Garmin Forerunner 225 vs. Garmin Vivosmart HR vs. Garmin 645 Music vs. Samsung Gear 2 vs. Fitbit Charge 3

 
Forerunner 225
Vivosmart HR
645 Music
Gear 2
Charge 3
 GarminForerunner 225Remove Buy NowGarminVivosmart HRRemove Buy NowGarmin645 MusicRemove Buy NowSamsungGear 2Remove Buy NowFitbitCharge 3Remove Buy Now

Basic Info

Suggested Price$300$170$450$300$150
Release20152015201820142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration10 hours to 4 weeks5 days7 days2-3 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/an/aNA
Windowsn/an/aNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution180 x 180160 x 68240 x 240320 x 32066 x 18
Size1 inch1.08 inches1.2 inches1.63 inches.721 inches
Touch
Typen/an/aMIPSuper AMOLEDOLED

Functions

Audio Speaker22Bluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aTizen OSNA
Appsn/a
Musicn/a

All Wearables