Compare Ecobee Smart Thermostat Premium vs Honeywell Home X2S

Ecobee Smart Thermostat Premium

One reviewer had a poor experience using the occupancy sensors for Home automations, saying their tests did not work.

1 supporting review · Limited evidence

Honeywell Home X2S

The lack of aggressive in-home monitoring can actually suit buyers who want a simpler thermostat. One owner specifically preferred that the X2S not monitor the house or make unwanted automatic changes.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

Reviewers liked that Ecobee includes a power extender/C-wire adapter option, especially for setups without a common wire.

2 supporting reviews

Honeywell Home X2S

A buyer without the needed power wiring was frustrated that the required adapter was sold separately rather than included in the box.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

Energy reports are a standout strength for data-minded reviewers, helping explain bills, track usage, and identify energy patterns.

4 supporting reviews

Honeywell Home X2S

Energy reporting is basic and often disappointing for shoppers who want detailed analytics. One rental owner likes the daily boiler-runtime report, but others criticize delayed, incomplete, or inaccurate run-time metrics.

4 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

The included Room Sensor is one of the most consistently praised features, helping with room-level temperature readings and comfort control.

10 supporting reviews

Honeywell Home X2S

Room-sensor support is a clear limitation: the X2S does not work with Honeywell remote room sensors. Some buyers accept that tradeoff at this price, while others consider it a major reason to choose a higher-end model.

5 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

The power extender support was viewed positively because it helps installs where a common wire is not already present.

1 supporting review · Limited evidence

Honeywell Home X2S

The C-wire requirement is one of the clearest installation caveats. Some homes need new wiring or an adapter, though several owners found those workarounds manageable.

16 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Multi-room balancing is praised when sensors are placed well, but one reviewer found it limited by sensor range and the need for more Ecobee sensors.

6 supporting reviews

Honeywell Home X2S

Multi-room results are mixed. Scheduled blower circulation helped stale rooms dramatically in one home, while a temperature-reading problem in another left the rest of the house cold.

2 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Away mode evidence is mixed, with reviewers praising occupancy-based adjustment but one reviewer saying the thermostat falsely treated the home as empty.

3 supporting reviews · Mixed evidence

Honeywell Home X2S

Vacation and away controls are consistently useful, including schedules created after leaving home. Owners report successful remote checks, comfortable returns, and less worry about wasting heat or cooling while away.

5 supporting reviews

Ecobee Smart Thermostat Premium

Fan controls are considered useful and easy to access, with one reviewer emphasizing that turning the fan on or off takes only a couple of taps.

3 supporting reviews

Honeywell Home X2S

Fan control is useful both for ordinary on/off operation and scheduled circulation that can freshen stale rooms. Hubitat-based fan control failed for one owner.

3 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Auto-schedule evidence is mixed: one review praises seamless adaptation, another describes pattern-based scheduling, and one says Nest's learning schedule is smarter.

3 supporting reviews

Honeywell Home X2S

The X2S suits people who want control without an overbearing learning system. One owner found its automatic learning improved, while another specifically liked that it does not force a learning-thermostat experience.

2 supporting reviews

Ecobee Smart Thermostat Premium

Scheduling is repeatedly praised as flexible, customizable, and easy to tune for different times, days, and energy goals.

4 supporting reviews

Honeywell Home X2S

Daily, weekly, weekday/weekend, and vacation scheduling are broadly useful and often easy to program. Complaints include awkward editing, incorrect saved temperatures, and setups that behave poorly unless configured carefully.

18 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

One reviewer liked the included trim plate for covering wall blemishes behind the thermostat.

1 supporting review · Limited evidence

Honeywell Home X2S

The Honeywell UWP connection makes swaps and future upgrades especially easy for compatible homes. One used unit had broken retaining clips and would not stay secured to the wall plate.

4 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

One reviewer credited Ecobee with making a furnace work properly after a previous thermostat failed with the system.

1 supporting review · Limited evidence

Honeywell Home X2S

Conventional HVAC support is presented as a strong fit for common home systems, with flexible staging that covers typical heating and cooling setups.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

Humidity sensing is viewed as a useful input for comfort and energy behavior, with reviewers calling it handy and effective.

3 supporting reviews

Honeywell Home X2S

Humidity readout is a small but well-liked feature. Owners appreciate being able to check indoor humidity in the app, including while away from home.

3 supporting reviews

Ecobee Smart Thermostat Premium

On-device controls are repeatedly described as simpler, more modern, and easier to navigate than older interfaces.

5 supporting reviews

Honeywell Home X2S

Physical buttons are a major usability strength for people who prefer straightforward controls over touchscreens. Most find them simple, though deeper menu navigation can become tedious.

15 supporting reviews

Ecobee Smart Thermostat Premium

Reviewers describe broad HVAC compatibility as a strength, including one case where Ecobee solved a furnace problem and another noting expanded wiring capability for more systems.

