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Honeywell Home ElitePRO S1100 Smart Thermostat

Honeywell Home / THX1100B4/U, THX1100W3/U

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Does the Honeywell Home ElitePRO S1100 Smart Thermostat work with HomeKit, Alexa, and Google Home?

The Honeywell Home ElitePRO S1100 Smart Thermostat is a Matter-certified Wi-Fi thermostat with a 5 in display, humidity, VOC and estimated CO2 monitoring and RedLINK 3.0 room sensors.

It suits Home Assistant users, with native support through Matter over Wi-Fi. HomeKit, Google Home and Alexa users reach it through an integration (the maker's cloud).

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Yes[1]
Wi-Fi cloud, via integration
Google Home
Yes[1]
Wi-Fi cloud, via integration
Alexa
Yes[1]
Wi-Fi cloud, via integration
SmartThings
Unknown
Unknown
Home Assistant
Yes[2][3]
Matter / Wi-Fi, native

Key facts

Honeywell Home ElitePRO S1100 Smart Thermostat facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[1]
Matter certified2025-07-25[3] (First certificate date.)
MatterYes[1][3]
Display5 in[1]
Redlink 3.0 room sensorsYes, RedLINK 3.0[1]
Air quality device outputsUp to 2[1]
Air quality monitoringHumidity, VOC and estimated CO2[1]
Video doorbell viewerunknown
StagesUp to 4 heat/2 cool heat pump, up to 3 heat/3 cool conventional[1]

Integration paths

How the Honeywell Home ElitePRO S1100 Smart Thermostat connects

2 pathsHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
Matter / Wi-Fi2.4 or 5 GHz Wi-Fi network[1][3]unknownunknown
Wi-Fi cloudFirst Alert app, Wi-Fi network[1]unknownunknown
About these columns
Requires
Hardware the path needs beyond the device and a controller.
Local
Yes when control on this path keeps working with the internet down.
Platforms
The platforms that work with the device on this path: Native (out of the box), Via integration (needs an add-on) or Not supported.

Home Assistant and Homey

Ways to add the Honeywell Home ElitePRO S1100 Smart Thermostat

1 routeHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantVia Matter[2][3] (Matter certified; Home Assistant does not name the model)matterMatter / Wi-Fi
  • Quality: No score[2][3]
  • IoT class: Local Push[2][3]
  • Works with Home Assistant: Not certified[2][3]
Model namedNone stated
About these columns
Level
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.

Releases

  1. 2025
    1. Certified Certified, not announced [3]

Certifications

Certification records

2 recordsHow facts are sourced: every cell cites its source below
ProgramCertificateCertified onTransportSpec / softwareSource
MatterFAM226312wi-fi1.3186.0[3]
MatterFAM226312wi-fi1.3605.355[3]

Cite this page

Honeywell Home ElitePRO S1100 Smart Thermostat. Smart Home Canon. https://smarthomecanon.com/devices/honeywell-home-elitepro-s1100-smart-thermostat. Last checked 2026-10-20.

Sources

  1. [1]
    MFRhoneywellhome.com / Honeywell Home: ElitePRO S1100 Smart Thermostat product page
    Accessed Back to text
  2. [2]
    DOChome-assistant.io / Home Assistant: Matter integration
    Accessed Back to text
  3. [3]
    CSAon.dcl.csa-iot.org / CSA certified-product database: ElitePRO S1100 THX1100W3/U (VID 4890 PID 4736)
    Accessed Back to text