User's Manual

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TrackingSleep
SliptheFitbitOneinto your wristbandatnightto record howlongand wel lyou sleep.
Overtime,youcanapplywhatyoulearn to helpyousleepmoresoundly.
Torecordyoursleep, dothe fol lowing:
1.Placethetracker into theslotonthewristbandandwraptheit around yournon‐ dominantwrist.
2.Onceyou areinbedandreadyto fal lasl eep ,pressandholdthetracker’sbuttonfor2+seconds.
You wil lseeastopwatch.Theothericonswil l bl ink,ind icat ingthatyouarein sleep mode.
3.Whenyou wakeup,press and holdthebutton for 2+ seconds tostopthesleeprecord ing.The icons
wil lstopbl inkingtoindicateyou’veexitedsleep mode.Onceyouexitsleep mode,theFitbit One wil l
resumedisplayingyourdailytotals. 
4.Oncethedatasyncs,graphsonyour Dashboardwil lrevealhowlongyou sleptandthe numberof
timesyou wokeup,givingyoudetails about your sleep. Lastnight’ssleepwil lappearon today’spage.
*If youforgottopressthebuttonon yourtracker,butwerewearingitwhileyouslept,youcanenterthe
timesmanual lyonthe Track My Sleeppageandyourdatawillstil lappearonce you syncyourtracker.
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GeneralFitbitOneInformation
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BatteryLifeandPo w er 
TheFitbit Oneispoweredby a rechargeable Lithium‐ionpolymer battery,which isbuiltintothe device.
Itshouldbechargedwiththechargingcable,whichplugsintoyour computer’sUSB portandcanalso
bepluggedintoanychargingdevicethathasaUSBport. A batteryind icatorwil l appearonyour tracker
whenitis firstpluggedintothechargingcable. Youcan press the tracker’sbuttonwhileitischargingto
seeits currentbatterylevel.
Ifyoupress yourtracker’sbutton and do notseeanythingil lu minate,orifyousee alow orempty
batterysymbolon your tracker’sdisplay,plugthetrackerinto thecharging cable. Ideal ly,anempty
trackershould be charged for1–2hoursformaximumperformanceandbatterylife.Thebatterytypically
lasts 5–7daysbetweencharges.
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Memory
We recommendsyncingyourdataregularly,though as longasthe Fitbit One hasbatterypower, it
tracksupto 7 daysof detailed, minute‐ by‐ minutedata.Thetrackerwil l  saveasummaryofyourdaily
calories,distance,floors cl imbed,andstepstakenforup to 30 daysbetweensyncs.
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Sensors& Motors
TheFitbit OneusesaMEMS3‐ axis accelerometerthatmeasuresyourmot ionpatterns to determine
yourcaloriesburned,distancetraveled,stepstaken,and sleep qual ity.Its al t i meteralsomeasuresstairs
climbed.TheFitbitOnecontainsa cyl indricalvibrat ion motor,whichal lowsittovibratewhenalarms are
setto gooff.
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