Polar M400 vs. Asus ZenWatch vs. Garmin Fenix 5s Plus vs. Mobvoi TicWatch S2 vs. Amazfit T-Rex

 
M400
ZenWatch
Fenix 5s Plus
TicWatch S2
T-Rex
 PolarM400Remove Buy NowAsusZenWatchRemove Buy NowGarminFenix 5s PlusRemove Buy NowMobvoiTicWatch S2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$150$799$180$140
Release20142014201820192019

Activity & Fitness

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

Battery

Duration8 hours to 30 daysNA7 days2 DAYS20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320240 x 240400 x 400360 x 360
Sizen/a1.63 inches1.2 inches1.39 inches1.3 inches
Touch
Typen/aAMOLEDMIPOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP5510 ATM5 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearWear OSWear OSBuild-in
Apps
Music

All Wearables