Honeywell Home / Resideo X2S Smart Thermostat (RTH2SMC/N)
RTH2SMC/N White; Amazon ASIN B0DSGGCGG4; MSRP ~US$79.99; C-wire required; not for 120–240V baseboard
High confidence
2026-10-16 last checked
wifi transport
Specs
| Brand | Honeywell Home / Resideo |
|---|---|
| Model | X2S Smart Thermostat (RTH2SMC/N) |
| Device type | Thermostat |
| Matter / firmware | Matter 1.3 (CSA260DHMAT49893-50, certified 2026-02-03, fw 2.0.4.0, hw Rev A; Family SKU TH2320WF4010; Family Variant RTH2SMC; VID 0x131A PID 0x1005; Primary 0x0301) |
| Transport | wifi |
| Thread role | n/a (Wi-Fi) |
| Confidence | High |
| Last checked | 2026-10-16 |
Platform support for this device type
| Field | Apple Home | Google Home | Amazon Alexa | SmartThings | Home Assistant | Homey | Hubitat |
|---|---|---|---|---|---|---|---|
| Pairs | Y | Y | Y | Y | Y | Y | Unknown |
| Control | Y | Y | Y | Y | Y | Y | Unknown |
| Starts automation | Unknown | Y | Unknown | Y | Y | Y | Unknown |
| Controlled by automation | Y | Y | Y | Y | Y | Y | Unknown |
| Confidence | Med | Med | Med | Med | High | Med | Med |
Product notes
CSA End Product Thermostat 0x0301 Wi-Fi. Maker (honeywellhome.com / Amazon): Matter Certified; Apple Home, Amazon Alexa, Google Assistant via First Alert / Resideo app setup. FocusPRO S200 and RTH2CWF are related family variants with other CSA IDs — not this retail SKU.
v0.48 High add. CSA page explicitly lists Family Variant SKU RTH2SMC under CSA260DHMAT49893-50. Skipped FocusPRO S200 TH2110WF4008 (separate cert CSA260DEMAT49890-50) to avoid family duplication.
How it differs from the type answer
- 24V HVAC wall thermostat (up to 2H/2C conventional or 2H/1C heat pump) — HVAC-style fit to type matrix.
- C-wire required (24 VAC); First Alert by Resideo app for configuration.
- Auto-away / utility demand-response / filter reminders are Resideo-app features beyond Matter climate columns.
Sources
- csa-iot.org · official · 2026-10-16
- honeywellhome.com · official · 2026-10-16
- amazon.com · retail · 2026-10-16
- mattercatalog.com · community · 2026-10-16