Apple Watch Series 3 vs. Amazfit Stratos vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Fitbit Sense 2

 
Watch Series 3
Stratos
Flex
Forerunner 45
Sense 2
 AppleWatch Series 3Remove Buy NowAmazfitStratosRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$329$199$100$199$300
Release20172018201320192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days7 days6 days
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 300NA208 x 208336x336
Size1.5 inches or 1.65 inches1.34 inchesNA1.04 inches1.59 inches
TouchNA
TypeAMOLEDOLEDLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4ProprietaryNABuilt-in
Apps
Music

All Wearables