Fitbit Flex 2 vs. Fitbit One vs. Apple Watch vs. Garmin Forerunner 235 vs. Polar A370

 
Flex 2
One
Watch
Forerunner 235
A370
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowAppleWatchRemove Buy NowGarminForerunner 235Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$100$349$299.99$179.95
Release20162012201520172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days18 hours9 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a340 x 272 or 390 x 312215 x 180160 x 80
Sizen/an/a1.5 inches or 1.65 inches1.23 inches1.18 inches
Touchn/a
TypeLEDOLEDAMOLEDMIPTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast ResistantIPX75 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OS
Apps
Music

All Wearables