Polar M600 vs. Withings Steel HR vs. Diesel On Full Guard vs. Fitbit Charge 3 vs. Diesel On Full Guard 2.5

 
M600
Steel HR
On Full Guard
Charge 3
On Full Guard 2.5
 PolarM600Remove Buy NowWithingsSteel HRRemove Buy NowDieselOn Full GuardRemove Buy NowFitbitCharge 3Remove Buy NowDieselOn Full Guard 2.5Remove Buy Now

Basic Info

Suggested Price$330$180$325$150$325
Release20162016201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days25 days1 day7 days4 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution240 x 240n/a454 x 45466 x 18454x454
Size1.3 inchesn/a1.4 inches.721 inches1.39 inches
Touchn/a
TypeTFTn/aOMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMIP675 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0NAWear OS
Apps
Music

All Wearables