Samsung Gear S2 vs. Fitbit Alta vs. Fitbit Charge HR vs. Apple Watch Series 4 vs. Apple Watch 7

 
Gear S2
Alta
Charge HR
Watch Series 4
Watch 7
 SamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowFitbitCharge HRRemove Buy NowAppleWatch Series 4Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$300$130$150$329$429
Release20152016201520182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days5 daysNot Yet18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/aNA384 x 480396 x 484
Size1.2 inchesn/aNA1.78 inches1.9 inches
Touchn/aNA
TypeSuper AMOLEDOLEDOLEDMicroLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a1 ATMNot Yetwater resistant but not waterproof

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/aNAWatch OS 5WatchOS 8
Apps
Music

All Wearables