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{{Tool Infobox
{{Tool Infobox
|Related topics=Dates and Times, Activity tracking, Sleep tracking, Body temperature tracking, Heart rate tracking
|Related topics=Dates and Times
}}
}}
[[Category:Tool]]
Fitbit is an a manufacturer of wearable devices and provider of fitness/wellness related services. Since 2009 they have released a large variety of different activity trackers and smart watches with different form factors and sensors, as well as a range of smart scales. Many have been used and validated in research.<ref>https://www.fitabase.com/research-library/?searchString=&category=Validation</ref> In 2019, Fitbit introduced a subscription model called [https://investor.fitbit.com/press-releases/press-release-details/2019/Fitbit-Launches-Fitbit-Premium-New-Health-and-Fitness-Subscription-Service/default.aspx ''Fitbit Premium'' for which the company charges ~10 USD/month for access to particular metrics], such as advanced body temperature details or stress.
== Data collected by Fitbits ==
Given the large variety of different models and series of Fitbit devices (see table below), details between models change. But virtually all recent Fitbit devices record at least the following:
* [[Activity tracking]]
** Steps taken
** Floors climbed
** [[Heart rate tracking|Heart rate metrics]] (Heart rate throughout day, resting heart rate, [[HRV (Heart Rate Variability)|heart rate variability]], recording of workouts)
* [[Sleep tracking]]
** Time slept
** Sleep phases throughout the night
The table below [https://en.wikipedia.org/wiki/List_of_Fitbit_products is taken from Wikipedia]
Additionally, more recent Fitbits also record additional metrics, such as
* [[Skin Temperature]]
* [[ECG]]
* Stress tracking
== Exporting Fitbit data ==
Fitbit allows the export of up to 31 days of data – aggregated into daily statistics – [https://www.fitbit.com/settings/data/export through their website]. Additionally, Fitbit provides an API that allows users to authorize third parties to export their own data. This integration does not have a limit for how much historic data can be exported. By default this API is also limited to daily aggregate values, but a ''personal API'' is available, which does provide access to intra-day resolution data.
=== Data export through Fitbit API ===
The [https://dev.fitbit.com/apps Fitbit web API] allows you to register your own ''app'', which means that you can create the necessary authentications to access your full data through third-party tools or your own scripts. For some programming languages, such as Python and R, there are ready-made libraries that one can use to access data from Fitbit.
====Exporting with a Python library====
The [https://github.com/orcasgit/python-fitbit ''python-fitbit'' library] provides access to most data that your Fitbit collects. A recent [https://towardsdatascience.com/using-the-fitbit-web-api-with-python-f29f119621ea guide on how to set it up can be found on Towards Data Science].
==== Exporting with an R library ====
[https://github.com/teramonagi/fitbitr ''Fitbitr'' is a library for the R] programming language that provides the same functionality as the Python modules outlined above. The README of the package [https://github.com/teramonagi/fitbitr/blob/master/README.md gives a good getting-started guide].
==== Exporting through Open Humans ====
[[Open Humans]] provides two different integrations that enable the export of all historic Fitbit data into a user's private storage with low effort. The regular [https://fitbit.openhumans.org/ Fitbit API integration] does not require any complicated setup on the user end, but is limited to daily aggregate data. The more detailed [https://fitbit-intraday.openhumans.org/ Fitbit Intraday Connection] requires setting up a ''personal Fitbit API app'', but requires no coding of data export functions after this setup.
== Personal Science projects that used Fitbits ==
This is to be considered a living and non-exhaustive list:
* [[User:Gedankenstuecke|Bastian Greshake Tzovaras]] used Fitbit trackers and scales to explore
** [https://tzovar.as/phd-survival-guide/ how the final writing period for his PhD thesis changed his physical activity and weight]
** [https://tzovar.as/on-getting-sleep/ how sleeping alone vs. sleeping with someone else in the same bed effects his sleep patterns]
* Jakob Eg Larsen [https://quantifiedself.com/show-and-tell/?project=1082 compared sleep and heart rate data from two Fitbit devices, an Oura Ring, and a Basis Smartwatch]
==Overview of fitness tracker / smartwatches ==
The table below [[wikipedia:List_of_Fitbit_products|is taken from Wikipedia]]. It does not include the smart scales.
{| class="wikitable sortable"
{| class="wikitable sortable"
!Model
! Model
!Type
!Type
!Released
!Released
!GPS
!GPS
!Stress Tracking
!Stress Tracking
!ECG<ref name=":0" />
!ECG<ref>https://mobilesyrup.com/2020/09/16/fitbit-sense-ecg-feature-available-launch-not-canada/</ref>
!Fitbit OS
!Fitbit OS
!Water resistance
!Water resistance
!Battery life
!Battery life
!AOD
!AOD<ref>Always On Display</ref>
!Customizable<br/>appearance<!-- as in, changeable bands or holders -->
!Customizable<br />appearance<!-- as in, changeable bands or holders -->
|-
|-
|Classic
|Classic
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|-
|-
|Ace
| Ace
|Wristband
|Wristband
|2018
|2018
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|Waterproof, {{convert|50|meters|abbr=on}}
|Waterproof, 50 meters
|7 days
|7 days
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|Waterproof, {{convert|50|meters|abbr=on}}
|Waterproof, 50 meters
|5 days
|5 days
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|Waterproof, {{convert|50|meters|abbr=on}}
|Waterproof, 50 meters
|3 hours (GPS)<br/>7 days (advertised)
|3 hours (GPS)<br />7 days (advertised)
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|-
|-
|Versa 3
|Versa 3
|Smart watch
| Smart watch
|2020
|2020
|{{ya}}
|{{ya}}
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|Waterproof, {{convert|50|meters|abbr=on}}
|Waterproof, 50 meters
|TBD (GPS)<br/>6 days (advertised)<br/>Fast charge one extra day in 12 minutes
|TBD (GPS)<br />6 days (advertised)<br />Fast charge one extra day in 12 minutes
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|Waterproof, {{convert|50|meters|abbr=on}}
|Waterproof, 50 meters
|TBD (GPS)<br/>6+ days (advertised)<br/>Fast charge one extra day in 12 minutes<br/>Full charge in 1-2 hours (manufacturer's claim)
|TBD (GPS)<br />6+ days (advertised)<br />Fast charge one extra day in 12 minutes<br />Full charge in 1-2 hours (manufacturer's claim)
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|Waterproof, {{convert |50|meters|abbr=on}}
|Waterproof, 50 meters
|10 days
|10 days
|{{na}}
|{{na}}
|{{na}}
|{{na}}
|{{ya}}
|{{ya}}
|Waterproof, {{convert |50|meters|abbr=on}}
|Waterproof, 50 meters
|5 days
|5 days
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|Waterproof, {{convert |50|meters|abbr=on}}
|Waterproof, 50 meters
|7 days
|7 days
|{{ya}}
|{{ya}}
|{{ya}}
|{{ya}}
|}
|}
<references />
[[Category:Tools]][[Category:Hardware]][[Category:Sleep tracking tools]][[Category:Fitness and heart rate tracking tools]][[Category:Body temperature tracking tools]]