Garmin Forerunner 225 vs. Olio Model One vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Fitbit Flex

 
Forerunner 225
Model One
Forerunner 935
645 Music
Flex
 GarminForerunner 225Remove Buy NowOlioModel OneRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$595$500$450$100
Release20152015201720182013

Activity & Fitness

Caloriesn/a
Cycling (Bicycling)n/a
Distancen/a
Heartn/a
Oxygenn/a
Sleepn/a
Stepsn/a
Swimn/a

Battery

Duration10 hours to 4 weeks2 daysUp to 2 weeks7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPSn/a
NFCn/a
Wi-Fi

Display

Color
Resolution180 x 180n/a240 x 240240 x 240NA
Size1 inchn/a1.2 inches1.2 inchesNA
TouchNA
Typen/an/aLCDMIPLED

Functions

Audio Speaker22n/a
Clock
Phonen/an/a
Vibrationn/a
Voice

Hardware

Accelerometern/a
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM1 ATM

Notifications

Phonen/an/a
Emailsn/a
Textsn/a

Software

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

All Wearables