Amazfit Stratos vs. Mobvoi TicWatch S vs. Fitbit Flex vs. Polar A370 vs. Amazfit T-Rex

 
Stratos
TicWatch S
Flex
A370
T-Rex
 AmazfitStratosRemove Buy NowMobvoiTicWatch SRemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$199$199$100$179.95$140
Release20182017201320172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1.5-2 days5 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 300400 x 400NA160 x 80360 x 360
Size1.34 inches1.4 inchesNA1.18 inches1.3 inches
TouchNA
TypeOLEDOLEDLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP671 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemProprietaryAndroid Wear 2.0NABuild-in
Apps
Music

All Wearables