Polar M600 vs. Fitbit Charge 2 vs. Polar Loop 2 vs. Diesel On Full Guard vs. Amazfit T-Rex

 
M600
Charge 2
Loop 2
On Full Guard
T-Rex
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowPolarLoop 2Remove Buy NowDieselOn Full GuardRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$150$120$325$140
Release20162016201520172019

Activity & Fitness

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

Battery

Duration2 days5 days8 days (without notifications)1 day20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/an/a454 x 454360 x 360
Size1.3 inchesn/an/a1.4 inches1.3 inches
Touchn/an/a
TypeTFTOLEDLEDOMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a2 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aAndroid Wear 2.0Build-in
Apps
Music

All Wearables