Motorola Moto 360 (2nd Gen) vs. Pebble Time Steel vs. Polar M400 vs. Pebble Core vs. Amazfit T-Rex

 
Moto 360 (2nd Gen)
Time Steel
M400
Core
T-Rex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPebbleTime SteelRemove Buy NowPolarM400Remove Buy NowPebbleCoreRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$250$200$99$140
Release20152015201420162019

Activity & Fitness

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

Battery

Duration1.5 days10 days8 hours to 30 daysNA20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330168 x 144n/aNA360 x 360
Size1.37 inches or 1.56 inches1.26 inchesn/aNA1.3 inches
TouchNA
TypeLCDe-papern/aNAAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM3 ATMNA5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemAndroid WearPebble OSn/aNABuild-in
Apps
Musicn/a

All Wearables