Polar M400 vs. Fitbit One vs. Mobvoi TicWatch S2 vs. Huawei Band 3 Pro vs. Amazfit T-Rex

 
M400
One
TicWatch S2
Band 3 Pro
T-Rex
 PolarM400Remove Buy NowFitbitOneRemove Buy NowMobvoiTicWatch S2Remove Buy NowHuaweiBand 3 ProRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$100$180$70$140
Release20142012201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days10-14 days2 DAYS12 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a400 x 400454 x 454360 x 360
Sizen/an/a1.39 inches1.39 inches1.3 inches
Touch
Typen/aOLEDOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast Resistant5 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSAMAZFIT OSBuild-in
Apps
Music

All Wearables