Samsung Gear S vs. Fitbit Flex 2 vs. Sony SmartBand 2 vs. Amazfit T-Rex

 
Gear S
Flex 2
SmartBand 2
T-Rex
 SamsungGear SRemove Buy NowFitbitFlex 2Remove Buy NowSonySmartBand 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$100$130$140
Release2013201620152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days2 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolution480 x 360n/an/a360 x 360
Size2 inchesn/an/a1.3 inches
Touchn/an/a
TypeSuper AMOLEDLEDn/aAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATMIP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/an/aBuild-in
Apps
Music

All Wearables