Fitbit Ionic vs. Samsung Gear 2 vs. Garmin Vivosmart 3 vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex

 
Ionic
Gear 2
Vivosmart 3
On Full Guard 2.5
T-Rex
 FitbitIonicRemove Buy NowSamsungGear 2Remove Buy NowGarminVivosmart 3Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$300$139.99$325$140
Release20172014201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration4+ days2-3 days5 days4 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 32064 x 128454x454360 x 360
Size1.421.63 inchesNA1.39 inches1.3 inches
Touch
TypeOLEDSuper AMOLEDOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mIP675 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSTizen OSWear OSBuild-in
Apps
Music

All Wearables