Honeywell Home X2S Smart Thermostat review

The X2S is the lowest-cost way on this list to get a programmable thermostat you can control from your phone. It replaces Honeywell's RTH6580 and keeps things simple: you choose a 5-1-1 day, 5-2 day, 7-day or 1-week schedule, or turn scheduling off, and auto-away cuts heating or cooling while you are out. It connects over 2.4 or 5 GHz Wi-Fi to the Resideo Connect app and is Matter certified for Apple Home, with Alexa and Google Assistant support as well. It handles up to 2H/2C conventional systems, 2H/1C heat pumps with electric backup and hot water heat, and sends filter change and heat pump failure alerts. There is no learning, occupancy sensing or room sensor support, it needs a C wire, and it does not work with electric baseboard heat. For a straightforward schedule at $84.99, it is hard to beat on price. We compared documented features and published prices.

Who it is for

Homeowners on a tight budget who mostly want scheduling and phone control.

Price

$84.99 on the Honeywell Home US store when checked.

Honeywell Home X2S Smart Thermostat $84.99 Unit price
Quoted from the vendor pricing page on November 9, 2026.

Key features

• 5-1-1, 5-2, 7-day or 1-week scheduling, or no schedule at all
• Auto-away functionality
• Matter certified for Apple Home, plus Alexa and Google Assistant
• Dual-band Wi-Fi, 2.4 or 5 GHz
• Filter change and heat pump failure alerts

Strengths and weaknesses

• Strength: Cheapest thermostat on this list
• Strength: UWP wall plate for easier installation
• Strength: ENERGY STAR certified with utility rewards support
• Weakness: C wire required
• Weakness: No touchscreen, room sensors or learning features listed
• Weakness: Not for electric baseboard heat

Key facts

• Savings feature: Schedules and auto-away
• C wire: Required
• Wi-Fi: 2.4 or 5 GHz
• Warranty: 2 years

Where it ranks

Honeywell Home X2S Smart Thermostat is No. 9 in our Best Smart Thermostats verdict.