Apple Watch Series 2 vs. Fitbit Alta HR vs. Fitbit Flex vs. Apple Watch Series 5 vs. Garmin Vivosmart 4

 
Watch Series 2
Alta HR
Flex
Watch Series 5
Vivosmart 4
 AppleWatch Series 2Remove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 5Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$269$150$100$329$130
Release20162017201320192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days5 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312128 x 36NA384 x 48048 x 128
Size1.5 inches or 1.65 inches1.4 inchesNA1.78 Inches0.74 inches
TouchNA
TypeAMOLEDOLEDLEDMicroLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNAWatchOS 5
Apps
Music

All Wearables