Fitbit Alta vs. Fitbit Flex 2 vs. Fitbit One vs. Garmin Forerunner 235 vs. Apple Watch Series 4

 
Alta
Flex 2
One
Forerunner 235
Watch Series 4
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowGarminForerunner 235Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$130$100$100$299.99$329
Release20162016201220172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days10-14 days9 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a215 x 180384 x 480
Sizen/an/an/a1.23 inches1.78 inches
Touchn/an/a
TypeOLEDLEDOLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMSplast Resistant5 ATMNot Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/an/aWatch OS 5
Apps
Music

All Wearables