Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Amazfit Bip vs. Casio WSD-F20A vs. Apple Series 6

 
Flex 2
Forerunner 935
Bip
WSD-F20A
Series 6
 FitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowAmazfitBipRemove Buy NowCasioWSD-F20ARemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$500$99.99$399$399
Release20162017201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks30 days1 dayNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240176 x 176320 x 320384 x 480
Sizen/a1.2 inches1.28 inches1.32 inches40mm
Touchn/a
TypeLEDLCDNALCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatchOS 5
Apps
Music

All Wearables