Fitbit Flex 2 vs. Amazfit Cor vs. Diesel On Full Guard vs. Garmin 645 Music vs. Garmin Forerunner 45

 
Flex 2
Cor
On Full Guard
645 Music
Forerunner 45
 FitbitFlex 2Remove Buy NowAmazfitCorRemove Buy NowDieselOn Full GuardRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$79.99$325$450$199
Release20162018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days1 day7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160454 x 454240 x 240208 x 208
Sizen/a1.23 inches1.4 inches1.2 inches1.04 inches
Touchn/a
TypeLEDIPS LCDOMOLEDMIPLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0Built-in
Apps
Music

All Wearables