Polar M430 vs. Casio G-Shock GBA800 vs. Michael Kors Access Sofie vs. Fitbit Charge HR vs. Amazfit T-Rex

 
M430
G-Shock GBA800
Access Sofie
Charge HR
T-Rex
 PolarM430Remove Buy NowCasioG-Shock GBA800Remove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitCharge HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$255$120$395$150$140
Release20172018201720152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours2 years1 day5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128390 x 390 1.19 inchesNA360 x 360
Size1.4 inchNA1.3 inches
TouchAMOLDEDNA
TypeLCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR3020 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2.0NABuild-in
Apps
Music

All Wearables