Samsung Gear S2 vs. Fitbit Alta vs. Garmin Vivosmart HR vs. Fitbit Charge HR vs. Garmin Vivosmart 4

 
Gear S2
Alta
Vivosmart HR
Charge HR
Vivosmart 4
 SamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowGarminVivosmart HRRemove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$300$130$170$150$130
Release20152016201520152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days5 days5 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a160 x 68NA48 x 128
Size1.2 inchesn/a1.08 inchesNA0.74 inches
Touchn/aNA
TypeSuper AMOLEDOLEDn/aOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a5 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/an/aNA
Apps
Music

All Wearables