Difference between revisions of "Apple Watch"

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The '''Apple Watch''' is a wearable smart watch introduced by Apple in 2015 which includes a number of sensors that can be used for personal science. 
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{{Tool Infobox  
 
{{Tool Infobox  
 
|Related topics=HRV (Heart Rate Variability), Activity tracking, Sleep tracking, Oxygen saturation
 
|Related topics=HRV (Heart Rate Variability), Activity tracking, Sleep tracking, Oxygen saturation
 
}}
 
}}
  
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The Apple Watch is a wearable smart watch introduced by Apple in 2015 which includes a number of sensors useful for doing personal science. Since the first release, Apple Watches include a heart rate sensor and accelerometers/gyroscopes for [[activity tracking]]. Since 2020, some Apple Watch models also do rudimentary [[sleep tracking]], though the capabilities are still somewhat behind other wearables. Since the 4th generation, Apple Watches also include an [[ECG]] sensor that can be used to take manual readings and since the 6th generation they it includes a [[Oxygen saturation|Blood oxygen]] sensor. Beyond this, the Apple Watch also uses its microphone to regularly record environmental noise levels.  
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Since the first release, Apple Watches include a heart rate sensor and accelerometers/gyroscopes for [[activity tracking]]. Since 2020, some Apple Watch models can also do rudimentary [[sleep tracking]].
 +
 
 +
Since the 4th generation, Apple Watches also include an [[ECG]] sensor that can be used to take manual readings and since the 6th generation they it includes a [[Oxygen saturation|Blood oxygen]] sensor, though this has been disabled in recent models sold in the USA due to patent issues<ref>https://www.theverge.com/2024/1/17/24041945/apple-watch-series-9-ultra-2-blood-oxygen-ban</ref>.
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Beyond this, the Apple Watch also uses its microphone to regularly record environmental noise levels.  
  
 
==Data storage and export==
 
==Data storage and export==
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* [[User:Gedankenstuecke|Bastian Greshake Tzovaras]] used the environmental noise data to explore [https://forums.openhumans.org/t/headphone-vs-environmental-noise-levels/241 how the sound of his surroundings shape how loud he plays music on his headphones].
 
* [[User:Gedankenstuecke|Bastian Greshake Tzovaras]] used the environmental noise data to explore [https://forums.openhumans.org/t/headphone-vs-environmental-noise-levels/241 how the sound of his surroundings shape how loud he plays music on his headphones].
 
** He also used environmental noise data together with location data from [[Overland]] to [https://exploratory.openhumans.org/notebook/77/ explore how sound levels change throughout the city].
 
** He also used environmental noise data together with location data from [[Overland]] to [https://exploratory.openhumans.org/notebook/77/ explore how sound levels change throughout the city].
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** He recently adapted his website to [https://tzovar.as/exporting-data-apple-health/ show metrics from Apple Health (incl. from his Apple Watch) in the website footer].
 +
 
==Sensors in different Apple Watch series==
 
==Sensors in different Apple Watch series==
  
 
The table below is an abridged version of the [https://en.wikipedia.org/wiki/Apple_Watch#Comparison_of_models one found on Wikipedia], focusing on the sensors that are used on the different Apple Watch series.
 
The table below is an abridged version of the [https://en.wikipedia.org/wiki/Apple_Watch#Comparison_of_models one found on Wikipedia], focusing on the sensors that are used on the different Apple Watch series.
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{| class="wikitable mw-collapsible" style="text-align:center; font-size:90%"
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{| class="wikitable"
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! colspan="2" | Specification
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!Legend:
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! style="background:#ff9999" |1st
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|{{legend2|silver|{{abbr|Discontinued and unsupported|Device is discontinued and no longer sold}}|border=1px solid #AAAAAA}}
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! style="background:#ffdddd" |Series 1
−
|{{legend2|#f8eaba|{{abbr|Discontinued, but still supported |Discontinued older device versions, not currently being sold but still supported.}}|border=1px solid #AAAAAA}}
+
! style="background:#ffdddd" |Series 2
−
|{{legend2|#a4f4a4|{{abbr|Current|Current versions of devices being sold.}}|border=1px solid #AAAAAA}}
+
! style="background:#ddd" | Series 3
−
|}
+
! style="background:#f8eaba" |Series 4
−
 
+
! style="background:#f8eaba" |Series 5
−
{| class="wikitable" style="text-align:center; font-size:90%;"
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! style="background:#f8eaba" |SE (1st)
−
!Specification<ref name="appleWatchCompare">https://www.apple.com/watch/compare/</ref>
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! style="background:#f8eaba" |Series 6
−
! style="background:silver;" |1st generation<ref name="appleWatch0TS">https://support.apple.com/kb/SP735</ref>
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! style="background:#f8eaba" |Series 7
−
! style="background:silver;" |2nd generation (Series 1)<ref name="appleWatchCompare" />
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! style="background:#d4f4b4" |SE (2nd)
−
! style="background:silver;" |2nd generation (Series 2)<ref name="appleWatchCompare" />
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! style="background:#f8eaba" |Series 8
−
! style="background:silver;" |3rd generation (Series 3)<ref name="appleWatch3TS">https://support.apple.com/kb/SP766</ref><ref name="appleWatchCompare" />
+
! style="background:#f8eaba" |Ultra
−
! style="background:#f8eaba;" |4th generation (Series 4)<ref name="appleWatchCompare" />
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! style="background:#d4f4b4" |Series 9
−
! style="background:#f8eaba;" |5th generation (Series 5)<ref name="appleWatchCompare" />
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! style="background:#d4f4b4" |Ultra 2
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! style="background:#a4f4a4;" |6th generation (SE)
 
