Fitbit Alta vs. Amazfit Stratos vs. Diesel On Full Guard vs. Apple Watch Series 4 vs. Amazfit GTR

 
Alta
Stratos
On Full Guard
Watch Series 4
GTR
 FitbitAltaRemove Buy NowAmazfitStratosRemove Buy NowDieselOn Full GuardRemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$130$199$325$329$199
Release20162018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days1 dayNot Yet24 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300454 x 454384 x 480454 x 454
Sizen/a1.34 inches1.4 inches1.78 inches1.39 inches
Touchn/a
TypeOLEDOLEDOMOLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP67Not Yet5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aProprietaryAndroid Wear 2.0Watch OS 5Build-in
Apps
Music

All Wearables