Apple Watch Series 2 vs. Fitbit Ionic vs. Garmin Fenix 5s vs. Amazfit Stratos vs. Casio WSD-F20A

 
Watch Series 2
Ionic
Fenix 5s
Stratos
WSD-F20A
 AppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowGarminFenix 5sRemove Buy NowAmazfitStratosRemove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$269$299$599.99$199$399
Release20162017201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours4+ daysUp to 9 days5 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312348x250218x 218320 x 300320 x 320
Size1.5 inches or 1.65 inches1.421.1 inches1.34 inches1.32 inches
Touch
TypeAMOLEDOLEDnaOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM50m10ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSFitbit OSProprietaryWear OS
Apps
Music

All Wearables