−
! style="background:#f8eaba;" |6th generation (Series 6)
 
−
! style="background:#a4f4a4;" |7th generation (Series 7)
 
−
! style="background:#a4f4a4;" |8th generation (Series 8)<ref name="appleWatch8TS">https://support.apple.com/kb/SP878?</ref>
 
 
|-
 
|-
−
![[Water Resistant mark|Water resistance]]<ref name="appleWatchCompare" />
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! rowspan="10" |Sensors
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| colspan="2" |[[IP Code|IPX7]] splash resistant (up to 1 meter)<ref name="appleWatch0TS" /><ref name="appleWatchCompare" />
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![[Heart rate tracking|Optical heart sensor]]
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| colspan="8" |[[International Organization for Standardization|ISO]] 22810:2010 water resistant (up to 50&nbsp;meters)<ref name="appleWatch3TS" /><ref name="appleWatchCompare" />
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| colspan="4" |1st generation
 +
| colspan="3" |2nd generation
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| colspan="2" |3rd generation
 +
|2nd generation
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| colspan="4" |3rd generation
 
|-
 
|-
−
![[Heart rate monitor|Optical heart sensor]]<ref name="appleWatchCompare" />
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![[Heart rate tracking|Electrical heart sensor (ECG/EKG)]]
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| colspan="4" | 1st generation<ref name="appleWatch0TS" /><ref name="appleWatch3TS" /><ref name="appleWatchCompare" />
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| colspan="4" |No
−
| colspan="3" | 2nd generation<ref name="Apple:Apple Watch Series 5 Technical Specifications">https://support.apple.com/kb/SP808</ref><ref name="Apple:Apple Watch SE Technical Specifications">https://support.apple.com/kb/SP827</ref>
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| colspan="2" |Yes
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| colspan="3" | 3rd generation<ref name="Apple:Apple Watch Series 6 Technical Specifications">https://support.apple.com/kb/SP826</ref><ref name="Apple:Apple Watch Series 7 Technical Specifications">https://support.apple.com/kb/SP860</ref>
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|No
 +
| colspan="2" |Yes
 +
|No
 +
| colspan="4" |Yes
 
|-
 
|-
−
![[Electrocardiography|Electrical heart sensor (ECG/EKG)]]<ref name="appleWatchCompare" />
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![[Oxygen saturation]]
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| colspan="4" |No<ref name="appleWatchCompare" />
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| colspan="7" |No
−
| colspan="2" |Yes<ref name="appleWatchCompare" />
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| colspan="2" |Yes
 
|No
 
|No
−
| colspan="3" |Yes
+
| colspan="2" |Yes
 +
| colspan="2" |Yes (Disabled for U.S. models sold from January 18, 2024)
 +
|-
 +
![[Body temperature tracking|Temperature sensor]]
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| colspan="10" |No
 +
| colspan="4" |Yes
 
|-
 
|-
−
![[Oxygen saturation (medicine)|Blood oxygen sensor]]<ref name="appleWatchCompare" />
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![[Accelerometer]]
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| colspan="7" |No<ref name="appleWatchCompare" />
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| colspan="4" |16g
−
| colspan="3" |Yes<ref name="appleWatchCompare" />
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| colspan="5" |32g
 +
| colspan="5" |High-g
 
|-
 
|-
−
![[Accelerometer]]<ref name="appleWatchCompare" />
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![[Gyroscope]]
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| colspan="4" |16g<ref name="appleWatch0TS" /><ref name="appleWatch3TS" /><ref name="appleWatchCompare" />
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| colspan="4" |Yes
−
| colspan="5" |32g<ref name="appleWatchCompare" />
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| colspan="5" |Improved
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|256g
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| colspan="5" |High dynamic range
 
|-
 
|-
−
![[Gyroscope]]<ref name="appleWatchCompare" />
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![[Ambient light sensor]]
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| colspan="4" |Yes<ref name="appleWatch0TS" /><ref name="appleWatch3TS" /><ref name="appleWatchCompare" />
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| colspan="14" |Yes
−
| colspan="6" |Improved<ref name="appleWatchCompare" />
 
 
|-
 
|-
−
![[Altimeter]]<ref name="appleWatchCompare" />
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![[Altimeter]]
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| colspan="3" |No<ref name="appleWatch0TS" /><ref name="appleWatchCompare" />
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| colspan="3" |No
−
| colspan="3" |Yes<ref name="appleWatch3TS" /><ref name="appleWatchCompare" />
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| colspan="3" |Yes
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| colspan="4" |Always on<ref name="appleWatch3TS" /><ref name="appleWatchCompare" />
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| colspan="8" |Always on
 
|-
 
|-
 
![[Compass]]
 
