These work just as well as the apple version but have several better qualities. They are much less expensive, they have a built in way to put them on your keys.( With apple you have to buy a separate holder to achieve this.) Lastly they work just as well with the "Find my" app as the apple version. My Mother has Dementia and is prone to wandering. The tracker that I have in her purse (she knows its there) has helped me locate her and help her find her purse many times. The batteries seem to need replacing every couple months but they are inexpensive and easy to replace, so no big deal.