Winner
Updated October 2026
Data from Amazon and official Cielo and Honeywell Home sites.
2026 verdict
The Cielo Breez Max wins this thermostat comparison against the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, priced lower, rated higher and offering wider connectivity through its Bluetooth pairing.
The two are not built for the same job: the Honeywell is a wired thermostat for a ducted furnace or heat pump with a large customizable color touchscreen and Smart Response learning, while the Cielo Breez Max reads infrared to control a ductless mini-split, window unit or portable air conditioner instead. Both add built-in temperature and humidity sensing, energy-saving features and voice control through Alexa and Google Assistant. Homeowners with a standard ducted system who want a large, colorful touchscreen and Smart Response scheduling should pick the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, while anyone cooling or heating a room with a mini-split, window unit or portable air conditioner needs the Cielo Breez Max instead, since the Honeywell has no way to run that kind of equipment.
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| Feature | Cielo Breez Max | Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat | Winner |
|---|---|---|---|
| Price | $114.30 | $123.49 | Cielo Breez Max |
| Rating | 4.6 | 4.3 | Cielo Breez Max |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi | Cielo Breez Max |
| Warranty | 1 year | 1 year | Tie |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Tie |
| Screen | YES | YES | Tie |
| Sensors | Temperature, Humidity | Temperature, Humidity | Tie |
| Alerts | None | Temperature Alerts | Tie |
| Energy Savings | YES | YES | Tie |
| System Health Monitor | YES | YES | Tie |
| Voice Control | YES | YES | Tie |
| Speaker | NO | NO | Tie |
What the differences mean
What each thermostat actually controls
The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is a wired thermostat for a ducted furnace or heat pump. The Cielo Breez Max is an infrared controller for a ductless mini-split, window unit or portable air conditioner, with no wiring into a furnace at all.
Connectivity
The Cielo Breez Max uses Bluetooth for pairing during setup, something the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat does not support; the Honeywell connects over Wi-Fi only.
Wiring and power
The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat requires a common wire from the HVAC system. The Cielo Breez Max powers from a bundled USB adapter or from 24V AC wiring, so it fits both a plug-in retrofit and a wired install with no C-wire requirement.
Which one to buy if
- you have a standard ducted furnace or heat pump and want a large color touchscreen
The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is built to wire directly into that kind of system; the Cielo Breez Max cannot control it at all.
- you are cooling or heating a room with a mini-split, window unit or portable air conditioner
The Cielo Breez Max is an infrared controller made exactly for that equipment, which the Honeywell has no way to run.
- there is no common wire at the thermostat location
The Cielo Breez Max runs off a bundled USB adapter, while the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat requires a C-wire.
Winner
$114.30
- + Price: $114.30
- + Rating: 4.6
- + Connectivity: 2.4 GHz WiFi, Bluetooth
31% OFF
$123.49
$179.99
- - Price: $123.49 vs $114.30
- - Rating: 4.3 vs 4.6
What owners say
Owners of both thermostats report real reliability once installed. Cielo Breez Max owners describe getting from box to a working thermostat in minutes thanks to auto remote detection, and repeatedly credit Cielo's support team with fixing a stubborn remote profile or finishing setup remotely; their honest caveat is that the built-in sensor can read a couple of degrees off the room until it is calibrated in the app, and the infrared link needs a clear line of sight to the indoor unit. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat owners compare it directly against thermostats that failed within a year or two and say this one simply keeps running, and they single out the large color touchscreen with outdoor temperature and humidity readouts; their complaint is that remote control depends on Resideo's servers, so a bad day on that cloud stops the app even though the thermostat keeps following its own schedule.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Cielo Breez Max
- Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Loading price history...
Frequently Asked Questions
Which is better overall, the Cielo Breez Max or the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?
The Cielo Breez Max wins overall, priced lower, rated higher and offering wider connectivity. The two are built for different kinds of HVAC equipment, so the honest answer also depends on what you are trying to control.
What is the biggest structural difference between the two?
The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is a wired thermostat for a ducted furnace or heat pump. The Cielo Breez Max is an infrared controller for a ductless mini-split, window unit or portable air conditioner, with no wiring into a furnace at all.
Does the Cielo Breez Max need a common wire like the Honeywell does?
No. The Cielo Breez Max can power from its included USB adapter, so it works as a plug-in retrofit with no C-wire required. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat needs a common wire from the HVAC system.
Does the Cielo Breez Max have Bluetooth?
Yes, the Cielo Breez Max uses Bluetooth for pairing during setup, something the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat does not support; the Honeywell connects over Wi-Fi only.
Who should buy the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?
Homeowners with a standard ducted furnace or heat pump who want a large, customizable color touchscreen, Smart Response learning and outdoor weather on the display.
Who should buy the Cielo Breez Max?
Anyone cooling or heating a room with a ductless mini-split, window unit or portable air conditioner that came with an infrared remote, since the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat cannot control that kind of system.
Full comparison table
Compare all 23 Thermostats side by side
You are looking at two of them. The full table lines up all Thermostats in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 23 Thermostats
- 51 specs compared
- 47 filters
- Cielo
Breez Max
$114.30 
SonoffThermostat Core
Unavailable
SensiTouch smart thermostat
Last priceAug 28, 2026$159.99
Unavailable
SensiSmart thermostat
25% OFF$129.99$97.76
EcobeeSmart Thermostat Enhanced
8% OFF$199.99$184.96
GoogleNest Learning Thermostat
Last price€249.00
Unavailable
GoogleNest Learning Thermostat (4th gen)
21% OFF$279.99$220.00
CieloBreez Eco
$79.00- Honeywell Home
RTH9585WF Wi-Fi Smart Color Thermostat
31% OFF$179.99$123.49 
EcobeeSmart Thermostat Premium
$249.00
Honeywell HomeT9 Smart Thermostat
Last priceOct 6, 2026$209.00
Unavailable
Honeywell HomeT5 Smart Thermostat
30% OFF$109.99$76.99
SensiTouch 2 smart thermostat
$186.99
AmazonSmart Thermostat
$120.85
Honeywell HomeX7S Smart Thermostat
$194.89
EcobeeSmart Thermostat Essential
$139.99
Honeywell HomeX2S Smart Thermostat
27% OFF$84.99$61.91
AqaraThermostat Hub W200
$159.99
GoogleNest Thermostat
34% OFF$129.99$85.49
Honeywell HomeX8S Smart Thermostat
6% OFF$259.99$245.00
- ThermostatsHoneywell Home
RTH9585WF Wi-Fi Smart Color Thermostat
4.3(20,117)31% OFF$179.99$123.49 - ThermostatsHoneywell Home
T5 Smart Thermostat
4.3(1,523)30% OFF$109.99$76.99 - ThermostatsHoneywell Home
T9 Smart Thermostat
4.3(2,982)Last priceOct 6, 2026$209.00
Unavailable - ThermostatsHoneywell Home
X2S Smart Thermostat
4.2(415)27% OFF$84.99$61.91 - ThermostatsHoneywell Home
X7S Smart Thermostat
4.3(92)$194.89 - ThermostatsHoneywell Home
X8S Smart Thermostat
4.1(152)6% OFF$259.99$245.00 
Water Leak SensorsHoneywell HomeL1 WiFi Water Leak and Freeze Detector
3.7(71)$68.00