Honeywell Home T9

Device Radar’s 2026 comparison listed about $179–$219 depending on the sensor kit. Confirm the current kit.

Hardware

Hardware for Resideo Honeywell Home T9
Type	24V Wi-Fi thermostat. Color touchscreen. This row is the classic T9, not a guessed 2026 revision.
Room sensors	Wireless sensors exist as kits and add-ons. Confirm whether the box includes one.
C-wire	Plan on a C wire unless the specific listing says otherwise. Do not assume a power-extender kit is included.

Software for Resideo Honeywell Home T9
App	Honeywell Home / Resideo app
Voice	Alexa and Google Assistant on the widely sold Wi-Fi T9
Apple Home	HomeKit is not part of the classic T9
Matter	Not a feature of the classic T9. Device Radar’s comparison mentions a Matter-marked SKU — match the model number. This row will not invent that spec.

What you buy with it for Resideo Honeywell Home T9
What to verify	Sensor included or not, C-wire requirement, and whether the listing is the Matter model or the older Wi-Fi model.
Who it fits	A contractor-familiar thermostat when HomeKit and a built-in speaker are not the brief.

Drawn from the published specifications and what else you have to buy. Not a lab score.

• Usually the least expensive of the three thermostats in this catalog, before sensor kits.
• Alexa and Google Assistant cover the common voice cases.
• Room sensors can be added without buying a different brand of stat.

• No HomeKit on the classic model.
• Matter is not something this row can confirm. Read the model number.
• Fewer included parts than the ecobee, which ships a sensor and a power extender.

A router can be compared with another router. It cannot be compared with a lock, a bulb, or a speaker.

Hands-on writing, separate from the AI summary: read the editorial.

Spec rows checked 2026-10-13. Street prices change after that date.