Samsung Gear S vs. Samsung Gear S2 vs. Garmin 645 Music vs. Garmin Instinct vs. Fitbit Sense 2

 
Gear S
Gear S2
645 Music
Instinct
Sense 2
 SamsungGear SRemove Buy NowSamsungGear S2Remove Buy NowGarmin645 MusicRemove Buy NowGarminInstinctRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$250$300$450$300$300
Release20132015201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days7 days14 days6 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
Resolution480 x 360360 x 360240 x 240128 x 128336x336
Size2 inches1.2 inches1.2 inches0.9 inches1.59 inches
Touch
TypeSuper AMOLEDSuper AMOLEDMIPOMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP685 ATM10 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizen
Apps
Music

All Wearables