Garmin Forerunner 225 vs. Samsung Gear S vs. Fitbit Alta vs. Garmin Forerunner 935 vs. Garmin 645 Music

 
Forerunner 225
Gear S
Alta
Forerunner 935
645 Music
 GarminForerunner 225Remove Buy NowSamsungGear SRemove Buy NowFitbitAltaRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$300$250$130$500$450
Release20152013201620172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeksn/a5 daysUp to 2 weeks7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180480 x 360n/a240 x 240240 x 240
Size1 inch2 inchesn/a1.2 inches1.2 inches
Touchn/a
Typen/aSuper AMOLEDOLEDLCDMIP

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP67n/a5 ATM5 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating Systemn/aTizenn/a
Appsn/a
Musicn/a

All Wearables