FRITZ!Smart Control 440

In no time at all, you can connect the FRITZ!Smart Control 440 to the FRITZ!Box – with the simple press of a the button. The four-way switch is suitable for any FRITZ!Box with a DECT base and is connected via secure DECT ULE technology.

Customizable buttons

Specify up to 12 FRITZ! devices or device groups, which you can turn on/off and control as desired using the four buttons. For example, you can turn on/off devices connected to the FRITZ!Smart Energy 200 and 210 smart plugs and manage the room temperature with the FRITZ!DECT 301 radiator control. Dim or brighten up your FRITZ!DECT 500 (discontinued), creating a feel-good atmosphere and the perfect lighting to match your mood at the touch of a button.

Glare-free e-paper display

With the magnetic wall mount, you can place the smart remote control wherever you want and the e-paper display lets you know the room temperature at the relevant location.


  • Four-way smart switch for your smart home
  • Magnetic wall mount
  • High-contrast e-paper display

Features

  • Four configurable buttons for convenient operation of smart home devices
  • Supports FRITZ!Smart products, compatible Zigbee devices, and HAN FUN roller shutter controls
  • Switch and control up to 12 individual devices or groups with three views
  • Enables triggering of templates and scenes, switching of answering machine and Wi-Fi guest access
  • Turn the Wi-Fi guest access on and off and display the QR code
  • Turn the answering machine on and off
  • Integrated temperature and humidity sensor with measured values shown on the display, in the FRITZ!Box, in FRITZ!App Smart Home, and in the Matter network
  • Use as external temperature sensor for automatic control of the FRITZ! radiator controls
  • High-resolution e-paper display
  • Display of operation lock and error messages for radiator controls
  • Menu button with LED for simple registration and switching views
  • Convenient connection with the FRITZ!App Smart Home
  • Configuration over the FRITZ!Box user interface
  • Free updates with new functions and optimizations

Name change in Q1 2026 from FRITZ!DECT 440 to FRITZ!Smart Control 440: 

The product remains the same. The name, the packaging, the article number, and the EAN code change.

Package Contents

  • FRITZ!Smart Control 440
  • Quick guide
  • Wall mount
  • 1 x adhesive strip
  • 2 x screw / 2 x wall plug
  • 2 x AAA battery

Device properties

  • Dimensions (W x H x D): 69 x 69 x 18 mm
  • Weight: 75 g
  • Ready for use at an ambient temperature of 10 °C to 40 °C
  • Wireless standard: DECT ULE
  • Radio range: up to 40 metres indoors
  • Frequency range: 1880 – 1900 MHz
  • Maximum transmission power: 250 mW

Product Version Number

  • 20003089 FRITZ!DECT 440 Int. Edition

Have any questions?

We're happy to answer them for you! You can find out how to get in touch with your contact person under Contact.

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