Thermostats · Head to head

Meross MTS300 Smart Thermostat vs Sonoff Thermostat Core

Full Smart Thermostats comparison in 2026

Updated November 2026
Data from the official Meross and Sonoff sites.
2026 verdict
Sonoff Thermostat Core wins the 2026 matchup against Meross MTS300 Smart Thermostat, mainly on price, rating, and connectivity.
The comparison tilts its way because of price, rating, and connectivity, with alerts keeping it in front. You should still consider Meross MTS300 Smart Thermostat if warranty, included accessories, and system health monitor matter more than raw overall balance. In practical terms, Sonoff Thermostat Core is the easier product to recommend.
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FeatureMeross MTS300 Smart ThermostatSonoff Thermostat CoreWinner
Price$58.99£34.20Sonoff Thermostat Core
Rating3.84.6Sonoff Thermostat Core
Warranty3 years2 yearsMeross MTS300 Smart Thermostat
Included accessoriesTrim PlateNoneMeross MTS300 Smart Thermostat
Connectivity2.4 GHz WiFiBluetooth, ZigbeeSonoff Thermostat Core
AlertsNoneTemperature AlertsSonoff Thermostat Core
System Health MonitorYESNOMeross MTS300 Smart Thermostat
PowerC-Wire RequiredNoneTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature SensorsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature SensorsTie
ScreenYESYESTie
SensorsTemperature, HumidityProximity / Motion, TemperatureTie
Energy SavingsYESYESTie
Winner
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£34.20
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  • + Price: £34.20
  • + Rating: 4.6
  • + Connectivity: Bluetooth, Zigbee
  • - Warranty: 2 years vs 3 years
  • - Included accessories: None vs Trim Plate

Frequently Asked Questions

Which is better overall: Meross MTS300 Smart Thermostat or Sonoff Thermostat Core?

Sonoff Thermostat Core has the stronger overall profile in this comparison, especially for price, rating, and connectivity.

What is the biggest difference between Meross MTS300 Smart Thermostat and Sonoff Thermostat Core?

Price is one of the clearest differences: Meross MTS300 Smart Thermostat lists $58.99, while Sonoff Thermostat Core lists £34.20.

Which one looks better on price?

Meross MTS300 Smart Thermostat is listed at $58.99, while Sonoff Thermostat Core is listed at £34.20. Sonoff Thermostat Core (better spec).

Who should buy Meross MTS300 Smart Thermostat?

Choose Meross MTS300 Smart Thermostat if your priority is warranty and included accessories and that matters more than price.

Who should buy Sonoff Thermostat Core?

Choose Sonoff Thermostat Core if your priority is price and rating and that matters more than warranty.

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