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tado° smart heating

tado° / 3 lines, 24 models / 2020-2026

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Which tado° smart heating products should I buy?

tado° sells two ranges of smart heating controls that cannot share a Home in the tado° app: X, which uses Matter over Thread, and V3+, which connects through the Internet Bridge.

The X range has the Smart Radiator Thermostat X, the Wired Smart Thermostat X, the Wireless Temperature Sensor X, the Wireless Receiver X, the Bridge X and the Heat Pump Optimizer X. The 2nd gen Wired Smart Thermostat X and Wireless Temperature Sensor X, introduced on 2026-09-02, work with the other X products. The V3+ range is still on sale.

Lines compared

X devices talk over Thread and join a home through a Thread border router: the Bridge X, a Wireless Receiver X, a Heat Pump Optimizer X or a compatible router from another brand.[1][2]

V3+ devices connect through the Internet Bridge. The Internet Bridge does not work with X, and the Bridge X and X devices do not work with V3+.[3][4]

X and V3+ devices cannot share one Home in the tado° app. One tado° account can hold a separate Home for each range.[4][5]

tado° states that X works with fewer modulating boilers than V3+.[4]

The Wired Smart Thermostat X (2nd gen) and Wireless Temperature Sensor X (2nd gen) work with the existing X products.[4][5]

Lines

Lines at a glance

3 lines
LineCurrent lineOn sale nowNewestWhat it isModels
X, 2nd generationYesYes2026-09-02The Wired Smart Thermostat X (2nd gen), Wireless Smart Thermostat X (2nd gen) Starter Kit and Wireless Temperature Sensor X (2nd gen), introduced on 2026-09-02 with USB-C rechargeable batteries.3
XYesYes2024-09-04The range that launched on 2024-05-15: radiator thermostat, wired and wireless thermostats, sensor, receiver, Bridge X, Heat Pump Optimizer X and accessories, all Matter over Thread.12
V3+YesYes2020-09-02The earlier range that connects through the Internet Bridge: radiator thermostats, thermostats, kits, add-ons and the Smart AC Control V3+.9

Currently sold

Newest first in each series.

Models sold now, newest in each series

16 modelsHow facts are sourced: every cell cites its source below
SeriesModelReleasedTypeConnectionPowerNewest
X 2nd genWired Smart Thermostat X (2nd gen)2 more models on the same date[5]Wired room thermostat[6]Matter over Thread[5][6]Rechargeable battery, charged over USB-C[6]Newest, tied
XWireless Smart Thermostat X Starter Kit[7]announcedWireless thermostat kit[8]Matter over Thread[7][8]Programmer on mains (230 V AC); sensor on 3 AAA batteries[8]Newer model: Wireless Smart Thermostat X (2nd gen) Starter Kit, released 2026-09-02.[5][7]5 older models also sold
XWireless Receiver XunknownBoiler and heat pump control unit[9]Thread border router; connects wirelessly to the Wi-Fi network[9]Mains, 230 V AC[9]date unknown
XBattery Pack for Smart Radiator Thermostat XunknownSpare battery[10]unknownunknowndate unknown
XUSB-C Cable for Smart Radiator Thermostat XunknownCharging cable[11]unknownunknowndate unknown
XPack of 5 adapters for Smart Radiator ThermostatsunknownRadiator valve adapters[12]unknownunknowndate unknown
XTrim plateunknownMounting plate[13]unknownunknowndate unknown
XStandunknownTable stand[14]unknownunknowndate unknown
V3+Wireless Smart Thermostat Starter Kit V3+1 more model on the same date[15]Wireless thermostat kit[16]Through the included Internet Bridge[16]Receiver on mains (230 V AC); sensor on 3 AAA batteries; bridge on 5 V USB[16]Newest, tied
V3+Smart Radiator Thermostat V3+unknownRadiator thermostat[18]Through the Internet Bridge[18]2 AA batteries[18]date unknown
V3+Smart Thermostat V3+unknownWired room thermostat[20][21]Through the Internet Bridge[20]3 AAA batteries[20]date unknown
V3+Wireless Receiver V3+unknownBoiler control unit[22]unknownMains, 230 V AC[22]date unknown
V3+Smart Radiator Thermostat Basic Quattro PackunknownRadiator thermostat[23]Through the Internet Bridge[23]2 AA batteries each[23]date unknown
V3+Extension KitunknownBoiler control unit[24]Through the Internet Bridge[24]230 V AC for relay and OpenTherm; bus-powered on Vaillant eBUS and Worcester EMS bus[24]date unknown
V3+Smart AC Control V3+unknownAir conditioner controller[25]Wi-Fi 2.4 GHz (802.11 b/g/n); infrared to the air conditioner[25]5 V USB[25]date unknown
V3+Internet BridgeunknownV3+ internet bridge[16][26]Connected to the router; radio link to V3+ devices[16]5 V USB[16]date unknown

