Fitbit Alta vs. Apple Watch Series 2 vs. Asus VivoWatch vs. Fitbit Flex vs. Apple Watch Series 4

 
Alta
Watch Series 2
VivoWatch
Flex
Watch Series 4
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowAsusVivoWatchRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$130$269$160$100$329
Release20162016201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours24 hours to 10 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312128 x 128NA384 x 480
Sizen/a1.5 inches or 1.65 inchesNANA1.78 inches
Touchn/aNA
TypeOLEDAMOLEDNALEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistancen/a5ATMIP671 ATMNot Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSKoodOSNAWatch OS 5
Apps
Music

All Wearables