Polar M400 vs. Mobvoi TicWatch 2 vs. Asus ZenWatch vs. Pebble Time 2 vs. Amazfit T-Rex

 
M400
TicWatch 2
ZenWatch
Time 2
T-Rex
 PolarM400Remove Buy NowMobvoiTicWatch 2Remove Buy NowAsusZenWatchRemove Buy NowPebbleTime 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$199$150$199$140
Release20142017201420162019

Activity & Fitness

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

Battery

Duration8 hours to 30 days1.5-2 DaysNA10 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400320 x 320NA360 x 360
Sizen/a1.4 inches1.63 inchesNA1.3 inches
Touch
Typen/aOLEDAMOLEDe-paperAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP65IP553 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aTicwear OSAndroid WearPebble OSBuild-in
Apps
Music

All Wearables