017 known options · 5 fully checked
Value conventional 24 V controls
Lower-cost conventional relay controls with exact stage, equipment, power and remote-sensor exclusions
Current market guide
Premium residential smart thermostats and HVAC controls
Current residential conventional, proprietary communicating, line-voltage, radiant-floor and mini-split retrofit controls, with exact topology, stages, heat-pump, auxiliary, dual-fuel, C-wire, sensors, zoning, app, cloud, privacy, offline, demand-response, installation, equipment-protection and service boundaries
Your place in the market
Start with the questions that remove bad fits
Start with equipment topology, voltage, terminal map, stages, heat-pump and auxiliary behavior before comparing apps
01
Before the shortlist
The first four answers do most of the work
A useful ranking starts only after the constraints specific to this market are clear.
- 01
Is the existing control conventional 24 V, proprietary communicating, 120/240 V line voltage, radiant floor or a mini-split infrared remote?
- 02
Which heating, cooling, fan, heat-pump, auxiliary, emergency-heat, dual-fuel and indoor-air accessory stages must the new control support?
- 03
Is a C-wire present and valid, and are room sensors, actual damper zoning, multi-head coordination or local offline schedules required?
- 04
Who will confirm equipment settings, installation, utility-program consent, account transfer, privacy, service and a safe manual fallback?
02
Market education
Read only as far as you need
The path changes with your research stage. Each guide is built around a decision that removes part of the market.
01Start here
Identify the HVAC topology before choosing a thermostat
Separate conventional terminals, communicating buses, line voltage and infrared controls before comparing features
02comparingCompare sensors, zoning, cloud and offline control
Distinguish room prioritization, real equipment zones, shared mini-split limits and account-dependent services
03readyVerify wiring, settings and safe fallback
Commission every stage, delay and auxiliary transition while preserving local control and equipment protections
03
Buying paths
The shortlist covers different ways to own the product
A useful market view needs a credible answer for each common budget, setup, and ownership pattern. These are the paths represented in the current desk.
027 known options · 5 fully checked
Premium multistage 24 V controls
Higher-stage conventional controls with room sensing or IAQ accessory paths that remain terminal- and equipment-specific
0314 known options · 10 fully checked
Heat pump, auxiliary and dual-fuel control
Conventional heat-pump branches whose O/B, auxiliary, emergency, balance-point, fan and fuel logic require exact commissioning
048 known options · 4 fully checked
Room sensors and zoning boundary
Remote-sensor and communicating-zone branches kept distinct from true damper control and equipment capacity
053 known options · 2 fully checked
Line-voltage electric heat
Direct electric-heat controls whose voltage, conductor topology, load, breaker, GFCI and room-circuit limits remain explicit
063 known options · 3 fully checked
Mini-split infrared retrofit
IR remote replacements whose line of sight, state synchronization, USB power and native appliance logic remain controlling
075 known options · 0 fully checked
Proprietary communicating dealer controls
Current variable-capacity and ecosystem controls retained at identity depth because equipment pairing, zoning, installed price and service are dealer configured
0814 known options · 10 fully checked
C-wire, adapter and power fit
Low-voltage branches compared by measured transformer power, C-wire, PEK, batteries or documented adapter path rather than wire color
0925 known options · 15 fully checked
App, cloud, local control and demand response
Every tracked control retains account, privacy, remote access, offline operation, firmware, utility enrollment and opt-out boundaries
1025 known options · 15 fully checked
Installation, equipment protection and outcomes
Every tracked control retains wiring, setup, installer, cycling, freeze, humidity, comfort, savings, indoor-air and equipment-protection limits
04
Current coverage
The products with a full market view
These pages connect current facts, alternatives, source history and a stated conclusion. The wider market follows below.
ProductPositionCurrent stateDepth
ecobee
Smart Thermostat Premium
EB-STATE6-01$259.99 current U.S. direct priceThe flexible conventional reference
Current premium conventional multistage thermostat with included room sensorcurrent
12 sources15 current facts
Open page ecobee
Smart Thermostat Essential
EB-STATE7-01$139.99 current U.S. direct priceThe ecobee budget reference
Current budget ecobee conventional controlcurrent
12 sources15 current facts
Open page Google
Nest Learning Thermostat, 4th gen
GA05169-US$279.99 regular U.S. direct priceThe Google Home premium choice
Current fourth-generation learning thermostat with included sensorcurrent
12 sources15 current facts
Open page Google
Nest Thermostat
GA02081-US$129.99 current U.S. direct priceThe simple Google Home choice
Current value Google Home thermostatcurrent
12 sources15 current facts
Open page Amazon
Amazon Smart Thermostat
S6ED3R$79.99 current U.S. retail priceThe Alexa budget choice
Current low-cost Alexa-first thermostatcurrent
12 sources15 current facts
Open page Copeland
Sensi Touch 2 Smart Thermostat
ST76$209.99 current U.S. MSRPThe high-stage Sensi choice
Current high-stage Sensi touchscreen controlcurrent
12 sources15 current facts
Open page Copeland
Sensi Lite Smart Thermostat
ST25$89.99 current U.S. MSRPThe bounded no-C-wire value
Current budget Sensi control with selective no-C-wire supportcurrent
12 sources15 current facts
Open page Resideo
Honeywell Home X8S Smart Thermostat
X8VMC8B/U$219.99 current U.S. direct priceThe wall-display reference
Current large-display premium Honeywell Home controlcurrent
12 sources15 current facts