![[Compass]]
 
| colspan="5" |No
 
| colspan="5" |No
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| colspan="5" |Yes<ref name="autogenerated1">https://support.apple.com/kb/SP808?locale=en_US</ref>
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| colspan="9" |Yes
 
|-
 
|-
−
!Introduced
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!Battery life
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|April 2015
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|24h
−
| colspan="2" |September 2016
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|24h
−
|September 2017
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|24h
−
|September 2018
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|24h
−
|September 2019
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|18h
−
| colspan="2" |September 2020
+
|18h
−
|September 2021
+
|18h
−
|September 2022
+
|18h
 +
|18h
 +
|18h
 +
|18h
 +
|36h
 +
|18h
 +
|36h
 
|-
 
|-
−
!Discontinued
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! colspan="2" |Date released
−
|September 2016
+
|April 24, 2015
−
|September 2018
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|September 12, 2016
−
|September 2017
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|September 16, 2016
−
|September 2022
+
|September 22, 2017
−
|September 2019
+
|September 21, 2018
−
|September 2020
+
|September 25, 2019
−
|In Production
+
| colspan="2" |September 18, 2020
−
|September 2021
+
|October 15, 2021
−
|September 2022
+
| colspan="2" |September 16, 2022
−
|In Production
+
|September 23, 2022
 +
| colspan="2" |September 22, 2023
 +
|- }
 +
 
 
|}
 
|}
  
 
== References ==
 
== References ==
 
<references />
 
<references />
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[[Category:Body temperature tracking tools]]
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[[Category:Tools]]
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[[Category:Tools]][[Category:Hardware]][[Category:Sleep tracking tools]][[Category:Fitness and heart rate tracking tools]][[Category:Blood testing and tracking tools]]
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[[Category:Fitness and heart rate tracking tools]]
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[[Category:Sleep tracking tools]]
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[[Category:Hardware]]

Latest revision as of 17:41, 25 April 2024

The Apple Watch is a wearable smart watch introduced by Apple in 2015 which includes a number of sensors that can be used for personal science.

Tool Infobox Question-icon.png
Related topics HRV (Heart Rate Variability), Activity tracking, Sleep tracking, Oxygen saturation
Linked pages on this wiki 		Projects (1),

People (1)


Since the first release, Apple Watches include a heart rate sensor and accelerometers/gyroscopes for activity tracking. Since 2020, some Apple Watch models can also do rudimentary sleep tracking.

Since the 4th generation, Apple Watches also include an ECG sensor that can be used to take manual readings and since the 6th generation they it includes a Blood oxygen sensor, though this has been disabled in recent models sold in the USA due to patent issues[1].

Beyond this, the Apple Watch also uses its microphone to regularly record environmental noise levels.

Data storage and export[edit | edit source]

All the data recorded by an Apple Watch is stored locally on the iPhone it is connected too and can be found inside the Apple Health application. Exporting the data from Apple Health is not trivial though. While it is possible to export all data as a full dump of all data from Apple Health, this generates a large ZIP archive that contains the data in an XML format that is not easy to re-use.

Exporting via Health Auto Export[edit | edit source]

The iPhone app Health Auto Export provides a way to export selected data in JSON, CSV or GPX files (the latter for geolocation data from workouts). The CSV format in particular can be used to import data into Excel or other spreadsheet software. While the base-version of the application is free, additional export options can also be made available through an in-app purchase. This allows to automatically sync data to iCloud and also provides a way to synchronize data to other external services.

Projects using Apple Watch[edit | edit source]

Sensors in different Apple Watch series[edit | edit source]

The table below is an abridged version of the one found on Wikipedia, focusing on the sensors that are used on the different Apple Watch series.

Specification 1st Series 1 Series 2 Series 3 Series 4 Series 5 SE (1st) Series 6 Series 7 SE (2nd) Series 8 Ultra Series 9 Ultra 2
Sensors Optical heart sensor 1st generation 2nd generation 3rd generation 2nd generation 3rd generation
Electrical heart sensor (ECG/EKG) No Yes No Yes No Yes
Oxygen saturation No Yes No Yes Yes (Disabled for U.S. models sold from January 18, 2024)
Temperature sensor No Yes
Accelerometer 16g 32g High-g
Gyroscope Yes Improved High dynamic range
Ambient light sensor Yes
Altimeter No Yes Always on
Compass No Yes
Battery life 24h 24h 24h 24h 18h 18h 18h 18h 18h 18h 18h 36h 18h 36h
Date released April 24, 2015 September 12, 2016 September 16, 2016 September 22, 2017 September 21, 2018 September 25, 2019 September 18, 2020 October 15, 2021 September 16, 2022 September 23, 2022 September 22, 2023

References[edit | edit source]

  1. ↑ https://www.theverge.com/2024/1/17/24041945/apple-watch-series-9-ultra-2-blood-oxygen-ban
Retrieved from "https://wiki.openhumans.org/index.php?title=Apple_Watch&oldid=13414"