1. The Shape Decides Where You Can Use It
It sounds like a small thing, but for me it was the whole decision. A round 8mm AirTag only really sits comfortably in one place: on a keyring, inside a key holder you buy separately. The Spotminders card is 1.8mm and credit card shaped, so it slides into any slot made for a card: the wallet, the passport cover, the luggage tag, the laptop sleeve, the car's document folder. Nothing extra to buy. Put one in your wallet, your carry-on, your checked bag, your car and your partner's handbag, and suddenly everything you would panic about is covered. With a round tag, most people track their keys and leave the rest exposed.

