Samsung Gear S vs. Fitbit Charge 2 vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Amazfit GTS

 
Gear S
Charge 2
Forerunner 935
645 Music
GTS
 SamsungGear SRemove Buy NowFitbitCharge 2Remove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$250$150$500$450$150
Release20132016201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 daysUp to 2 weeks7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution480 x 360n/a240 x 240240 x 240348 x 442
Size2 inchesn/a1.2 inches1.2 inches1.65 inches
Touchn/a
TypeSuper AMOLEDOLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67n/a5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aWear OS
Apps
Music

All Wearables