Fitbit Flex 2 vs. Apple Watch Series 2 vs. Garmin 645 Music vs. Garmin Fenix 5x Plus vs. Amazfit GTR

 
Flex 2
Watch Series 2
645 Music
Fenix 5x Plus
GTR
 FitbitFlex 2Remove Buy NowAppleWatch Series 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminFenix 5x PlusRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$269$450$850$199
Release20162016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours7 days20 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a340 x 272 or 390 x 312240 x 240240 x 240454 x 454
Sizen/a1.5 inches or 1.65 inches1.2 inches1.2 inches1.39 inches
Touchn/a
TypeLEDAMOLEDMIPMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5ATM5 ATM10 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWear OSBuild-in
Apps
Music

All Wearables