Fitbit Flex 2 vs. Amazfit Stratos vs. Garmin 645 Music vs. LG G Watch R vs. Amazfit GTR

 
Flex 2
Stratos
645 Music
G Watch R
GTR
 FitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowGarmin645 MusicRemove Buy NowLGG Watch RRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$199$450$300$199
Release20162018201820142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days2 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 300240 x 240320 x 320454 x 454
Sizen/a1.34 inches1.2 inches1.3 inches1.39 inches
Touchn/a
TypeLEDOLEDMIPP-OLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryAndroid WearBuild-in
Apps
Music

All Wearables