Pebble Time vs. Polar M400 vs. Polar Loop 2 vs. Diesel On Full Guard vs. Amazfit T-Rex

 
Time
M400
Loop 2
On Full Guard
T-Rex
 PebbleTimeRemove Buy NowPolarM400Remove Buy NowPolarLoop 2Remove Buy NowDieselOn Full GuardRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$120$325$140
Release20152014201520172019

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days8 days (without notifications)1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/an/a454 x 454360 x 360
Size1.26 inchesn/an/a1.4 inches1.3 inches
Touch
Typee-papern/aLEDOMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM2 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/an/aAndroid Wear 2.0Build-in
Apps
Music

All Wearables