This smart thermostat could be the key to managing your air conditioning this summer
Summer is coming, and this smart thermostat could help keep you cool


As we enter the summer months, the weather is finally warming up which means everyone will be looking at ways to cool down – there’s just no winning sometimes, is there?! Even more so, fans and air conditioners can ramp up costs if you run them for ‘too long’ – but this climate tech start-up has come up with a solution.
Smart home brand, Boldr is focused on developing products that help users save energy while providing customisable heating and cooling to your home. Currently, the brand has two products on offer, the Kelvin, a smart infrared heater and the Klima, a smart thermostat – although it doesn’t work in the way you might think.
When you think of the best smart thermostats, you probably think of a device that connects to your boilers or radiators, and allows you remote access to your heating. While this is the case, many people overlook that smart thermostats can also be used to cool down your home, and the Boldr Klima takes this one step further.
Instead of connecting to your heating system, the Boldr Klima is a smart controller and thermostat that connects to your air conditioning unit. Compatible with mini split, window and room AC units, Klima allows you to better control the temperature in your home with the Boldr app.
What’s most impressive about the Klima is that it works with any brand of air conditioner that you own, including models from LG, Samsung, Haier, Daiken and more. It also works with any ‘age’ air conditioner, so if you have an AC unit that’s been around since the dawn of time, chances are Klima can still work with it.
Boldr claims that the Klima is easy to install and can be set up in less than three minutes. Once connected to the Boldr app, you can unlock many smart features so you can turn your air conditioner into a smart device.
The Boldr app allows you to customise your home’s climate with automations and schedules. Similar to a traditional thermostat, the Klima offers smart scheduling where you can customise different temperatures in each room and at different times of the day – and as the app is on your phone, you can do this from wherever you are.
Sign up to the T3 newsletter for smarter living straight to your inbox
Get all the latest news, reviews, deals and buying guides on gorgeous tech, home and active products from the T3 experts
Alongside cooling, the Klima is designed to help keep your energy costs and usage down. Its Comfort Zone feature is particularly impressive, as it helps avoid overcooling or overheating in a room by measuring its temperature at the thermostat’s level. This allows for more accurate cooling and doesn’t overwork your AC unit so you’re not paying ridiculously priced bills.
Klima also has a geo sensing feature where it automatically switches off your air conditioner when everyone has left the house to save costs. It can also pick up where it left off when someone enters the home. All this cost and energy monitoring can be viewed in the Boldr app so you can see what you’re using and spending.
The Boldr Klima is one of the first smart thermostats I’ve seen to connect to your air conditioner, and now that summer is on the horizon, it’s definitely a gadget that’s worth a place in your home. It could be the answer to all your overheating problems if a UK heatwave is anything to come by.
The Klima is available to buy for £125 / $165 at Boldr and Amazon.

Beth is Home Editor for T3, looking after style, living and wellness. From the comfiest mattresses to strange things you can cook in an air fryer, Beth covers sleep, yoga, smart home, coffee machines, watches, grooming tools, fragrances, gardening and much more. If it's something that goes in your house, chances are Beth knows about it and has the latest reviews and recommendations! She's also in the know about the latest deals and discount codes from top brands and retailers.
Having always been passionate about writing, she’s written for websites, newspapers and magazines on a variety of topics, from jewellery and culture, to food and telecoms. You can find her work across numerous sites, including Wedding Ideas Magazine, Health & Wellbeing, The Bristol Post, Fashion & Style Directory, TechRadar, CreativeBloq and more. In her spare time, Beth enjoys running, reading, baking and attempting craft projects that will probably end in disaster!
You must confirm your public display name before commenting
Please logout and then login again, you will then be prompted to enter your display name.
-
REI’s big anniversary sale is back – score major deals on The North Face, Patagonia and more
Stock is flying fast, so don't hang about!
-
Denon's multi-room speakers get a game-changing update for free – plus a surprising price drop
Denon Home devices now have Qobuz Connect support, better performance and bigger playlists
-
Google kills support for old Nest thermostats – here’s what this means for you
Google announces plans to end support for Nest thermostats and stopping sales in Europe
-
LG’s new air conditioner directs air towards you – but it’s missing my favourite feature
LG launches the ArtCool AI Air and it’s packed full of clever sensors
-
Ecobee's entry-level smart thermostat is now available – here's how much it costs
It was first unveiled at CES 2025
-
This smart thermostat brand may introduce a mandatory subscription fee for the first time
It could be here sooner than expected
-
Honeywell launches first Matter-enabled smart thermostat – and it’s surprisingly affordable
Honeywell Home debuts its X2S smart thermostat at CES 2025
-
Meross takes on Google with the launch of its first Matter-compatible smart thermostat
It’s the third model in history to receive Matter certification
-
Should you keep the heating on low all day? An expert reveals all
The age-long question has finally been answered
-
Energy expert reveals ideal temperature for your thermostat this winter
Were you aware of this?