Samsung Gear S2 vs. Fitbit Flex 2 vs. Polar M430 vs. Casio WSD-F20A vs. Apple Watch 7

 
Gear S2
Flex 2
M430
WSD-F20A
Watch 7
 SamsungGear S2Remove Buy NowFitbitFlex 2Remove Buy NowPolarM430Remove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$300$100$255$399$429
Release20152016201720182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days30 hours1 day18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolution360 x 360n/a128x128320 x 320396 x 484
Size1.2 inchesn/a1.4 inch1.32 inches1.9 inches
Touchn/a
TypeSuper AMOLEDLEDLCDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMWR305 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aWear OSWatchOS 8
Apps
Music

All Wearables