Honeywell Home T5 Smart Thermostat RTH8800WF2022 vs Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003
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 T5 Smart Thermostat RTH8800WF2022 on AmazonCheck Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003 on Amazon
Honeywell Home T5 Smart Thermostat RTH8800WF2022
24 VAC systems with a C wire, up to 2 heat/2 cool, on a 2.4 GHz network
A Wi-Fi touchscreen thermostat with schedules, geofencing or manual control. Resideo's guide requires a C wire and lists no adapter in the box, and it excludes millivolt and baseboard systems. Wi-Fi is 2.4 GHz only. Up to 2 cool and 2 heat stages, plus 1 aux/emergency stage. Two-year warranty.
Published specifications
- Guide: C wire (24 VAC) required; no adapter in the listed box contents
- Guide: up to 2 cool/compressor, 2 heat, 1 aux/E stage
- Guide: no baseboard (120-240 V), no millivolt, no S or U terminals
- Maker: Wi-Fi 802.11 b/g/n, 2.4 GHz only
- Maker and listing: 4.06 x 4.06 x 1.06 in; touchscreen; 5-2, 5-1-1, 7-day
- Guide and maker: 2-year limited warranty
Strengths
- Temperature stays adjustable at the unit if Wi-Fi drops
- Guide spells out stages and excluded systems clearly
- Two-year warranty agreed by guide and maker page
Caveats
- C wire required and no adapter listed in the box
- 2.4 GHz Wi-Fi only
- Guide and maker page name different apps
Read the full Honeywell Home T5 Smart Thermostat RTH8800WF2022 guide
Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003
24 VAC systems up to 3 heat/2 cool where room-by-room sensing appeals
A Wi-Fi touchscreen thermostat with one wireless room sensor for temperature, humidity and occupancy, and support for up to 20. A C wire is needed, and the kit includes a C-wire adapter if you lack one. It does not run baseboard or millivolt systems. Two-year limited warranty.
Published specifications
- Maker: up to 3 heat/2 cool; heat, cool, auto, off, emergency heat
- Guide: C wire needed for 24 VAC; C-wire adapter provided if you lack one
- Guide: no electric baseboard (120-240 V), no millivolt, no S terminals
- Guide: up to 20 sensors, up to 200 ft range; Active Rooms or selected rooms
- Maker: 4.92 x 3.7 x 0.94 in; Wi-Fi 2.4 and 5 GHz; 7-day programming
- Guide, maker, listing: 2-year limited warranty (guide: battery excluded)
Strengths
- C-wire adapter is in the box, per the maker page and guide
- Room priority can follow selected rooms or rooms with motion
- Two-year limited warranty agreed by all three sources
Caveats
- Adapter fitting is more complicated on zoned systems, per the guide
- No millivolt or line-voltage baseboard support
- Honeywell's page labels this kit discontinued
Read the full Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003 guide
How to choose between them
Choose the Honeywell Home T5 Smart Thermostat RTH8800WF2022 if your situation matches: 24 VAC systems with a C wire, up to 2 heat/2 cool, on a 2.4 GHz network. Its main caveat: C wire required and no adapter listed in the box.
Choose the Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003 if your situation matches: 24 VAC systems up to 3 heat/2 cool where room-by-room sensing appeals. Its main caveat: Adapter fitting is more complicated on zoned systems, per the guide.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Honeywell Home T5 Smart Thermostat product page and specifications (SKU RTH8800WF2022/U) Source for Honeywell Home T5 Smart Thermostat RTH8800WF2022
- Resideo T5 Smart Thermostat Quick Install Guide 33-00363EFS-07 Source for Honeywell Home T5 Smart Thermostat RTH8800WF2022
- Honeywell Home T9 Smart Thermostat product page and specifications (SKU RCHT9610WFSW2003/U) Source for Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003
- Honeywell Home T9 Thermostat Installation Guide 33-00421EF-01 (listing-supplied PDF) Source for Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003
- Wireless Room Sensors for T9 and T10 Pro Quick Start Guide 33-00429EFS-01 (listing-supplied PDF) Source for Honeywell Home T9 Smart Thermostat with 1 Room Sensor RCHT9610WFSW2003
Primary sources checked .