Assuming you were within an eruv would you be able to carry around a tracker? You do not turn the device on and off but it can communicate with other tracking devices as you walk.

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    Do you mean carry it around by itself or eg. on a bunch of keys that you are carrying to get into your house? I suspect there may be a difference Nov 26, 2023 at 21:08
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    – Rabbi Kaii
    Nov 26, 2023 at 21:26
  • I mean to carry it on a set of keys which would let me into my apartment. The tracker would be to track the keys if they every went missing Nov 27, 2023 at 22:09
  • See this article which rules the tracker is muktzeh with some permitting to carry on a keychain and others not
    – mbloch
    Nov 28, 2023 at 12:25

1 Answer 1


I believe since everything the airtag/tile does is completely not discernible to the naked eye i.e. you can not see it doing anything, there is no problem on Shabbos as a result of the electronic elements. Similar to why there is no issue opening a refrigerator even though there are microprocessors inside measuring temperatures and time the door is open etc.

  • Do you have a source for this? To me that does not appear to be a sufficient reason. For instance, one cannot carry a digital watch that measures your heart rate if you will use this data later on. It would be benefitting from maase Shabbat.
    – mbloch
    Nov 27, 2023 at 4:11
  • I suppose you would only be benefitting from the data if you happened to lose the keys on shabbat. And even then I would not track it until after shabbat, would this change the scenario in your opinion? Nov 27, 2023 at 22:10
  • @mbloch Do you have a source for this? I am saying it is NOT masseh Shabbat if what the device is doing is undetectable/visible to the naked eye. My source - a shiur I heard on the usage of water meters on Shabbos .... Nov 27, 2023 at 23:23
  • @Draizy-LeviPine I have written up the various sources here and they contradict both your answer and comment, which is why I was asking for your source
    – mbloch
    Nov 28, 2023 at 12:12
  • @JoshZwiebel the case of an AirTag is possibly different from a smart watch because in most cases you would never use the data - you would need to ask a Rav whether it makes it permitted (possibly using the reasons mentioned here)
    – mbloch
    Nov 28, 2023 at 12:18

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