Fitbit Alta vs. Fitbit Flex 2 vs. Fitbit Charge HR vs. Apple Watch Series 4 vs. Fitbit Inspire HR

 
Alta
Flex 2
Charge HR
Watch Series 4
Inspire HR
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowFitbitCharge HRRemove Buy NowAppleWatch Series 4Remove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$130$100$150$329$99
Release20162016201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days5 daysNot Yet5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/aNA384 x 480139 x 60
Sizen/an/aNA1.78 inches1.4 inches
Touchn/an/aNA
TypeOLEDLEDOLEDMicroLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aNAWatch OS 5Fitbit OS
Apps
Music

All Wearables