At a glance

Every product at a glance

24 product familiesHow facts are sourced: every cell cites its source below
ProductGenerationReleasedStatus
Wired Smart Thermostat X (2nd gen)X 2nd gen[5]Current[6]
Wireless Smart Thermostat X (2nd gen) Starter KitX 2nd gen[5]Current[27]
Wireless Temperature Sensor X (2nd gen)X 2nd gen[5]Current[28]
Smart Radiator Thermostat XX[29]Current[3]
Wired Smart Thermostat XX[29]Current[30]
Wireless Smart Thermostat X Starter KitX[7]Current[8]
Wireless Temperature Sensor XX[29]Current[31]
Wireless Receiver XXunknownCurrent[9]
Bridge XX[29]Current[2]
Heat Pump Optimizer XX[32]Current[33]
Battery Pack for Smart Radiator Thermostat XXunknownCurrent[10]
USB-C Cable for Smart Radiator Thermostat XXunknownCurrent[11]
Pack of 5 adapters for Smart Radiator ThermostatsXunknownCurrent[12]
Trim plateXunknownCurrent[13]
StandXunknownCurrent[14]
Smart Radiator Thermostat V3+V3+unknownCurrent[18][19]
Smart Thermostat V3+V3+unknownCurrent[20]
Wireless Smart Thermostat Starter Kit V3+V3+[15]Current[16][17]
Wireless Receiver V3+V3+unknownCurrent[22]
Wireless Temperature Sensor V3+V3+[15]Current[34]
Smart Radiator Thermostat Basic Quattro PackV3+unknownCurrent[23]
Extension KitV3+unknownCurrent[24]
Smart AC Control V3+V3+unknownCurrent[25]
Internet BridgeV3+unknownCurrent[26]

