Polar M400 vs. Mobvoi TicWatch S vs. Diesel On Full Guard 2.5 vs. Mobvoi TicWatch e2 vs. Amazfit T-Rex

 
M400
TicWatch S
On Full Guard 2.5
TicWatch e2
T-Rex
 PolarM400Remove Buy NowMobvoiTicWatch SRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowMobvoiTicWatch e2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$199$325$200$140
Release20142017201820192019

Activity & Fitness

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

Battery

Duration8 hours to 30 days1.5-2 days4 days1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400454x454360 x 360360 x 360
Sizen/a1.4 inches1.39 inches1.2 inches1.3 inches
Touch
Typen/aOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP673 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0Wear OSWear OSBuild-in
Apps
Music

All Wearables