Best Fritz Thermostat 2026

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Last Updated - 22.07.2026

Best Choice

01

FRITZ!

AVM FRITZ!WLAN Mesh Repeater 2400 (Dual-WLAN AC + N up to 1,733 MBit/s (5 GHz) + 600 MBit/s (2.4 GHz), 1 x Gigabit LAN, German Version

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9.6

Exceptional

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Main highlights

WLAN mesh: automatically connects the Fritz products that you are using to an intelligent, optimum performance WiFi network; compatible with all common WiFi routers.
Ultra-fast gigabit LAN port for connecting a LAN bridge or network devices that don’t have a WiFi function. Supports IPv6 internet protocol.
More wireless coverage for all connected devices, ultra-fast wireless AC (1,733 Mbps) and highest wireless range with WLAN N (600 Mbps).
Easy one-touch WiFi set-up via WPS (WiFi protected set-up), factory-secure WiFi encryption.
Contents: FRITZ!Repeater 2400, LAN cable, installation instructions (English language not guaranteed), earthing contact adapter.

99,99 €
02

Bosch

Bosch Smart Home Radiator Thermostat II [+M], Smart Thermostat, Flexible Use in Bosch Smart Home System or Cross-Manufacturers in Matte Systems, Anthracite

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9.5

Excellent

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Main highlights

Smart temperature control: heating thermostat ensures room-accurate and individually adjustable feel-good temperature, whose values are displayed in the app
Save energy: smart thermostat heats only according to individual needs and can be configured via time programs, heating schedules, scenarios and clever services to avoid unnecessary heating
Maximum added value in the system: a Bosch Smart Home controller is required to integrate into the Bosch Smart Home System. The radiator thermostat II is not compatible with Bosch EasyControl
Flexible use: can be integrated into the Bosch Smart Home System with the Bosch Smart Home Controller or even without a controller in Matter systems. Use can be selected during installation
Flexible control: operation of the heater directly on the device, via a room thermostat, remotely in the app, fully automated or possible by voice
Comfortable indoor climate: radiator thermostats of a room are combined into a room temperature in the Bosch Smart Home System and can be precisely controlled via the room thermostat

58,76 €
03

FRITZ!

FRITZ! Smart Thermo 302, Intelligent Radiator Controller, Efficient Heating & High Convenience, Compatible with Standard Radiators, Comfortable Control via App & Display, Easy Setup

26% Off

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Smart radiator controller for the FRITZ!Box home network, automatic and precise control of the room or living temperature, ideal for creating an individual, efficient heating rhythm
Energy-efficient e-paper display and numerous comfort functions, such as frost protection, limescale protection or boost function, window on detection, button lock, push service, group switching and much more
Easy to install and set up on all standard radiator valves with connection thread, additional adapter available
Control via PC, notebook, FRITZ!Fon, smartphone or tablet - even on the go via the Internet and via app, individual heating profiles can be programmed
Connection with FRITZ!Box at the touch of a button and convenient configuration via the FRITZ!Box user interface, for FRITZ!Box with DECT base, new features available via regular, free updates

51,00 € 69,00 €(26% Off off)
Value for Money

04

FRITZ!

FRITZ! Smart Control 440 Portable DECT Button for Smart Home, Four Selectable Buttons & E-Paper Display, Light, Heating & More, Compatible with FRITZ!Box, No Bridge Required

28% Off

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9.3

Excellent

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Main highlights

Handy design, portable or stationary use, easy wall mounting or magnetic wall mount
FRITZ! DECT 440 & FRITZ!Smart Control 440 are technically identical: it is only a product renaming and the product packaging varies.
DECT instead of WLAN: long range, hardly susceptibility to interference and directly connected to the FRITZ!Box, without bridge or additional hardware
Convenient remote control for the smart home network using four configurable buttons, use in conjunction with FRITZ! sockets and FRITZ! radiator controller
Control up to twelve devices or groups of devices conveniently via the high-resolution e-paper display

49,99 € 69,00 €(28% Off off)
05

FRITZ!

FRITZ! Smart Control 350 | Magnetic Door/Window Contact for Smart Home | Detects Open or Closed States | Energy Efficient DECT ULE Sensor | Easy Setup

15% Off

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9.2

Excellent

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Main highlights

Smart door and window contact that immediately detects as soon as doors or windows are opened, closed or tilted and triggers scenarios to save on heating and energy costs
Simply control and control via the FRITZ!App Smart Home, the FRITZ!Fon or the FRITZ!Box user interface
Quick installation thanks to the included adhesive strips, can be attached to or on the window or door frame as well as integration into the home network within a few minutes at the touch of a button
Perfect interaction with intelligent radiator controllers, such as the FRITZ!DECT 302, as well as the FRITZ!Box via the DECT-ULE sensor
Box contents: FRITZ!Smart Control 350 (consisting of sensor and magnet), quick start guide, 2 x AAA batteries, adhesive strip, reset needle

33,00 € 39,00 €(15% Off off)
06

TP-Link

TP-Link Kasa KE100 Smart Radiator Thermostat, Accessory Product, Energy Saving, Schedule, Control on the Go via App, Alexa and Google Assistant, Hub Required, White, 56.6 x 56.5 x 83.93 mm

