Polar Loop 2 vs. Fitbit Ionic vs. Garmin Vivosmart HR Plus vs. Pebble Core vs. Amazfit T-Rex

 
Loop 2
Ionic
Vivosmart HR Plus
Core
T-Rex
 PolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowGarminVivosmart HR PlusRemove Buy NowPebbleCoreRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$120$299$179$99$140
Release20152017201720162019

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heartn/a
Oxygen
SleepNA
Steps
Swim

Battery

Duration8 days (without notifications)4+ days5 daysNA20 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250160 x 68NA360 x 360
Sizen/a1.420.5 inches x 0.8 inchesNA1.3 inches
TouchNA
TypeLEDOLEDLCDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM50m5 ATMNA5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aFitbit OSNANABuild-in
Apps
Music

All Wearables