Fitbit Alta vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Pebble Core

 
Alta
Flex 2
645 Music
Vivofit 4
Core
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowPebbleCoreRemove Buy Now

Basic Info

Suggested Price$130$100$450$79.95$99
Release20162016201820182016

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration5 days5 days7 days1 yearNA
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 24088 x 88NA
Sizen/an/a1.2 inchesNANA
Touchn/an/aNA
TypeOLEDLEDMIPNANA

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM5 ATMNA

Notifications

PhoneNA
Emailsn/aNA
TextsNA

Software

Operating Systemn/an/aNA
Apps
Music

All Wearables