Samsung Gear S2 vs. Fitbit Flex 2 vs. Samsung Gear Sport vs. Jawbone UP3 vs. Amazfit T-Rex

 
Gear S2
Flex 2
Gear Sport
UP3
T-Rex
 SamsungGear S2Remove Buy NowFitbitFlex 2Remove Buy NowSamsungGear SportRemove Buy NowJawboneUP3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$100$299.99$180$140
Release20152016201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days2 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolution360 x 360n/a360 x 360NA360 x 360
Size1.2 inchesn/a1.2 inchesNA1.3 inches
Touchn/aNA
TypeSuper AMOLEDLEDSuper AMOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM5 ATMNA5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aTizen OSNABuild-in
Apps
MusicNA

All Wearables