Apple Watch Series 3 vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Apple Watch vs. Apple Watch Series 5

 
Watch Series 3
Flex 2
Stratos
Watch
Watch Series 5
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowAppleWatchRemove Buy NowAppleWatch Series 5Remove Buy Now

Basic Info

Suggested Price$329$100$199$349$329
Release20172016201820152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days18 hoursNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a320 x 300340 x 272 or 390 x 312384 x 480
Size1.5 inches or 1.65 inchesn/a1.34 inches1.5 inches or 1.65 inches1.78 Inches
Touchn/a
TypeAMOLEDLEDOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATMIPX7Not Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aProprietaryWatch OSWatchOS 5
Apps
Music

All Wearables