Fitbit Flex 2 vs. Casio WSD-F20A vs. Polar A370 vs. Apple Watch Series 5 vs. Michael Kors Access Sofie HR

 
Flex 2
WSD-F20A
A370
Watch Series 5
Access Sofie HR
 FitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowPolarA370Remove Buy NowAppleWatch Series 5Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$100$399$179.95$329$395
Release20162018201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 dayUp to 3 daysNot Yet2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320160 x 80384 x 480390 x 390
Sizen/a1.32 inches1.18 inches1.78 Inches1.19 inches
Touchn/a
TypeLEDLCDTFT LCDMicroLEDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMWR30Not Yet0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatchOS 5Wear OS
Apps
Music

All Wearables