Best Iris Thermostats In September 2026

Below is the top 10 Best Iris Thermostats review to guide you buy the best product. Choose one of these products and your satisfaction is guaranteed!

To help you in your search, we have completed this list of the Best Iris Thermostats.

Top Rated Best Iris Thermostats Of 2026

Rank	Product Name	Score
1	Radio Thermostat Z-Wave Plus USNAP Module RTZW-02 Buy Now	9.7 Buy Now
2	Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Buy Now	9.5 Buy Now
3	IRIS Z-wave Thermostat ( CT101, Improved CT100 ) and ZigBee plug SPG800 combo Buy Now	9.1 Buy Now
4	GoControl Z-Wave Battery-Powered Smart Thermostat Buy Now	8.8 Buy Now
5	Shentesel TS-2000 Programmable Wireless LCD Home Smart Thermostat Socket - US Plug Buy Now	8.6 Buy Now
6	Radio Thermostat CT50 7-Day Programmable Thermostat (WiFi Enabled), iOS & Android App Controls Buy Now	8.3 Buy Now
7	GoControl Z-Wave Battery-Powered Smart Thermostat (Renewed) Buy Now	8.1 Buy Now
8	CT100 Thermostat, CT100, by Radio Thermostat Company of America, Cert ID: ZC08-12060007 Buy Now	7.8 Buy Now

9.7/10 our score

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The ct-series thermostat with an rtzw- 02 module is compatible with a broad range of z-wave certified devices from other manufacturers and can be controlled wirelessly with z-wave controllers supporting the thermostat general v2 device class.
The rtzw-02 provides two-way communication as part of a z-wave network
A z-wave enabled thermostat can be controlled remotely when connected to a z-wave controller
Add z-wave plus to your radio thermostat
Module is a plug in module that adds z-wave plus functionality to a ct-series thermostat

9.5/10 our score

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Editors choice best value smart thermostat by usa todays reviewed.com
Circulating fan: air circulation may improve indoor air quality by helping to regulate temperature and prevent buildup of particles and mold.
Usage reports: monitor current day and historical heating, cooling and fan runtimes right in the app.
Save about 23% on hvac energy*: the energy star certified sensi thermostat helps you save on your hvac energy costs, with features like geofencing, 7-day flexible scheduling, remote access and in-app system usage.
Extensive compatibility***: works with the hvac equipment found in most homes - a c-wire is required for heat-only, cool-only and heat pump systems. check system and router compatibility at sensi.emerson.com/compatibility
Control from anywhere: remotely control your home comfort from your smartphone or tablet using the sensi mobile app for android and ios devices.

9.1/10 our score

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The plug works with iris hubs only. not supported by smartthings and other hubs.
Iris z-wave thermostat ( ct101, improved ct100 ) and zigbee plug spg800 combo

8.8/10 our score

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Works on heat pump hvac systems with 3-stage heat & 2-stage cool
Supports z-wave flirs functionality. the gc-tbz48 works with most contemporary central hvac systems whether standard or heat pump which makes this thermostat a great solution for all retrofit or new construction needs. wall mount or mounts on single-gang junction box
Z-wave compatible - ver. 4.5.5
Works on standard hvac systems with 2-stage heat & 2-stage cool. usb firmware upgrade ability
Works with alexa for voice control (hub required, alexa device and hub sold separately).

8.6/10 our score

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C/f switchable. clock display: 12/24hr switchable. reset: one button back to factory mode.
Super big lcd with green backlight, easily operate in dark environment.
Programmable design,can set different target temperature in different time range.
Super long standby time, work with 2*aa batteries. automatically lock this device if no operation for 10 minutes.
Plug and play, no need installation.standard heating mode, standard cooling mode.

8.3/10 our score

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Optional 7 day programming with flexible settings allows full 7-day programming with up to 4-periods per day. puts energy saving at your finger tip with one-touch away button providing savings on annual heating and cooling costs.
Importantthis thermostat requires a c wire to bring 24vac power to wifi module
Important- wi-fi connectivity feature initial setup of the wifi module requires setup with ios app, osx or windows computer. once provisioned and registered the thermostat is controlled via your ios or android smartphone using required app.
Easy installation: dual powered by battery (3-aa batteries), or system power (c-wire). c-wire needed for proper wifi installation. large touchscreen digital display with backlight easy to read in various lighting conditions.
For use with various kind of hvac systems: including single stage, multi-stage and heat pump (up to 2-stage heat, 2-stage cool, with aux. or emergency heat

8.1/10 our score

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Supports z-wave flirs functionality. the gc-tbz48 works with most contemporary central hvac systems whether standard or heat pump which makes this thermostat a great solution for all retrofit or new construction needs. wall mount or mounts on single-gang junction box
Works on standard hvac systems with 2-stage heat & 2-stage cool. usb firmware upgrade ability
Z-wave compatible - ver. 4.5.5
Works with alexa for voice control (hub required, alexa device and hub sold separately).
Works on heat pump hvac systems with 3-stage heat & 2-stage cool

7.8/10 our score

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Frequency region: u.s./canada/mexico, z-wave library version: 5.03
Z-wave certification id: zc08-12060007
Device categories: thermostats
Supported command classes: configuration,clock,indicator,battery,multilevel sensor,multi channel,association,thermostat: (,setpoint)