Pebble Time vs. Polar M400 vs. Polar M600 vs. Amazfit GTS vs. Amazfit T-Rex

 
Time
M400
M600
GTS
T-Rex
 PebbleTimeRemove Buy NowPolarM400Remove Buy NowPolarM600Remove Buy NowAmazfitGTSRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$330$150$140
Release20152014201620192019

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days2 days14 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a240 x 240348 x 442360 x 360
Size1.26 inchesn/a1.3 inches1.65 inches1.3 inches
Touchn/a
Typee-papern/aTFTAMOLEDAMOLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIPX85 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aAndroid WearWear OSBuild-in
Apps
Music

All Wearables