Polar M600 vs. Garmin Vivosmart HR vs. Garmin Vivoactive 3 vs. Apple Watch Series 4 vs. Amazfit T-Rex

 
M600
Vivosmart HR
Vivoactive 3
Watch Series 4
T-Rex
 PolarM600Remove Buy NowGarminVivosmart HRRemove Buy NowGarminVivoactive 3Remove Buy NowAppleWatch Series 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$170$299$329$140
Release20162015201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days7 daysNot Yet20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240160 x 68240 x 240384 x 480360 x 360
Size1.3 inches1.08 inches1.2 inches1.78 inches1.3 inches
Touchn/a
TypeTFTn/aMIPMicroLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWatch OS 5Build-in
Apps
Music

All Wearables