Polar M600 vs. Fitbit Alta vs. Fitbit Alta HR vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex

 
M600
Alta
Alta HR
On Full Guard 2.5
T-Rex
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowFitbitAlta HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$130$150$325$140
Release20162016201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days7 days4 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a128 x 36454x454360 x 360
Size1.3 inchesn/a1.4 inches1.39 inches1.3 inches
Touchn/an/a
TypeTFTOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/aWear OSBuild-in
Apps
Music

All Wearables