Apple Watch Series 3 vs. Fitbit Zip vs. Apple Watch Series 2 vs. Fitbit Alta HR vs. Apple Watch 7

 
Watch Series 3
Zip
Watch Series 2
Alta HR
Watch 7
 AppleWatch Series 3Remove Buy NowFitbitZipRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitAlta HRRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$329$60$269$150$429
Release20172012201620172021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours6 months18 hours7 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a340 x 272 or 390 x 312128 x 36396 x 484
Size1.5 inches or 1.65 inchesn/a1.5 inches or 1.65 inches1.4 inches1.9 inches
Touch
TypeAMOLEDn/aAMOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplash Resistant5ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aWatch OSWatchOS 8
Apps
Music

All Wearables