Garmin Forerunner 225 vs. Polar M600 vs. Garmin Chronos vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Forerunner 225
M600
Chronos
Vivosmart 4
T-Rex
 GarminForerunner 225Remove Buy NowPolarM600Remove Buy NowGarminChronosRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$330$1500$130$140
Release20152016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks2 days8 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180240 x 240218 x 21848 x 128360 x 360
Size1 inch1.3 inches1.2 inches0.74 inches1.3 inches
Touchn/a
Typen/aTFTMIPOLEDAMOLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX810 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aAndroid WearWear OSBuild-in
Appsn/a
Musicn/a

All Wearables