Apple Watch Series 3 vs. Fitbit Charge 2 vs. Casio WSD-F20A vs. Garmin Fenix 5X vs. Polar A370

 
Watch Series 3
Charge 2
WSD-F20A
Fenix 5X
A370
 AppleWatch Series 3Remove Buy NowFitbitCharge 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarminFenix 5XRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$329$150$399$699$179.95
Release20172016201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days1 dayUp to 12 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a320 x 320240 x240160 x 80
Size1.5 inches or 1.65 inchesn/a1.32 inches1.2 inches1.18 inches
Touchn/a
TypeAMOLEDOLEDLCDNATFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM10 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aWear OS
Apps
Music

All Wearables