Fitbit Flex 2 vs. Garmin Vivosmart HR vs. Pebble Core vs. Garmin Forerunner 45 vs. Amazfit GTS

 
Flex 2
Vivosmart HR
Core
Forerunner 45
GTS
 FitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowPebbleCoreRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$170$99$199$150
Release20162015201620192019

Activity & Fitness

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

Battery

Duration5 days5 daysNA7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 68NA208 x 208348 x 442
Sizen/a1.08 inchesNA1.04 inches1.65 inches
Touchn/aNA
TypeLEDn/aNALCDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

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

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/an/aNABuilt-inWear OS
Apps
Music

All Wearables