Apple Watch Series 2 vs. Amazfit Stratos vs. Diesel On Full Guard vs. Fitbit Flex vs. Apple Watch Series 4

 
Watch Series 2
Stratos
On Full Guard
Flex
Watch Series 4
 AppleWatch Series 2Remove Buy NowAmazfitStratosRemove Buy NowDieselOn Full GuardRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$269$199$325$100$329
Release20162018201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days1 day5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 300454 x 454NA384 x 480
Size1.5 inches or 1.65 inches1.34 inches1.4 inchesNA1.78 inches
TouchNA
TypeAMOLEDOLEDOMOLEDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM5 ATMIP671 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSProprietaryAndroid Wear 2.0NAWatch OS 5
Apps
Music

All Wearables