Polar M600 vs. Fitbit Flex 2 vs. Michael Kors Access Sofie vs. Polar A370 vs. Apple Watch Series 4

 
M600
Flex 2
Access Sofie
A370
Watch Series 4
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowPolarA370Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$330$100$395$179.95$329
Release20162016201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days1 dayUp to 3 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a390 x 390 1.19 inches160 x 80384 x 480
Size1.3 inchesn/a1.18 inches1.78 inches
Touchn/an/aAMOLDED
TypeTFTLEDTFT LCDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM1 ATMWR30Not Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0Watch OS 5
Apps
Music

All Wearables