Samsung Gear S vs. Samsung Gear S3 vs. Fitbit Flex 2 vs. Garmin Vivosmart HR vs. HTC re Grip

 
Gear S
Gear S3
Flex 2
Vivosmart HR
re Grip
 SamsungGear SRemove Buy NowSamsungGear S3Remove Buy NowFitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$250$350$100$170$199
Release20132016201620152020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleepn/a
Steps
Swim

Battery

Durationn/a4 days5 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Colorn/a
Resolution480 x 360360 x 360n/a160 x 68160 x 32
Size2 inches1.3 inchesn/a1.08 inches1.8 inches
Touchn/a
TypeSuper AMOLEDFullcolor AODLEDn/aPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP685 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizenn/an/aNA
Apps
Music

All Wearables