Garmin Vivoactive HR vs. Polar M600 vs. Fitbit Charge 2 vs. Garmin Vivofit 4 vs. Amazfit T-Rex

 
Vivoactive HR
M600
Charge 2
Vivofit 4
T-Rex
 GarminVivoactive HRRemove Buy NowPolarM600Remove Buy NowFitbitCharge 2Remove Buy NowGarminVivofit 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$330$150$79.95$140
Release20162016201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days2 days5 days1 year20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205240 x 240n/a88 x 88360 x 360
Size1.38 inches1.3 inchesn/aNA1.3 inches
Touchn/an/a
Typen/aTFTOLEDNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX8n/a5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/aBuild-in
Apps
Music

All Wearables