Fitbit Ionic vs. Fitbit Flex vs. Garmin Vivosmart 3 vs. Apple Watch Series 4 vs. Fitbit Inspire HR

 
Ionic
Flex
Vivosmart 3
Watch Series 4
Inspire HR
 FitbitIonicRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy NowAppleWatch Series 4Remove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$299$100$139.99$329$99
Release20172013201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 days5 daysNot Yet5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250NA64 x 128384 x 480139 x 60
Size1.42NANA1.78 inches1.4 inches
TouchNA
TypeOLEDLEDOLEDMicroLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m1 ATM5 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNAWatch OS 5Fitbit OS
Apps
Music

All Wearables