Samsung Gear S vs. Fitbit Flex 2 vs. Fitbit Ionic vs. Garmin 645 Music vs. Garmin Vivosmart 3

 
Gear S
Flex 2
Ionic
645 Music
Vivosmart 3
 SamsungGear SRemove Buy NowFitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$250$100$299$450$139.99
Release20132016201720182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days4+ days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution480 x 360n/a348x250240 x 24064 x 128
Size2 inchesn/a1.421.2 inchesNA
Touchn/a
TypeSuper AMOLEDLEDOLEDMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM50m5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aFitbit OS
Apps
Music

All Wearables