Garmin Fenix 3 vs. Polar M400 vs. Amazfit Arc vs. Fitbit Flex vs. Apple Watch 7

 
Fenix 3
M400
Arc
Flex
Watch 7
 GarminFenix 3Remove Buy NowPolarM400Remove Buy NowAmazfitArcRemove Buy NowFitbitFlexRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$500$200$69.99$100$429
Release20152014201620132021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygen
Sleep
Steps
Swim

Battery

Duration50 hours to 6 weeks8 hours to 30 days20 days5 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218n/a72 x40NA396 x 484
Size1.2 inchesn/a0.42 inchesNA1.9 inches
TouchNA
TypeChroma LEDn/aOLEDLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM3 ATMIP671 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNAWatchOS 8
Apps
Music

All Wearables