Apple Watch Series 3 vs. Fitbit Alta vs. Amazfit Cor vs. Fitbit Charge vs. Fitbit Flex

 
Watch Series 3
Alta
Cor
Charge
Flex
 AppleWatch Series 3Remove Buy NowFitbitAltaRemove Buy NowAmazfitCorRemove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$329$130$79.99$130$100
Release20172016201820142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days12 days7-10 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a80 x 160NANA
Size1.5 inches or 1.65 inchesn/a1.23 inchesNANA
Touchn/aNANA
TypeAMOLEDOLEDIPS LCDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM1 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemWatchOS 4n/aNANA
Apps
Music

All Wearables