Pebble 2 vs. Samsung Gear S2 vs. Garmin 645 Music vs. Garmin Vivofit 4

 
2
Gear S2
645 Music
Vivofit 4
 Pebble2Remove Buy NowSamsungGear S2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$129$300$450$79.95
Release2016201520182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2-3 days7 days1 year
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolutionn/a360 x 360240 x 24088 x 88
Sizen/a1.2 inches1.2 inchesNA
Touch
Typee-paperSuper AMOLEDMIPNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSTizen
Apps
Music

All Wearables