Fitbit Flex 2 vs. Fitbit Charge vs. Apple Watch Series 4 vs. HTC re Grip vs. Fitbit Inspire 3

 
Flex 2
Charge
Watch Series 4
re Grip
Inspire 3
 FitbitFlex 2Remove Buy NowFitbitChargeRemove Buy NowAppleWatch Series 4Remove Buy NowHTCre GripRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$100$130$329$199$100
Release20162014201820202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7-10 daysNot Yet5 hours to 2.5 days10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/aNA384 x 480160 x 3232x18
Sizen/aNA1.78 inches1.8 inches46 inches
Touchn/aNA
TypeLEDOLEDMicroLEDPMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNot YetIP575 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatch OS 5NA
Apps
Music

All Wearables