Open page Resideo
Honeywell Home X2S Smart Thermostat
RTH2CWF/U$79.99 current U.S. direct priceThe straightforward button-and-app value
Current button-operated Honeywell Home value controlcurrent
12 sources15 current facts
Open page Bosch Home Comfort
Connected Control BCC110
7738007442$189 current U.S. retail priceThe Bosch-supported conventional specialist
Current high-stage conventional Bosch-branded controlcurrent
12 sources15 current facts
Open page Mysa
Smart Thermostat for Electric Baseboard Heaters V2
MYSA-V2-0$159 current U.S. direct priceThe premium electric-baseboard reference
Current line-voltage electric-baseboard controlcurrent
12 sources15 current facts
Open page Mysa
Smart Thermostat for Electric In-Floor Heating
IN-FLOOR V1-0$199 current U.S. direct priceThe connected electric-floor reference
Current electric-floor control with Class A GFCIcurrent
12 sources15 current facts
Open page Mysa
Smart Thermostat for Mini-Splits
AC-V1-0$139 current U.S. direct priceThe Mysa ecosystem mini-split bridge
Current plug-in IR mini-split controllercurrent
12 sources15 current facts
Open page Cielo WiGle
Cielo Breez Max
BM101WA$122.88 current U.S. retail priceThe full-display IR reference
Current display-and-app IR mini-split controllercurrent
12 sources15 current facts
Open page Sensibo
Sensibo Air PRO
SEN-AIR-PRO$129 current U.S. direct sale priceThe compact IR and air-context choice
Current IR climate controller with bounded air-quality sensingcurrent
12 sources15 current facts
Open page 05
Wider market
25 products in the working index
Known models remain searchable while the deeper work is underway. They do not receive a recommendation until price, support, ownership and direct comparisons are checked.
ProductMarket positionCurrent stateResearch
ecobee
Smart Thermostat Enhanced
EB-STATE6L-01Current mid-tier conventional ecobee controlA 24 VAC ecobee between Essential and Premium with occupancy sensing, PEK path and optional SmartSensors, retained at identity depth to avoid over-representing one brand tier stack
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Copeland
Sensi Smart Thermostat
ST55Current button-operated conventional Sensi controlA mature 4H/2C-capable conventional control with broad no-C-wire eligibility, retained as a distinct local-button branch rather than a Touch 2 color or bundle
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Mysa
Smart Thermostat for Central Cooling and Heating
CENTRAL V1Current Matter-capable central HVAC thermostatA new 24 V Mysa control for common conventional and heat-pump systems with a documented adapter path, retained at identity depth while independent and long-owner evidence develops
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Sinopé Technologies
Smart Wi-Fi Thermostat for Electric Baseboards
TH1124WFCurrent 4000 W line-voltage electric-heat controlA 120/208/240 V direct Wi-Fi TRIAC thermostat for compatible resistive heat, retained at identity depth because the current direct page is CAD-denominated and exact U.S. price evidence is not clean enough for a defended dossier
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Carrier
Infinity System Control
SYSTXCCWIC01-CCurrent proprietary Carrier communicating and zoning controlA dealer-configured control for compatible Infinity communicating equipment and up to eight zones, materially different from conventional relay thermostats
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Lennox
S40 Smart Thermostat
22V24Current proprietary Lennox communicating control with limited availabilityA Lennox communicating system controller with room-sensor and zoning paths, retained at identity depth because dealer configuration, equipment pairing and current limited availability define the purchase
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Trane
Trane LINK UX360 Smart Thermostat
LINK-UX360-TSTATCurrent Trane LINK communicating and zoning controlA dealer-installed control for compatible LINK variable-speed equipment and zoning, whose value and price are inseparable from the complete Trane system
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Daikin Comfort Technologies
Daikin One+ Smart Thermostat
DTST-CWBSA-NI-BCurrent proprietary Daikin communicating controlThe current One+ control for supported Daikin communicating systems, with exact 2026 model and spec retained separately from older A-suffix hardware
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record Rheem
EcoNet Smart Thermostat
RETST800SYSCurrent Rheem EcoNet equipment-system controlA system control for compatible Rheem HVAC and water-heating equipment, retained as an equipment ecosystem rather than a generic conventional thermostat
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record AprilAire
S86WMUPR Wi-Fi Thermostat
S86WMUPRCurrent universal conventional thermostat with IAQ equipment controlA professional conventional thermostat with humidity and ventilation integration, retained at identity depth pending a stable public exact-system U.S. price and broader owner evidence
currentOfficial source checked Aug 19
Market recordFull comparison in progress
Open record 06
Market language
The terms a useful comparison should define
- C-wire
- The common side of a low-voltage HVAC transformer that can provide continuous thermostat power; its presence and compatibility must be verified at the equipment, not inferred from color
- Communicating control
- A proprietary digital controller that exchanges richer equipment commands and status than ordinary relay terminals and usually must match the HVAC brand and system generation
- Auxiliary heat
- Supplemental heat used with a heat pump under configured conditions; poor lockouts, thresholds or fuel setup can increase cost or produce improper operation
- Room sensor
- A remote temperature or occupancy input that can influence one HVAC zone; it does not create independent duct zones without dampers and a compatible zone-control system
Have a model or link already?