Samsung Gear S vs. Fitbit Ionic vs. Garmin Fenix 5X vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Gear S
Ionic
Fenix 5X
Vivosmart 3
T-Rex
 SamsungGear SRemove Buy NowFitbitIonicRemove Buy NowGarminFenix 5XRemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$299$699$139.99$140
Release20132017201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a4+ daysUp to 12 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution480 x 360348x250240 x24064 x 128360 x 360
Size2 inches1.421.2 inchesNA1.3 inches
Touch
TypeSuper AMOLEDOLEDNAOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6750m10 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenFitbit OSBuild-in
Apps
Music

All Wearables