in reply to @briankj I understand. Is it possible to keep a closer eye on her when out in public? I am not going to suggest a leash, although that did enter my mind when I saw your post. Those trackers are not foolproof, as my brother in law has been "lost" on more than one occasion. They can be useful as long as the person does not "lose" the tracker, if you are talking about one of those devices. On the other hand, the iPhone is good for location sharing which might be helpful, assuming your wife can hang on the cell phone, which my brother in law could not. If I were you, I would ensure you are with her at all times so she does not get "lost." I am so sorry that this is happening to you.

@briankj Welcome to Mayo Clinic Connect! You’ve asked a great question that I’m sure many others wonder about. I know you must worry when she (or both of you) are out and about in public. I know I would, Just this week, I bought Medic Alert bracelets for my husband and I. We are both on immunosuppressant drugs so I thought this would be a safe option. You can choose what you want engraved on the bracelet, including your phone number.
Let’s wait for other members to chime in with their ideas. What do you think your wife will think about having something on her that lets you know where she is?

@briankj, I can imagine your concern about your wife wandering off when you are out. I moved your question about trackers to this existing one.
- Best trackers for lost loved ones with dementia
https://connect.mayoclinic.org/discussion/best-trackers-for-lost-loved-ones-with-dementia/
I did this so you can read previous posts from members like @johnna16 @pattyinal @larryg333 @ladytexan @mrjohnwebb and connect with them.

Did you find a system that works for you and your wife? How are you doing today, Brian?