3 supporting reviews

Honeywell Home X2S

Compatibility is broad enough for typical forced-air, heat-pump, and boiler setups. A boiler owner and an expert both found the supported system range practical.

2 supporting reviews

Ecobee Smart Thermostat Premium

Shared household access is positively noted as a way to give additional family members control.

1 supporting review · Limited evidence

Honeywell Home X2S

Shared access works well for households and multi-user properties. One church installation specifically praised the ability to share the app with multiple users.

2 supporting reviews

Ecobee Smart Thermostat Premium

Temperature accuracy is praised through SmartSensor control and room-specific readings that reduce mismatch between hallway and room temperatures.

3 supporting reviews

Honeywell Home X2S

Temperature accuracy is inconsistent across the reports. One multi-unit installation found the thermostats accurate, but other owners saw schedule errors or readings two to five degrees high.

4 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Reviewers consistently praised the larger, brighter, higher-quality display for being easier to see and read.

7 supporting reviews

Honeywell Home X2S

The monochrome display is widely praised for clear, easy-to-read temperature information, especially when lit. The main caveat is that some secondary text can look small to older eyes.

8 supporting reviews

Ecobee Smart Thermostat Premium

Voice control gets mixed but mostly positive feedback: reviewers like having Siri/Alexa access, while one criticizes the built-in speaker as weak.

7 supporting reviews

Honeywell Home X2S

Voice control is one of the shakier smart features. Siri missed the requested temperature for one reviewer, while multiple owners reported Alexa commands unavailable despite advertised compatibility.

4 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Reviewers strongly value the broad smart-home compatibility, especially support across HomeKit, Alexa, Google, Siri, and broader smart-home ecosystems.

6 supporting reviews

Honeywell Home X2S

Broad ecosystem ambitions are a selling point, especially through Matter, but real-world compatibility is uneven. Home Assistant can work very well for some users while Hubitat, older AlarmNet, and other integrations can fail badly.

8 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

The app is a major strength across reviews, with praise for intuitive controls, remote access, schedule setup, and consistent design with the thermostat UI.

7 supporting reviews

Honeywell Home X2S

The First Alert app is easy and reliable for many owners, especially for temperature changes, schedules, and setup. Others dislike the app branding, configuration flow, limited features, or confusing migration from older Honeywell apps.

37 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

HomeKit support is mostly praised as useful and seamless, though one reviewer found the initial HomeKit pairing process unclear.

4 supporting reviews

Honeywell Home X2S

Apple Home control generally works, and several owners found iPhone linking easy. Setup can be hidden behind the Matter menu, Home controls are basic, and one buyer was surprised by the need for a home hub.

5 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Alexa support is viewed positively, with reviewers praising built-in Alexa, easy pairing, and voice-assistant compatibility.

6 supporting reviews

Honeywell Home X2S

Alexa support is inconsistent. Some owners have it working, but others could not link Alexa at all after the app transition, and another found setup difficult.

5 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Time-of-use support is praised by one reviewer as a way to save money by shifting AC use around peak pricing.

1 supporting review · Limited evidence

Honeywell Home X2S

Utility-program support can add real value, with owners using rebates or savings programs alongside normal schedules and app control. Enrollment can be a little finicky inside the app.

2 supporting reviews

Ecobee Smart Thermostat Premium

Matter support is treated as a future-looking plus, with one reviewer calling the possible Thread/Matter path exciting and more future-proof.

1 supporting review · Limited evidence

Honeywell Home X2S

Matter is usually viewed as a strong feature that broadens platform choice and may reduce dependence on one cloud service. One Home Assistant owner reported a failed Honeywell Matter implementation, so interoperability is not flawless.

7 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Most reviewers found installation easy or straightforward, though one warned that the app missed an important power switch in their home and another said wiring can be tricky for newcomers.

7 supporting reviews

Honeywell Home X2S

Installation is one of the X2S’s biggest strengths, with many owners calling the swap unusually easy and fast. More complex wiring or heat-pump configurations can still require extra work or professional help.

36 supporting reviews

Ecobee Smart Thermostat Premium

Remote control is praised as convenient and dependable, especially for changing temperature from elsewhere in the home or while away.

5 supporting reviews

Honeywell Home X2S

Remote temperature monitoring and adjustment are among the most consistently praised features, especially for vacations, garages, churches, and rentals. A few third-party or network-specific setups caused inaccurate or unavailable remote control.

22 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Setup guidance is generally praised as clear and detailed, but one reviewer faulted the instructions for not warning about an additional switch that caused an installation mistake.

3 supporting reviews · Mixed evidence

Honeywell Home X2S

The written directions are usually praised as clear and easy to follow, and several owners completed wiring directly from them. One manual was called confusing, and another setup guide had a QR-code issue.

7 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Value opinions are mostly positive for users who will use the premium features, but one reviewer says the added features may not justify the price for everyone.

10 supporting reviews

Honeywell Home X2S

Value is one of the strongest themes: many owners see the X2S as an affordable way to get reliable Wi-Fi control, scheduling, and broad compatibility. The value falls apart for buyers who hit hardware, wiring, or sensor limitations.

