Polar M600 vs. Fitbit Alta vs. Fitbit Flex 2 vs. Diesel On Full Guard vs. Michael Kors Access Sofie HR

 
M600
Alta
Flex 2
On Full Guard
Access Sofie HR
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowDieselOn Full GuardRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$330$130$100$325$395
Release20162016201620172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days5 days1 day2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/an/a454 x 454390 x 390
Size1.3 inchesn/an/a1.4 inches1.19 inches
Touchn/an/an/a
TypeTFTOLEDLEDOMOLEDOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATMIP670.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/an/aAndroid Wear 2.0Wear OS
Apps
Music

All Wearables