Honeywell T5 vs T6

Honeywell T5 vs T6 – Check the differences & Get the Best One!


Honeywell T5 vs T6Honeywell T5 and T6 are two of the amazing thermostat for any home, but T6 is slightly better than the older version. So, you can select T6 as it contains more improved functions. Let’s know those unique functions that made it the best one.

What Makes Honeywell T6 Best?

  • Honeywell T6 is a low voltage, digital plus a communicating thermostat style. Also, it is programmable, while T5 is only a programmable device.
  • You will get 2 heat and cool systems from this device, including 2 heat and 1 heat pump. Besides, the Honeywell T5 thermostat offers 1 cool/heat stage.
  • It is equipped with a 5-year warranty; in contrast, T5 comes with a 2-year warranty. Since T6 comes with a better warranty, you can be tension-free about your thermostat.
  • Honeywell T6 allows you to use the battery for the power, and it maintains safety as well. But T5 required C-wire to power the thermostat that could be a little bit of hassle.

These were the unique features of T6 that ensure you provide quality service. Honeywell T5 is also a good choice, but these things made T6 a better choice. If you want to select one from these two, press the buttons below.


Similar Features

  • Honeywell T5 and T6 are compatible with the app and Alexa voice commands.
  • They are built with a touchscreen display that allows you to operate the device efficiently.
  •  Both thermostats required a 2.4Ghz wifi range.
  • These two are Energy Star Certified, so the devices will save energy.
  • Honeywell T5 and T6 use Geofencing technology that tracks your smartphone’s location.
  • They have an auto change function, and the device will change the temperature according to the weather.
SpecificationsHoneywell T5Honeywell T6
Editor’s Rating 4.6 out of 54.7 out of 5 
Dimension 4 x 4 x 1.25 inches5 x 2.3 x 6 inches
Weight 1.76 ounces0.25 Pounds
Thermostat TypeProgrammableCommunicating, Digital, Low Voltage, Programmable
C-Wire Required Yes No 
Display Touchscreen Touchscreen 
WiFi Specifications2.4GHz range2.4GHz range
ColorBlack White
Thermostat Stages1 cool/heat stages 2 Heat/1 Cool Heat Pumps, 2 Heat/2 Cool Conventional Systems
Alexa Compatible Yes Yes 
Geofencing TechnologyYes Yes 
Honeywell Home AppYes Yes 
Power SupplyHardwiredHardwired, Battery Powered
Energy Star CertifiedYes Yes 
Warranty 2-years 5-years 

Differences and Similarities Between the Honeywell T5 vs T6

Simple Set-Up 

Honeywell T5 and T6 are straightforward to set up, plus they offer a DIY installation process. Moreover, the devices include a professional installation manual. The T5 required C-wire; otherwise, the unit will not work while the T6 doesn’t need C-wire; it also lets the battery use the device.


The T6 is a smart plus lightweight thermostat than Honeywell T5. The T5 is stylish, and it comes in black color. It is 4 inches long, 4 inches wide, and 1.25 inches high, plus the weight is 1.76 ounces. Besides, the Honeywell T6 is 5 x 2.3 x 6 inches (L x W x H), and the device is 0.25 Pounds. For people seeking a stylish one, T5 is the right choice but if you need a sleek one, consider the T6.

Thermostat Stages 

When it comes to the thermostat stages, the T6 is the winner. Since the device has some extra temperature features, you will get 2 Heat/2 Cool Conventional Systems and 1 cool and 2 heat pumps with this. While the Honeywell T5 comes with only 1 cool and heat stage. Hence, to get your desired temperature, the T6 is the best option.


Honeywell T5 and T6 are programmable thermostats, so you can schedule the devices to when to start work and when to shut down. They offer you 7 days scheduling function, and once you set schedule mode, the device will automatically set the temperature for comfort. Also, they use geofence technology that uses the location of your smartphone to control temperature.

Smart Control Function 

You can smartly control both Honeywell T5 and T6 since these are compatible with the Honeywell Home App. The app can be installed on your Android and iOS as well. The app will notify you when it needs to change filters. Moreover, the smart control will also change the temperature automatically so that you achieve your desired temperature. Furthermore, they are compatible with Alexa’s voice, and if you want to use them, you’ve to purchase them separately. The smart control feature helps you save very convenient energy.


Honeywell T5 comes with a 2-year warranty, and the warranty time will cover any defects in the thermostats. But the T6 provides the users a 5-years warranty; if you choose this one you will get 3 years more warranty. So I suggest you consider the best thermostat for your home that will last longer.

Final Words 

It would be best to consider a thermostat that fits your life; that could be a little tough for you to select the best one. You should purchase one that will give you greater comfort plus effectiveness, and Honeywell T6 could be the right choice. Compared to the T5, it includes some amazing functions, so you can rely on this device. But if you seek a smart thermostat plus doesn’t require these handy functions, then T5 could be your choice.

Frequently Asked Asked Questions about Honeywell T5 vs T6

Can Honeywell T5 install without C-wire?

No, the T5 required C-wire to power the thermostat, but the T6 doesn’t require C-wire; instead, you can use the battery to power the device.

Are they programmable thermostats?

Yes, the devices are 7 days programmable; you can schedule the devices to do the work.

Do they provide a warranty?

Honeywell T5 provides a 2-year warranty; on the other hand, the T6 comes with a 5-year warranty.

Are they Alexa compatible?

Both Honeywell T5 and T6 are Alexa compatible, but you need to purchase the Alexa device separately.

Will they cover multiple rooms?

Yes, these devices will cover your whole house; also, they can focus only on one room if you want.

Learn more comparisons about thermostats.

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