Forerunner 225 M400 Activite Steel Forerunner 235 Flex
  Garmin Forerunner 225 Remove Buy Now Polar M400 Remove Buy Now Withings Activite Steel Remove Buy Now Garmin Forerunner 235 Remove Buy Now Fitbit Flex Remove Buy Now

Basic Info

Suggested Price $300 $200 $170 $299.99 $100
Release 2015 2014 2015 2017 2013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart n/a
Oxygen
Sleep
Steps
Swim

Battery

Duration 10 hours to 4 weeks 8 hours to 30 days 8 months 9 days 5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a n/a NA
Mac n/a n/a
Windows n/a n/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 180 x 180 n/a n/a 215 x 180 NA
Size 1 inch n/a 1.3 inches 1.23 inches NA
Touch NA
Type n/a n/a Analog MIP LED

Functions

Audio Speaker 22 Alerts only
Clock
Phone n/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5 ATM 3 ATM 5 ATM 5 ATM 1 ATM

Notifications

Phone n/a
Emails n/a
Texts n/a

Software

Operating System n/a n/a n/a NA
Apps n/a
Music n/a

All Wearables