Fitbit Flex 2 vs. Fitbit Ionic vs. Garmin Fenix 5s vs. Casio WSD-F20A vs. Garmin Vivofit 4

 
Flex 2
Ionic
Fenix 5s
WSD-F20A
Vivofit 4
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowGarminFenix 5sRemove Buy NowCasioWSD-F20ARemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$100$299$599.99$399$79.95
Release20162017201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ daysUp to 9 days1 day1 year
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250218x 218320 x 32088 x 88
Sizen/a1.421.1 inches1.32 inchesNA
Touchn/a
TypeLEDOLEDnaLCDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m10ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSWear OS
Apps
Music

All Wearables