Polar M400 vs. TomTom Adventurer vs. Garmin Vivosmart HR vs. Motorola Moto 360 (1st Gen) vs. Amazfit T-Rex

 
M400
Adventurer
Vivosmart HR
Moto 360 (1st Gen)
T-Rex
 PolarM400Remove Buy NowTomTomAdventurerRemove Buy NowGarminVivosmart HRRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$350$170$150$140
Release20142016201520142019

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a5 days1 day20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a160 x 68320 x 260360 x 360
Sizen/an/a1.08 inches1.56 inches1.3 inches
Touch
Typen/an/an/aLCDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATMIP675 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aAndroid WearBuild-in
Apps
MusicNA

All Wearables