Samsung Gear S2 vs. Fitbit Zip vs. Garmin Vivosmart vs. Garmin 645 Music

 
Gear S2
Zip
Vivosmart
645 Music
 SamsungGear S2Remove Buy NowFitbitZipRemove Buy NowGarminVivosmartRemove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$300$60$170$450
Release2015201220142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days6 months7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a128 x 16240 x 240
Size1.2 inchesn/a1.41 inches1.2 inches
Touch
TypeSuper AMOLEDn/aOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68Splash Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/an/a
Apps
Music

All Wearables