Apple Watch Series 3 vs. Fitbit Alta vs. Apple Watch Series 2 vs. Casio G-Shock GBA800 vs. Fitbit Charge

 
Watch Series 3
Alta
Watch Series 2
G-Shock GBA800
Charge
 AppleWatch Series 3Remove Buy NowFitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitChargeRemove Buy Now

Basic Info

Suggested Price$329$130$269$120$130
Release20172016201620182014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days18 hours2 years7-10 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a340 x 272 or 390 x 312NA
Size1.5 inches or 1.65 inchesn/a1.5 inches or 1.65 inchesNA
Touchn/aNA
TypeAMOLEDOLEDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5ATM20 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemWatchOS 4n/aWatch OSNA
Apps
Music

All Wearables