Fitbit Ionic vs. Garmin Vivoactive 3 vs. Apple Watch Series 4 vs. Skagen Falster 2 vs. Amazfit T-Rex

 
Ionic
Vivoactive 3
Watch Series 4
Falster 2
T-Rex
 FitbitIonicRemove Buy NowGarminVivoactive 3Remove Buy NowAppleWatch Series 4Remove Buy NowSkagenFalster 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$299$329$199$140
Release20172017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days7 daysNot Yet1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240384 x 480320 x 320360 x 360
Size1.421.2 inches1.78 inches1.19 inches1.3 inches
Touch
TypeOLEDMIPMicroLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATMNot Yet3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSWatch OS 5Wear OSBuild-in
Apps
Music

All Wearables