Fitbit Ionic vs. Garmin Vivoactive 3 vs. Fitbit Flex vs. Pebble Core vs. Amazfit T-Rex

 
Ionic
Vivoactive 3
Flex
Core
T-Rex
 FitbitIonicRemove Buy NowGarminVivoactive 3Remove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$299$100$99$140
Release20172017201320162019

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration4+ days7 days5 daysNA20 days
Rechargeable

Compatibility

Android
iOSNA
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240NANA360 x 360
Size1.421.2 inchesNANA1.3 inches
TouchNANA
TypeOLEDMIPLEDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM1 ATMNA5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemFitbit OSNANABuild-in
Apps
Music

All Wearables