Pebble Steel vs. Samsung Gear S2 vs. Apple Watch Series 2 vs. Casio G-Shock GBA800 vs. Fitbit Alta HR

 
Steel
Gear S2
Watch Series 2
G-Shock GBA800
Alta HR
 PebbleSteelRemove Buy NowSamsungGear S2Remove Buy NowAppleWatch Series 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$150$300$269$120$150
Release20142015201620182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days2-3 days18 hours2 years7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution168 x 144360 x 360340 x 272 or 390 x 312128 x 36
Size1.26 inches1.2 inches1.5 inches or 1.65 inches1.4 inches
Touch
Typee-paperSuper AMOLEDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP685ATM20 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSTizenWatch OS
Apps
Music

All Wearables