ecobee3 Smarter
Score: 84/100
Mysa Smart Thermostat
Score: 74/100Rankings
The ecobee3 Smarter thermostat provides a 3.5-inch color touchscreen and a suite of built-in sensors for precise climate control, along with broad 24 V HVAC compatibility and optional Power Extender Kit. It requires a C-wire or additional kit and uses older 2.4 GHz Wi-Fi, which may limit some setups. Best suited for users wanting multi-zone sensing and Apple ecosystem integration.
Mysa's Smart Thermostat V2 is a line-voltage Wi-Fi thermostat designed for electric baseboard and similar heaters, delivering up to 26% energy savings with precise temperature and humidity alerts. Its compatibility is limited to electric heating systems and it lacks battery backup and Bluetooth, restricting broader use cases. Perfect for homeowners upgrading electric heating with smart controls and zoning capabilities.
| Attribute | | |
|---|---|---|
— | 0.28 °Cbest | |
3 yearsbest | 2 years | |
3.5 inchbest | — | |
| ↓ lower better | 0.612 kg | 0.51 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
General(2) | ||
HVAC Compatibility | ~95% of 24V systems (conventional 2H/2C, heat pump 4H/2C, gas/oil/electric/dual fuel, humidifier/dehumidifier/ventilator/HRV/ERV) | Electric baseboard, convector, radiant ceiling, self-contained hydronic baseboard |
Warranty (years) | 3 years | 2 years |
Connectivity(2) | ||
Wi‑Fi Standard | 802.11 b/g/n (2.4 GHz) | 2.4 GHz |
Smart Home Integration | Apple HomeKit, Amazon Alexa, Google Assistant | Apple HomeKit, Amazon Alexa, Google Home |
Power & Installation(2) | ||
C‑Wire Requirement | true | false |
Power Source | 24 VAC | 120-240 V AC |
Display(1) | ||
Display Type | color touchscreen | LED with capacitive touch touchscreen |
Build & Design(2) | ||
Device Weight (kg) | 0.612 kg | 0.51 kg |
Device Dimensions (H×W×D) (mm) | 23.6×100.3×100.3 mm mm | 129.5×88.9×20.3 mm mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Ecobee3 for its comprehensive sensor suite that enables smart recovery and precise humidity management, as well as its extensive HVAC compatibility that covers most 24V systems. They note its value for multi-zone comfort without a hub, while pointing out the need for a C-wire or Power Extender Kit and the lack of newer Wi-Fi standards compared to later models.
Everyday users praise the thermostat for its straightforward installation and reliable Wi-Fi control, especially appreciating the seamless Siri and HomeKit integration. The most common feedback revolves around occasional wiring difficulties in homes without a C-wire, but overall sentiment is highly positive.
Professional reviewers consistently commend the Mysa V2 for its ease of installation, substantial energy-saving claims, and extensive smart-home integration, positioning it as the top choice for electric baseboard heating upgrades. The main criticisms focus on wiring requirements and the lack of support for low-voltage heating systems.
Direct consumer reviews are not present in the sourced data, but the product’s multi‑pack offerings and emphasis on family‑friendly app access suggest a positive reception among homeowners seeking whole‑home zoning and remote control.
“ease of install and Wi-Fi control”
“seamless Siri/HomeKit remote access”
