Garmin Forerunner 225 vs. Fitbit Alta vs. Fitbit Flex vs. Polar A370 vs. Garmin Vivosmart 4

 
Forerunner 225
Alta
Flex
A370
Vivosmart 4
 GarminForerunner 225Remove Buy NowFitbitAltaRemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$300$130$100$179.95$130
Release20152016201320172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 days5 daysUp to 3 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/aNA160 x 8048 x 128
Size1 inchn/aNA1.18 inches0.74 inches
Touchn/aNA
Typen/aOLEDLEDTFT LCDOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a1 ATMWR305 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating Systemn/an/aNA
Appsn/a
Musicn/a

All Wearables