Honeywell Home X7B Smart Thermostat X7BWF1W (White) vs Honeywell Home X7S Smart Thermostat X7SMC4B (Black)
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
Check Honeywell Home X7B Smart Thermostat X7BWF1W (White) on AmazonCheck Honeywell Home X7S Smart Thermostat X7SMC4B (Black) on Amazon
Honeywell Home X7B Smart Thermostat X7BWF1W (White)
24 VAC systems up to 2H/2C, or heat pumps with electric backup, where room sensors are not needed
A 4.3-inch touchscreen Wi-Fi thermostat run through the First Alert app, with Matter and a set schedule, Auto Away or both. The manual says it cannot pair room sensors and lists radar presence sensing as X7S only. It needs a C wire, supports only electric heat pump backup, and cannot run humidity or ventilation equipment.
Published specifications
- Manual, maker, listing: up to 3H/2C heat pump (electric backup), 2H/2C conventional
- Manual: no wireless room sensors; radar sensor is X7S only
- Maker page: lists onboard radar sensor for X7B (conflict with manual)
- Manual: 24 VAC C wire required; Wi-Fi 2.4 and 5 GHz; 2.2 VA max
- Maker: 3.54 x 5.24 x 0.96 in, 4.3-inch display; manual: heat 40-90°F, cool 50-99°F
- User guide: 2-year limited warranty
Strengths
- Same stage support as the X7S, agreed by manual, maker page and listing
- Listing says a free C-wire adapter voucher is in the box
- Two-year limited warranty in the user guide
Caveats
- No room sensor support and no radar presence sensing, per the manual
- Maker page lists a radar sensor the manual says only the X7S has
- Cannot control humidifiers or ventilators; electric heat pump backup only
Read the full Honeywell Home X7B Smart Thermostat X7BWF1W (White) guide
Honeywell Home X7S Smart Thermostat X7SMC4B (Black)
24 VAC systems up to 2H/2C, or heat pumps with electric backup, where room sensors and presence sensing appeal
A 4.3-inch touchscreen Wi-Fi thermostat run through the First Alert app, with Matter, a built-in radar sensor and support for up to 20 XRSENSOR room sensors. It needs a C wire. The manual says X7 models cannot control humidifiers, dehumidifiers or ventilators, and heat pumps must use electric backup.
Published specifications
- Manual, maker, listing: up to 3H/2C heat pump (electric backup), 2H/2C conventional
- Manual: X7 cannot control humidifier, dehumidifier or ventilator
- Manual: radar sensor and up to 20 XRSENSOR room sensors on X7S only
- Manual: 24 VAC C wire required; Wi-Fi 2.4 and 5 GHz; 2.2 VA max
- Manual and maker: 90 x 133 x 24 mm; 4.3-inch display; heat 40-90°F, cool 50-99°F
- User guide: 2-year limited warranty
Strengths
- Radar presence sensing and up to 20 room sensors, per the manual
- Stage support agreed by manual, maker page and listing
- Two-year limited warranty in the user guide
Caveats
- Cannot control humidifiers, dehumidifiers or ventilators, per the manual
- Listing says an adapter or voucher is included; the manual calls the adapter optional
- Heat pumps: electric backup only, no gas or oil furnace backup
Read the full Honeywell Home X7S Smart Thermostat X7SMC4B (Black) guide
How to choose between them
Choose the Honeywell Home X7B Smart Thermostat X7BWF1W (White) if your situation matches: 24 VAC systems up to 2H/2C, or heat pumps with electric backup, where room sensors are not needed. Its main caveat: No room sensor support and no radar presence sensing, per the manual.
Choose the Honeywell Home X7S Smart Thermostat X7SMC4B (Black) if your situation matches: 24 VAC systems up to 2H/2C, or heat pumps with electric backup, where room sensors and presence sensing appeal. Its main caveat: Cannot control humidifiers, dehumidifiers or ventilators, per the manual.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Honeywell Home X7B Smart Thermostat product page and specifications Source for Honeywell Home X7B Smart Thermostat X7BWF1W (White)
- Resideo X7S & X7B Smart Thermostats Installation and User Manual 33-00769-01 Source for Honeywell Home X7B Smart Thermostat X7BWF1W (White) and Honeywell Home X7S Smart Thermostat X7SMC4B (Black)
- Resideo X7 Series Smart Thermostat User Guide 33-00748EF-01 Source for Honeywell Home X7B Smart Thermostat X7BWF1W (White) and Honeywell Home X7S Smart Thermostat X7SMC4B (Black)
- Honeywell Home X7S Smart Thermostat product page and specifications (SKU X7SMC4B/U) Source for Honeywell Home X7S Smart Thermostat X7SMC4B (Black)
Primary sources checked .