Fitbit Alta vs. Fitbit Flex vs. Apple Watch Series 4 vs. Fitbit Inspire HR vs. Amazfit GTS

 
Alta
Flex
Watch Series 4
Inspire HR
GTS
 FitbitAltaRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowFitbitInspire HRRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$130$100$329$99$150
Release20162013201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 daysNot Yet5 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA384 x 480139 x 60348 x 442
Sizen/aNA1.78 inches1.4 inches1.65 inches
Touchn/aNA
TypeOLEDLEDMicroLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a1 ATMNot Yet5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aNAWatch OS 5Fitbit OSWear OS
Apps
Music

All Wearables