Apple Watch Series 3 vs. Fitbit Flex 2 vs. LG Watch Sport vs. Fitbit Alta HR vs. Apple Watch Series 4

 
Watch Series 3
Flex 2
Watch Sport
Alta HR
Watch Series 4
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowLGWatch SportRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$329$100$349$150$329
Release20172016201620172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days1.45 days7 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a480 x 480128 x 36384 x 480
Size1.5 inches or 1.65 inchesn/a1.38 inches1.4 inches1.78 inches
Touchn/a
TypeAMOLEDLEDP-OLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP68Not Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aAndroid Wear 2Watch OS 5
Apps
Music

All Wearables