Lineup

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tado° smart heating lineup

24 models, 2020-2026How facts are sourced: every cell cites its source below
ProductTypeReleasedStatusConnectionPowerNeedsSizeWorks withHome AssistantHomeyRetailers
Wired Smart Thermostat X (2nd gen)X 2nd genWired room thermostat[6]2026-09-02[5]Current[6]Matter over Thread[5][6]Rechargeable battery, charged over USB-C[6]see note 1[6]110 x 110 x 17.8 mm[6]unknownunknown
Wireless Smart Thermostat X (2nd gen) Starter KitX 2nd genWireless thermostat kit[27]2026-09-02[5]Current[27]Matter over Thread[5][27]Receiver on mains (230 V AC); sensor with a rechargeable battery charged over USB-C[27]Included Wireless Receiver X, which is a Thread border router[27]Sensor 110 x 110 x 17.8 mm; receiver 96 x 156 x 27 mm[27]unknownunknown
Wireless Temperature Sensor X (2nd gen)X 2nd genRoom sensor[28]2026-09-02[5]Current[28]Matter over Thread[5][28]Rechargeable battery, charged over USB-C[28]unknown110 x 110 x 17.8 mm[28]unknownunknown
Smart Radiator Thermostat XXRadiator thermostat[3]2024-05-15[29]Current[3]Matter over Thread[3][35]Rechargeable battery pack, charged over USB-C[3]see note 1[1][3]67 x 67 x 49 mm[3]see note 2[36–38]Via Matterunknown
Wired Smart Thermostat XXWired room thermostat[30]2024-05-15[29]Current[30]Matter over Thread[30][39]3 AAA batteries[30]see note 1[1][30]100 x 100 x 21 mm[30]see note 2[36–38]Via Matterunknown
Wireless Smart Thermostat X Starter KitXWireless thermostat kit[8]2024-09-04[7] (Announced 2024-09-04; the UK launch followed in November 2024.)Current[8]Matter over Thread[7][8]Programmer on mains (230 V AC); sensor on 3 AAA batteries[8]Included Programmer X, which is a Thread border router[8]Programmer 156 x 96 mm; sensor 100 x 100 mm[8]unknownunknown
Wireless Temperature Sensor XXRoom sensor[31]2024-05-15[29]Current[31]Matter over Thread[31][40]3 AAA batteries[31]see note 1[31]100 x 100 x 21 mm[31]see note 2[36–38]Via Matterunknown
Wireless Receiver XXBoiler and heat pump control unit[9]unknownCurrent[9]Thread border router; connects wirelessly to the Wi-Fi network[9]Mains, 230 V AC[9]unknown156 x 96 mm[9]unknownunknown
Bridge XXThread border router[2]2024-05-15[29]Current[2]Wi-Fi to the router (WPS); Thread to tado° X devices[2]Mains, 230 V AC, 0.7 W[2]Wi-Fi router[2]60 x 60 x 74 mm[2]Does not appear in HomeKit; it enables other tado° X devices[36]unknown
Heat Pump Optimizer XXHeat pump controller[33]2024-05-15[32]Current[33]Cable to the heat pump; Thread border router[32][33]Mains, 230 V AC[33]unknown130 x 130 x 27.5 mm[33]Does not appear in HomeKit; it enables other tado° X devices[36]unknown
Battery Pack for Smart Radiator Thermostat XXSpare battery[10]unknownCurrent[10]unknown48 x 48 x 27 mm[10]unknownunknown
USB-C Cable for Smart Radiator Thermostat XXCharging cable[11]unknownCurrent[11]unknown30 cm cable[11]unknownunknown
Pack of 5 adapters for Smart Radiator ThermostatsXRadiator valve adapters[12]unknownCurrent[12]unknownunknown
Trim plateXMounting plate[13]unknownCurrent[13]unknown160 x 160 mm[13]unknownunknown
StandXTable stand[14]unknownCurrent[14]unknownunknown
Smart Radiator Thermostat V3+V3+Radiator thermostat[18]unknownCurrent[18]Through the Internet Bridge[18]2 AA batteries[18]Internet Bridge from a Starter Kit[18]78 x 52 mm[18]HomeKit, Alexa and Google[19][36]Native (cloud)Official app (cloud)
Smart Thermostat V3+V3+Wired room thermostat[20][21]unknownCurrent[20]Through the Internet Bridge[20]3 AAA batteries[20]Internet Bridge from a Starter Kit[20]104 x 104 x 18 mm[20]HomeKit, Alexa and Google[21][36]Native (cloud)Official app (cloud)
Wireless Smart Thermostat Starter Kit V3+V3+Wireless thermostat kit[16]2020-09-02[15]Current[16]Through the included Internet Bridge[16]Receiver on mains (230 V AC); sensor on 3 AAA batteries; bridge on 5 V USB[16]Router for the included Internet Bridge[16]Sensor 104 x 104 x 18 mm; receiver 80 x 140 x 26 mm; bridge 81 x 27 x 22 mm[16]HomeKit, Alexa and Google[16][36]Native (cloud)Official app (cloud)
Wireless Receiver V3+V3+Boiler control unit[22]unknownCurrent[22]unknownMains, 230 V AC[22]A Wired Smart Thermostat Starter Kit[22]80 x 140 x 26 mm[22]unknownNative (cloud)unknown
Wireless Temperature Sensor V3+V3+Room sensor[34]2020-09-02[15]Current[34]unknown3 AAA batteries[34]Smart Radiator Thermostats[34]104 x 104 x 18 mm[34]unknownunknown
Smart Radiator Thermostat Basic Quattro PackV3+Radiator thermostat[23]unknownCurrent[23]Through the Internet Bridge[23]2 AA batteries each[23]Internet Bridge from a Starter Kit[23]78 x 52 mm[23]unknownNative (cloud)Official app (cloud)
Extension KitV3+Boiler control unit[24]unknownCurrent[24]Through the Internet Bridge[24]230 V AC for relay and OpenTherm; bus-powered on Vaillant eBUS and Worcester EMS bus[24]Internet Bridge V3+ and a Wireless Temperature Sensor V3+ or Smart Thermostat V3+[24]174 x 174 x 57 mm[24]unknownNative (cloud)unknown
Smart AC Control V3+V3+Air conditioner controller[25]unknownCurrent[25]Wi-Fi 2.4 GHz (802.11 b/g/n); infrared to the air conditioner[25]5 V USB[25]An air conditioner with an infrared remote that shows its current settings[25]100 x 100 x 15 mm[25]HomeKit, Alexa and Google Assistant[25]Native (cloud)Official app (cloud)
Internet BridgeV3+V3+ internet bridge[16][26]unknownCurrent[26]Connected to the router; radio link to V3+ devices[16]5 V USB[16]Router[16]81 x 27 x 22 mm[26]The HomeKit-enabled Internet Bridge is required for HomeKit[36]Native (cloud)unknown
  1. Bridge X or another Thread border router
  2. HomeKit, Alexa and Google Home through Matter

