Honeywell Home X7S Review: Radar Presence Detection Behind a Customisable Screen
A Matter certified thermostat with an onboard radar sensor, dual-band WiFi and room prioritisation across up to 20 wireless sensors.
The Honeywell Home X7S is Resideo's mid-tier smart thermostat, and its defining piece of hardware is an onboard radar sensor that drives occupancy and presence detection and wakes the 4.3 inch touchscreen as you walk up to it. The display colour and style are both selectable, it takes 2.4 or 5 GHz WiFi rather than the 2.4 GHz-only radio most thermostats ship with, and it is Matter certified, so it answers to Apple Home, Amazon Alexa, Google Home and SmartThings, with Home Assistant adopting it through Matter. Paired with wireless room sensors, the Priority setting heats and cools the rooms that are actually being used instead of the hallway the thermostat hangs in. It needs a C wire, and those room sensors are a separate purchase.
- Multi-room homes
- Matter and Apple Home households
- Homes with hot and cold spots
- ENERGY STAR rebate seekers
Pros
- 4.3 inch touchscreen with selectable colour and style
- Onboard radar sensor for occupancy and presence detection
- Display wakes from idle to active as you approach
- Matter certified, so it works with Apple Home, Alexa, Google Home and SmartThings
- Home Assistant support through the Matter integration
- Up to 20 wireless room sensors at a 200 ft range, with room prioritisation
- Dual-band 2.4 and 5 GHz WiFi rather than 2.4 GHz only
- ENERGY STAR certified, with utility rewards and rebate eligibility
- Auto Away geofencing, time-based scheduling, or the two combined
- Two-year warranty
Cons
- C wire required, so it is hardwired only
- Wireless room sensors are sold separately
- Decorative cover plate is a separate accessory
- Air quality is humidity monitoring only, with no TVOC or CO2 sensing
- No speaker
- WiFi is the only radio, with no Zigbee, Z-Wave or Thread
- No energy-saving suggestions or recommendations
- Does not work with electric baseboard heat at 120 to 240 V
Who is the Honeywell Home X7S for?
It suits a home where one thermostat has to keep several rooms comfortable rather than just the spot it is mounted on. Up to 20 XRSENSOR wireless indoor sensors pair with it across a 200 ft range, each reading temperature, humidity and motion, and the Priority setting either averages a set of rooms you pick or follows whichever rooms detect movement. On its own it still covers most systems: up to 3 heat and 2 cool on a heat pump with electric backup, or 2 heat and 2 cool on conventional forced air, gas, oil, electric and hot water heat. The one system it does not control is electric baseboard heat at 120 to 240 V, so that rules it out for a whole class of older homes.
What the Honeywell Home X7S offers
The 4.3 inch touchscreen is the part you live with daily, and both its colour and its style are selectable, so the idle screen can be matched to the room while still carrying the time, the indoor temperature and humidity, and the outdoor conditions. Behind it sits a radar sensor that handles advanced occupancy and presence detection and can transition the display from idle to active on approach. Connectivity is dual band on 802.11ax/ac/a/b/g/n, and Matter certification (specification 1.4, over WiFi) is what carries it into Apple Home, Amazon Alexa, Google Home and SmartThings, while Home Assistant picks it up through its Matter integration. Scheduling runs as location-based Auto Away geofencing, as a time-based programme with four adjustable periods per day, or as a combination of both, and Adaptive Recovery learns how long the system needs so the house reaches its setpoint at the scheduled time rather than starting then. ENERGY STAR certification also opens up utility rewards and rebate programmes.
What to know before you buy
It is hardwired and needs a C wire, though a C-Wire Adapter is included for systems that do not have one. The wireless room sensors that make the Priority feature worth having are sold separately, as is the decorative cover plate that hides the footprint of a larger old thermostat; the UWP wall plate, screws and anchors are in the box. Indoor air quality here means humidity monitoring plus maintenance reminders for air filters, humidifier pads, dehumidifier filters and UV bulbs, not pollutant sensing: there is no TVOC or CO2 sensor on board. There is no speaker either, so this is a thermostat and not an intercom, and its only radio is WiFi, with no Zigbee, Z-Wave or Thread on board. Scheduling is manual and location-based rather than suggestion-driven, so it will not propose an efficiency plan of its own. The warranty runs two years.
Is the Honeywell Home X7S worth it?
It sits below the flagship of the same family and gives up that model's larger screen and its video doorbell intercom, but it keeps the features that actually change how a thermostat behaves: radar presence detection, the customisable display, the room sensor ecosystem and full Matter certification. Measured against simpler smart thermostats that add little more than WiFi and an app, the X7S is answering a different question, namely which rooms matter right now and whether anyone is home at all. If the house is a single open space and a schedule is all that is wanted, a cheaper model in the range covers it. For a multi-room home where the comfort keeps landing in the wrong room, this is the model in the line built for that problem.
Frequently asked questions
Does the Honeywell Home X7S need a C wire?
Yes. It is hardwired and requires a C wire for power. A Honeywell Home C-Wire Adapter is included for systems that do not already have one, and the UWP wall plate, screws and anchors come in the box as well.
Is the Honeywell Home X7S Matter certified?
Yes. It is certified with the Connectivity Standards Alliance as part of the ElitePRO/X8/X7 Smart Thermostat family, on Matter specification 1.4 with WiFi as the transport. That certification is what lets it join Apple Home, Amazon Alexa, Google Home and SmartThings, and Home Assistant adopts it through its Matter integration.
Does the Honeywell Home X7S come with a room sensor?
No, room sensors are sold separately. The thermostat pairs with up to 20 XRSENSOR wireless indoor sensors at a range of 200 ft, each reading temperature, humidity and motion, and the Priority setting then either averages the rooms you select or follows the rooms where motion is detected.
How does the Honeywell Home X7S know nobody is home?
It combines a built-in radar sensor for occupancy and presence detection with location-based Auto Away, which uses your phone's location through the First Alert app. Auto-Away has to be switched on rather than working out of the box.
Does the Honeywell Home X7S work on 5 GHz WiFi?
Yes. It connects on either 2.4 or 5 GHz using 802.11ax/ac/a/b/g/n, so it is not restricted to the 2.4 GHz band the way many smart thermostats are.
Does the Honeywell Home X7S monitor air quality?
It monitors indoor humidity and displays it, and it can raise IAQ reminders when air filters, humidifier pads, dehumidifier filters or UV bulbs are due for replacement. It has no TVOC or CO2 sensor, so it does not measure those pollutants directly.
