Fitbit Alta vs. Fitbit Charge 3 vs. Fitbit Charge HR vs. Fitbit Flex vs. Apple Watch Series 4

 
Alta
Charge 3
Charge HR
Flex
Watch Series 4
 FitbitAltaRemove Buy NowFitbitCharge 3Remove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$130$150$150$100$329
Release20162018201520132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days5 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a66 x 18NANA384 x 480
Sizen/a.721 inchesNANA1.78 inches
Touchn/aNANA
TypeOLEDOLEDOLEDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATM1 ATMNot Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aNANANAWatch OS 5
Apps
Music

All Wearables