is Sensibo?

Sensibo is one of the earliest and most popular names in the smart A/C controller space. Its two main products — Sensibo Sky and Sensibo Air — transform any air conditioner or heat pump with an IR remote into a connected smart device.

Using the Sensibo app, you can:

• Control your mini-split from anywhere
• Set custom schedules
• Enable geofencing to turn the unit on/off based on your phone’s location
• Integrate with Alexa, Google Assistant, and Apple HomeKit (depending on the model).

Sensibo is overall a great controller, however, it is made from plastic lowering the premium aesthetic feel as well as the durability of the product. 

Pros

• Easy setup 

• Wide IR compatibility

Cons

• Some features require a paid plan
• No physical controls on the device

What Is Mysa?

The Mysa Smart Thermostat for Mini-Splits is a thermostat-style controller that works with mini-split heat pumps.

It integrates with Google Assistant, Alexa, and Apple HomeKit, offering features like:

• Remote temperature control
• Energy monitoring
• Custom scheduling

Mysa’s clean design and reliable operation make it a favorite among users, however, it has limited physical controls leaving homeowners to depend on the app for main functionality. Additionally, the Mysa Smart Thermostat is made from plastic materials making it less durable.

Pros

• Excellent smart home integration

Cons

• Limited physical controls

• Made from plastic material, making it less durable

What Is Cielo?

Cielo offers a family of smart controllers (like the Cielo Breez Plus and Cielo Breez Max) that work with mini-splits, portable A/Cs, and window units.

Cielo connects to your home Wi-Fi and controls your air conditioner using IR signals — similar to Sensibo. Its Cielo Home app lets users:

• Set schedules and zones
• Monitor usage
• Use geofencing and voice control
• Integrate with smart home devices like Alexa, Google Home, SmartThings, and Siri

Cielo, like Sensibo and Mysa, is also made of plastic with only some models offering a mirror finish for the touchscreen, lowering its overall premium aesthetic and durability. 

Pros

• Reliable performance
• Broad compatibility

Cons

• Design feels basic
• Some models lack full physical control

• App UI is functional but not modern

What Is a Klima Smart Thermostat?

The Klima Smart Thermostat is the newest generation of smart A/C controllers, purpose-built for ductless A/C’s like mini-split, window, and portable A/C systems.

What makes the Klima Smart Thermostat stand out is its universal IR compatibility and ultra-fast setup. Installation takes under three minutes — no wiring, adapters, or tools needed. Simply connect Klima to Wi-Fi, pair it with your remote, and start controlling your system via the Klima App.

Furthermore, the Klima Smart Thermostat is built using premium, low-carbon materials, featuring an aluminum exterior and mirrored glass. This not only ensures durability and longevity but also enhances the aesthetic appeal of your living space. 

Key Highlights

• Universal Compatibility: Works with virtually any brand (Mitsubishi, Daikin, Fujitsu, LG, Toshiba, Panasonic, etc.)
• IR Remote Emulation: Precisely replicates your A/C’s native commands
•  Energy Intelligence: Real-time monitoring and cost forecasts
• Built-in Sensors: Tracks temperature, humidity, and usage
• Smart Integrations: Alexa, Google Home, Google Assistant and HomeKit compatibility.
•  No Subscription Fees: all features included without a subscription fee.

• Premium Build: The Klima Smart Thermostat combines premium build quality — glass and aluminum aesthetic — with a modern app experience designed around sustainability, comfort, and simplicity.

Pros

• Easiest installation (plug & play)
• Energy-focused insights and forecasting
• Sleek design with on-device controls
• No subscription costs ever

Cons

• Only compatible with with ductless ACs that have a remote with a display 

Comparison Chart: The Best Smart Controllers for Mini-Split ACs (2025)

Conclusion

The Klima Smart Thermostat stands out in 2025 as the easiest set up, user-friendly, and complete solution — combining premium design, energy intelligence, wide range ductless compatibility and true plug-and-play simplicity.

If you want a controller that’s purpose-built for ductless systems, requires no subscription, and works with virtually any ductless A/C brand, Klima Smart Thermostat is the smartest choice for your mini-split in 2025.