Fitbit Flex 2 vs. Garmin Vivosmart vs. Amazfit Stratos vs. Garmin Forerunner 235 vs. Fitbit Flex

 
Flex 2
Vivosmart
Stratos
Forerunner 235
Flex
 FitbitFlex 2Remove Buy NowGarminVivosmartRemove Buy NowAmazfitStratosRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$100$170$199$299.99$100
Release20162014201820172013

Activity & Fitness

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

Battery

Duration5 days7 days5 days9 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 16320 x 300215 x 180NA
Sizen/a1.41 inches1.34 inches1.23 inchesNA
Touchn/aNA
TypeLEDOLEDOLEDMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aProprietaryNA
Apps
Music

All Wearables