Fitbit Flex 2 vs. Pebble Core vs. Garmin Forerunner 45 vs. Amazfit GTR vs. Garmin VivoActive 4

 
Flex 2
Core
Forerunner 45
GTR
VivoActive 4
 FitbitFlex 2Remove Buy NowPebbleCoreRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$99$199$199$349
Release20162016201920192019

Activity & Fitness

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

Battery

Duration5 daysNA7 days24 days8 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/aNA208 x 208454 x 454260 x 260
Sizen/aNA1.04 inches1.39 inches1.3ionches
Touchn/aNA
TypeLEDNALCDAMOLEDMIP

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMNA5 ATM5 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aNABuilt-inBuild-inWear OS
Apps
Music

All Wearables