Fitbit Alta vs. Amazfit Stratos vs. Fitbit Alta HR vs. Diesel On Full Guard 2.5 vs. Apple Watch 8

 
Alta
Stratos
Alta HR
On Full Guard 2.5
Watch 8
 FitbitAltaRemove Buy NowAmazfitStratosRemove Buy NowFitbitAlta HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$130$199$150$325$499
Release20162018201720182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days4 days18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300128 x 36454x454340 x 272 or 390 x 312
Sizen/a1.34 inches1.4 inches1.39 inches1.5 inches or 1.65 inches
Touchn/a
TypeOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aProprietaryWear OSWatchOS 9
Apps
Music

All Wearables