Pebble Time Round vs. Polar M400 vs. Asus ZenWatch vs. Samsung Galaxy Watch vs. Amazfit T-Rex

 
Time Round
M400
ZenWatch
Galaxy Watch
T-Rex
 PebbleTime RoundRemove Buy NowPolarM400Remove Buy NowAsusZenWatchRemove Buy NowSamsungGalaxy WatchRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$200$150$330$140
Release20152014201420182019

Activity & Fitness

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

Battery

Duration2 days8 hours to 30 daysNA7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
CellularNA
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 320360 x 360360 x 360
Sizeroundn/a1.63 inches1.2 inches or 1.3 inches1.3 inches
Touch
Typee-papern/aAMOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX73 ATMIP555 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemPebble OSn/aAndroid WearTizen OSBuild-in
Apps
MusicSpotify

All Wearables