20 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Google Home support is part of the praised broad assistant compatibility in one review.

1 supporting review · Limited evidence

Honeywell Home X2S

Google Assistant support is part of the X2S’s broad voice-platform compatibility, with hands-free control described as simple in the expert evaluation.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

Design and finish quality are among the strongest positives, with repeated praise for the premium feel, zinc/metal body, and modern look.

9 supporting reviews

Honeywell Home X2S

Styling is functional rather than premium, and several descriptions call it basic or utilitarian. Still, owners often find the unit sturdier or better-looking in person than expected.

7 supporting reviews

Ecobee Smart Thermostat Premium

Reviewers generally found comfort consistent and easy to maintain, with praise for fewer manual changes and dependable operation.

4 supporting reviews

Honeywell Home X2S

Heating and cooling performance is usually dependable, with several owners reporting stable comfort and reliable operation. A minority report short cycling or setup-related behavior that can undermine consistency.

5 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Adaptive recovery generally works as intended, starting early enough to hit the target temperature on schedule. The owner who tested it said it can occasionally be a little too aggressive.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Automatic heat/cool switching is a repeated frustration. Several owners say they cannot set the temperature bracket they expect from a smart thermostat, or find switching behavior unreliable.

4 supporting reviews

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

There is no desktop web-control option in the cited owner experience, which was a dealbreaker for a buyer who did not want smartphone-only remote access.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

Energy-saving recommendations and automation are praised for reducing runtime, saving energy costs, and keeping the home comfortable economically.

4 supporting reviews

Honeywell Home X2S

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Some owners report meaningful savings after gaining better schedule and remote control, including one who said the electric bill dropped dramatically.

2 supporting reviews

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Heat-pump owners generally get good results, including two-stage systems. A few needed extra fiddling, special instructions, or a support call before everything worked correctly.

7 supporting reviews

Ecobee Smart Thermostat Premium

The Premium model is recommended for users with HVAC accessories such as humidifiers or air purifiers, suggesting added value for those systems.

1 supporting review · Limited evidence

Honeywell Home X2S

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

A couple of owners noticed unusual timing behavior, including slightly slow starts or recovery that felt too aggressive. Both reports were qualified rather than outright failures.

2 supporting reviews

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Manual control is generally straightforward, but hold behavior is not as flexible as some owners expect. One user disliked being unable to choose a custom hold-until time, while another valued having direct control instead of learning automation.

3 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

The stripped-back design appeals to buyers who want smart control without intrusive monitoring or unnecessary automation.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

One owner criticized the upgrade path because the suggested higher-end replacement would not remain compatible with the other X2S units already installed.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Support experiences vary widely. Some owners describe fast, excellent help, while others faced long waits or felt support did not resolve their setup problem.

5 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Home/away geofencing is a valued convenience for owners who want temperatures to adjust automatically when they leave or return.

1 supporting review · Limited evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Long-term reliability is mixed rather than uniform. Some units run flawlessly for months, while others arrived faulty, failed after weeks, or had hardware problems out of the box.

6 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Multi-stage support is a useful strength for homes that need two-stage heating or cooling. Setup can take a little extra work on some heat-pump systems, but owners report successful operation.

3 supporting reviews

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Outage recovery is a weak point in the limited reports available. One failed unit would not return after a power cycle, while another lost time and scheduling after power failure.

2 supporting reviews

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Filter-change reminders are simple but practical, fitting the X2S’s focus on everyday automation rather than premium extras.

2 supporting reviews

Ecobee Smart Thermostat Premium

Occupancy detection is split: reviewers praise the radar sensor's accuracy, but one found presence detection unreliable without enough sensors.

4 supporting reviews · Mixed evidence

Honeywell Home X2S

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

The relay click is a recurring complaint and can be very loud when heating or cooling switches on or off. It may be especially distracting in a bedroom or other quiet space.

3 supporting reviews

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Most short-form owner impressions are strongly positive, describing the thermostat as simple, convenient, and effective. A smaller group encountered enough problems to abandon it or recommend against it.

36 supporting reviews · Mixed evidence

Ecobee Smart Thermostat Premium

Room prioritization is praised by reviewers who use a bedroom sensor at night instead of relying only on the thermostat's hallway reading.

2 supporting reviews

Honeywell Home X2S

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Ecobee Smart Thermostat Premium

Touchscreen feedback is strongly positive, with reviewers calling the new interface easier and more responsive.

3 supporting reviews

Honeywell Home X2S

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Ecobee Smart Thermostat Premium

No review summary available for this feature. Missing evidence does not mean the feature is absent.

Honeywell Home X2S

Wi-Fi is easy to connect for many owners, helped by dual-band support and Bluetooth-assisted setup. A minority report severe dropouts or network-specific incompatibility, so reliability is not uniformly strong.

17 supporting reviews · Mixed evidence