Garmin Forerunner 735XT vs. Polar M400 vs. Amazfit Stratos vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Forerunner 735XT
M400
Stratos
Vivosmart 4
T-Rex
 GarminForerunner 735XTRemove Buy NowPolarM400Remove Buy NowAmazfitStratosRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$450$200$199$130$140
Release20162014201820182019

Activity & Fitness

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

Battery

Duration14 hours to 11 days8 hours to 30 days5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180n/a320 x 30048 x 128360 x 360
Size1.23 inchesn/a1.34 inches0.74 inches1.3 inches
Touchn/a
Typen/an/aOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aProprietaryBuild-in
Apps
Music

All Wearables