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9.1

Excellent

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Main highlights

Versatile compatibility – Fits most radiator valve threads (M30x1.5) and the six included adapters (RA, RAV, RAVL, CAL, M28 and GIA) ensure more compatibility. -
Ultra-long standby time – Using the energy-saving wireless technologies that promise a longer battery life.
Smart anywhere and any time – Control the temperature of your home with the Kasa Smart App from anywhere and any time. Set schedules to automate your heating that matches your daily routines. Open window detection – KE100 can now work with Tapo T110. Please add Tapo T110 via the KH100 hub in the Kasa app.
Room-by-room comfort – Set the perfect temperature in each room individually. Save your preferred scenario for further use.
Please note that the Kasa KE100 can only be controlled via the Kasa app and not via the Tapo app. Tapo sensors (Tapo T110, Tapo T310, Tapo T315) can be set up in the Kasa app. Please add the Tapo sensors via the KH100 hub in the Kasa app. The Kasa KE100 kit only supports 2.4GHz WiFi, not 5GHz.
One for all – Each hub can connect and control up to 32 radiators, with the Kasa app you can combine and control all radiators. All rooms under control.
Matter certified – Users can connect the KE100 locally to Apple Home, Amazon Alexa, Google Home, Samsung SmartThings or other Matter-enabled smart home platforms. *Kasa Hub required. *Please update the Kasa app and KH100 firmware to the latest version. 1. Go to the KH100 Hub page in the app, then go to Device Settings > Mount to Matter to find Matter code. 2. Follow the Matter setup process to configure KH100. 3. All other Kasa Hub products, such as TRVs and sensors, are synchronised with third-party platforms.
Easy installation – Simply replace your old radiator valve with Kasa and follow the step-by-step instructions (English language not guaranteed) in the app for installation. You can do all this yourself without difficulty.
Child lock – Prevent children from accidentally operating your radiator.
Caution. Please note that this thermostat must work together with a hub, you must have KE100 KIT in advance. KE100 cannot work with the Tapo H100 and Tapo H200 hub, but only with the hub in the KE100 kit.

32,99 €
07

FRITZ!

Avm Fritz!Dect 210 Intelligent Socket for Smart Home with Splash Protection IP 44 for Outdoor Use

13% Off

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Splash-proof (IP 44) and extended temperature range for outdoor use; energy consumption measurement.
Select on/off mode: single, daily, weekday, rhythmic, random, depending on the time of sunset and sunset or by Google calendar.
Intelligent smart home socket; automatic or manual on / off for connected devices (up to 3,450 W).
Controllable via FRITZ!Fon via DECT, via PC, smartphone or tablet via the user interface of the FRITZ!Box or MyFRITZ!app.
Box contents: FRITZ!DECT 210, German installation instructions, wireless range: up to 300 metres outdoors, and up to 40 metres in buildings.

34,99 € 39,99 €(13% Off off)
08

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Optimal adaptation to weather conditions: The heating thermostat has a holiday function, frost and limescale protection function and automatic summer and winter time adjustment, which can efficiently save heating costs.
Individually programmable: settings can be made directly on the Comet Plus or with the PROGmatic programming stick (not included) on the PC. The Comet Plus is a purely electric thermostat (not a smart accessory).
Easy to use: The Comet Plus energy saving controller is easy to install and operate. It is valve-friendly thanks to the Eurotronic valve protection and also fits many other well-known radiator valves.
Box contents: Comet Plus energy-saving controller, instruction manual DE (other languages on request), 3 adapters (Danfoss RA, RAV, RAVL), 2 x AA Mignon batteries, dimensions: 65 x 54 x 85 mm, colour: white
AUTOMATIC ROOM VENTILATION Thanks to the window open detection, the radiator thermostat detects directly when a room is being ventilated and closes the valve immediately to save energy.

16,94 €
09

Homematic IP

Homematic IP Smart Home Radiator Thermostat - Standard - Intelligent heating control via app and voice control with Amazon Alexa, 140280A0

16% Off

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Thanks to the optimum start / stop function, the desired room temperature is calculated in advance and thus achieved in the heating profile at the set point in time.
Replaces conventional thermostats (M30x1.5, Oventrop, Danfoss) and controls the radiator according to individual needs.
Note: You can get products with different model numbers, but the functionality of all products is identical
Individual temperature profiles with up to 13 changes per day in 3 adjustable heating profiles.
For operation, the Homematic IP Access Point in connection with the free app (free cloud service), the central CCU2 / CCU3 or a suitable partner solution is necessary.
Energy savings of up to 30% through automatic temperature reduction when ventilating and heating as required
Convenient voice control with Google Assistant and Alexa, e.g. B. via Echo in connection with the Homematic IP Access Point.
Automatic lowering of the temperature during ventilation via the window open detection or in connection with the Homematic IP window and door contact - optical

41,89 € 49,95 €(16% Off off)
10

MECHONIX

Desk Mount / Stand for Fritz!DECT 440 Push Button Ideal for Controlling Fritz DECT 302 Thermometer & AVM Radiator Thermostat - For Better Readability and Operability, Angled & Non-Slip

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Tool-free installation in seconds – just snap on!
Secure stand: non-slip feet ensure a stable hold on all surfaces
Quality from Germany: Made in Germany in white colour
Ergonomic design: angled table stand: optimal readability and comfortable operation at the workplace
Compatibility: Specially designed stand for FRITZ!DECT 440 buttons

13,99 €