Fitbit Blaze vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Garmin 645 Music vs. Amazfit GTR

 
Blaze
Flex 2
Stratos
645 Music
GTR
 FitbitBlazeRemove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$200$100$199$450$199
Release20162016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days5 days5 days7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialn/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 300240 x 240454 x 454
Sizen/an/a1.34 inches1.2 inches1.39 inches
Touchn/a
TypeLCDLEDOLEDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aProprietaryBuild-in
Apps
Music

All Wearables