Fitbit Charge 2 vs. Fitbit Flex 2 vs. Apple Watch Series 2 vs. Fitbit Ionic vs. Asus VivoWatch

 
Charge 2
Flex 2
Watch Series 2
Ionic
VivoWatch
 FitbitCharge 2Remove Buy NowFitbitFlex 2Remove Buy NowAppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowAsusVivoWatchRemove Buy Now

Basic Info

Suggested Price$150$100$269$299$160
Release20162016201620172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days18 hours4+ days24 hours to 10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a340 x 272 or 390 x 312348x250128 x 128
Sizen/an/a1.5 inches or 1.65 inches1.42NA
Touchn/an/a
TypeOLEDLEDAMOLEDOLEDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistancen/a5 ATM5ATM50mIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OSFitbit OSKoodOS
Apps
Music

All Wearables