The Best Z-Wave Thermostats

Every Z-Wave thermostat we found on Amazon, ranked.

Z-Wave thermostats are rare now; most makers moved to Wi-Fi. We scored the ones on Amazon on rating, review volume, and features. Two are built mainly for security panels.

Prices, ratings, and review counts captured from Amazon on 2026-10-04.

Our picks

Best Overall

Honeywell

Honeywell T6 Pro Z-Wave (TH6320ZW2003)

4.2 (725)

Honeywell's T6 Pro Z-Wave, with 725 reviews and wide support across Z-Wave hubs.

$152.50

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Best for Security Panels

2GIG

2GIG STZ1-345

3.8 (30)

A 700 Series thermostat built for 2GIG GC2, GC3, and GC2e alarm panels.

$89.99

View on Amazon →

Side-by-side

Swipe the table sideways to see every column.

#	Thermostat	Price	Rating	Reviews	Chip	Made for	Extras	C-wire	Score
1	Honeywell T6 Pro Z-Wave (TH6320ZW2003)	$152.50	4.2	725	Z-Wave Plus	Z-Wave hubs and security systems	Programmable	Not stated in bullets	80
2	2GIG STZ-1	$89.99	4.7	7	Z-Wave Plus	Z-Wave hubs and 2GIG panels	Humidity sensing and control	Not stated in bullets	77
3	2GIG STZ1-345	$89.99	3.8	30	700 Series	2GIG GC2, GC3, GC2e security panels	None listed	Listed	50

Works with: hover or tap an icon for the system name. A system is shown when it supports the product directly or through the hub the listing requires.

The full ranking

Scored out of 100: 45% customer rating, 30% review volume, 25% features.

Best Overall

Honeywell

Honeywell TH6320ZW2003 T6 Pro Series Z-Wave Stat Thermostat &, Smart Home

4.2 725 reviews

Score 80/100

$152.50

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100+ bought in past month

The standard Z-Wave thermostat, widely used with Z-Wave hubs and alarm systems.

Z-Wave chip: Z-Wave Plus
Made for: Z-Wave hubs and security systems
Extras: Programmable
C-wire: Not stated in bullets

Pros

725 reviews at 4.2 stars
Works with most Z-Wave controllers
100+ bought in the past month

Cons

$152.50 from a third-party seller
Thin listing
No remote sensors

2GIG

2GIG Smart Z-Wave Plus Model 2GIG-STZ-1 Programmable Thermostat, Humidity Sensing and Control, SmartStart Support, S2 Authentication Security, Fixed Format Display, Auto/On Fan Mode

4.7 7 reviews

Score 77/100

$89.99

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A programmable Z-Wave thermostat with humidity sensing. Very few reviews.

Z-Wave chip: Z-Wave Plus
Made for: Z-Wave hubs and 2GIG panels
Extras: Humidity sensing and control
C-wire: Not stated in bullets

Pros

Humidity sensing and control
Programmable
4.7 stars

Cons

Only 7 reviews
Sold by a reseller
Thin listing

Best for Security Panels

2GIG

2GIG STZ1-345 Z-Wave 700 Thermostat for Security Panels GC2, GC3, GC2e

3.8 30 reviews

Score 50/100

$89.99

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A 700 Series thermostat designed for 2GIG alarm panels.

Z-Wave chip: 700 Series
Made for: 2GIG GC2, GC3, GC2e security panels
Extras: None listed
C-wire: Listed

Pros

700 Series chip
Built for 2GIG GC2, GC3, and GC2e panels
$89.99

Cons

3.8 stars from 30 reviews
Made mainly for security panels
Sold by a reseller

Buyer's guide

Do I need a C-wire?

Most smart thermostats need constant power from a C (common) wire. Some include a power adapter for homes without one, and a few run on batteries. Check your current thermostat's wiring before you buy.

Will it work with my heating and cooling system?

Most smart thermostats handle standard 24 V forced-air and heat pump systems. Line-voltage electric baseboard heaters need a different, line-voltage thermostat. Check the maker's compatibility checker before buying.

Do remote sensors matter?

If some rooms run hotter or colder than where the thermostat hangs, yes. Remote room sensors let the thermostat average temperatures or focus on the rooms you're using.

More Z-Wave reviews

Z-Wave light switches →Z-Wave dimmers →Z-Wave smart plugs →Z-Wave door and window sensors →Z-Wave motion sensors →Z-Wave leak sensors →Z-Wave smart locks →

Thermostats on other protocols

Wi-Fi thermostats →Matter thermostats →