If you asked me 10 years ago what the most controversial devices I would test, I would not have answered them.

Abusers can use small devices that are intended to help you keep track of your wallet or child to find your victims. I had to try the Card Spot when I got the chance. The Card Spot is compatible with Apple's Find My app, which uses all 1 billion reported Apple users to help locate your lost or stolen devices.

I put it in my husband's wallet when he left for work. Like me, my husband is an Apple user, but he didn't get a safety alert that there was a tracker on him for two days. The Card Spot still marked my house at the exact time my husband left, even though I checked the Find My app multiple times.

Unlike a Tile, the Card Spot doesn't have wideband capabilities. It is limited to the 200 foot range. If you find the AirTag hard to attach to your wallet, the Card Spot is the best choice.

Team work.

Photograph: Chipolo

The Card Spot is a small tracker that looks like a credit card. The Tile Slim is 2.5mm thick and looks almost exactly the same. The battery doesn't last as long as the Slim's three, but it has the same range and it has the same features. I had to remove my Tile Slim from my wallet to use the Card Spot.

Its other specifications are also comparable. The Slim has a slightly better water-resistance rating than the Card Spot, which is IPX5-rated. The main difference is the seamless integration with the Find My app, which is why you should get the Card Spot over the Tile Slim.