Fitbit Flex 2 vs. Acer Liquid Leap vs. Garmin 645 Music vs. Fitbit Charge 3 vs. Garmin VivoActive 4

 
Flex 2
Liquid Leap
645 Music
Charge 3
VivoActive 4
 FitbitFlex 2Remove Buy NowAcerLiquid LeapRemove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge 3Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$90$450$150$349
Release20162015201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 to 7 days7 days7 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 32240 x 24066 x 18260 x 260
Sizen/a1 inch1.2 inches.721 inches1.3ionches
Touchn/a
TypeLEDOLEDMIPOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX45 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OS
Apps
Music

All Wearables