Timeline

11 dated events across the line, each with its own source. Products with the same date, event and source share one entry.

  1. 2020
    1. Wireless Smart Thermostat Starter Kit V3+, Wireless Temperature Sensor V3+: Released [15]

      Available the day it was announced.

  2. 2024
    1. Smart Radiator Thermostat X, Wired Smart Thermostat X, Wireless Temperature Sensor X, Bridge X: Released [29]

      Launch in Germany, Austria, the Netherlands, France, Italy, Spain, Belgium, Sweden and Denmark.

    2. Heat Pump Optimizer X: Released [32]

      Launch in Germany, Austria, the Netherlands, France, Italy, Spain, Belgium, Sweden and Denmark.

    3. Wireless Smart Thermostat X Starter Kit: Announced [7]

      Available in the UK in November 2024.

  3. 2026
    1. Wired Smart Thermostat X (2nd gen), Wireless Smart Thermostat X (2nd gen) Starter Kit, Wireless Temperature Sensor X (2nd gen): Released [5]

      On sale from the webshop and selected retailers across Europe.

Identify a model

The model name is printed on the device or its box. The range shows in the size, the display and the power source.

Identifying clues

How facts are sourced: every cell cites its source below
ModelRangeSize and displayPower
Smart Radiator Thermostat XX67 x 67 x 49 mm, LCD with touch control and a knobRechargeable battery pack, USB-C
Smart Radiator Thermostat V3+V3+78 x 52 mm, LED display and a knob2 AA batteries
Wired Smart Thermostat XX100 x 100 x 21 mm, LCD with three buttons3 AAA batteries
Wired Smart Thermostat X (2nd gen)X, 2nd gen110 x 110 x 17.8 mm, LED matrix with a light ringRechargeable battery, USB-C
Smart Thermostat V3+V3+104 x 104 x 18 mm, LED matrix3 AAA batteries
Wireless Temperature Sensor XX100 x 100 x 21 mm, LCD with three buttons3 AAA batteries
Wireless Temperature Sensor X (2nd gen)X, 2nd gen110 x 110 x 17.8 mm, LED matrix with a light ringRechargeable battery, USB-C
Wireless Temperature Sensor V3+V3+104 x 104 x 18 mm, LED matrix3 AAA batteries
Bridge XX60 x 60 x 74 mmMains
Internet BridgeV3+81 x 27 x 22 mm5 V USB

Bridges. The Bridge X and the Internet Bridge look different and do not replace each other. X devices need the Bridge X, a Wireless Receiver X, a Heat Pump Optimizer X or another Thread border router. V3+ devices need the Internet Bridge.

Homes in the app. The tado° app keeps X and V3+ devices in separate Homes. One tado° account can hold both.

Cite this page

tado° smart heating. Smart Home Canon. https://smarthomecanon.com/lines/tado-smart-heating. Last checked 2026-10-17.

Sources

  1. [1]
    MFRhelp.tado.com / tado Help Center: Do I need a tado Bridge X?
    Accessed Back to text
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  13. [13]
    MFRshop.tado.com / tado shop: Trim plate
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    MFRshop.tado.com / tado shop: Stand
    Accessed Back to text
  15. [15]
  16. [16]
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    MFRshop.tado.com / tado shop: Add-on Smart Radiator Thermostat
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    MFRshop.tado.com / tado shop: Add-on Smart Thermostat (wired)
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    MFRshop.tado.com / tado shop: Add-on Wireless Receiver V3+
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    MFRshop.tado.com / tado UK shop: Extension Kit
    Accessed Back to text
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    MFRshop.tado.com / tado shop: Internet Bridge
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