Apple Watch Series 3 vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Casio WSD-F20A vs. Garmin Fenix 5x Plus

 
Watch Series 3
Flex 2
Stratos
WSD-F20A
Fenix 5x Plus
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowCasioWSD-F20ARemove Buy NowGarminFenix 5x PlusRemove Buy Now

Basic Info

Suggested Price$329$100$199$399$850
Release20172016201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a320 x 300320 x 320240 x 240
Size1.5 inches or 1.65 inchesn/a1.34 inches1.32 inches1.2 inches
Touchn/a
TypeAMOLEDLEDOLEDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aProprietaryWear OSWear OS
Apps
Music

All Wearables