Samsung Gear S vs. Samsung Gear S2 vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Vivosmart HR Plus

 
Gear S
Gear S2
Flex 2
645 Music
Vivosmart HR Plus
 SamsungGear SRemove Buy NowSamsungGear S2Remove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart HR PlusRemove Buy Now

Basic Info

Suggested Price$250$300$100$450$179
Release20132015201620182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days5 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolution480 x 360360 x 360n/a240 x 240160 x 68
Size2 inches1.2 inchesn/a1.2 inches0.5 inches x 0.8 inches
Touchn/a
TypeSuper AMOLEDSuper AMOLEDLEDMIPLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP685 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizenn/aNA
Apps
Music

All Wearables