GPS trackers are small but powerful. Like GPS navigation devices, they use the unique radio signals from satellites in orbit to identify their location on Earth with surprising accuracy. By comparing distances to multiple satellites at once, they can estimate their location on the planet. Then, they can either store that information or broadcast it to your device via cellular network—or do both.

GPS tracking devices are popular for use in cars and on luggage, bikes, pet collars and more. A GPS tracker for kids can go in a backpack with them to school. If you want to monitor a car fleet or your teen driver, a magnetic GPS tracker for car use can easily attach to the metal surfaces of the car.

You might notice there is also a category of device tracker called a Bluetooth tracker. This tracking device operates more locally. Instead of relying on the satellite GPS network, it broadcasts a Bluetooth signal that can be picked up directly by your phone for misplaced items nearby.

The first step when choosing a location tracking device is to decide whether you need a GPS-enabled tracker or a Bluetooth tracker. If you want a tool to use for theft recovery, fleet tracking and data collection, then you will need the range of GPS technology, which tends to be more expensive. For locating keys or a wallet within your home, Bluetooth should suffice.

You may also have size and design preferences for your location tracker. Do you want a rechargeable GPS tracker, a wallet-friendly card-shaped tracker, a Bluetooth tracker that can go on a keyring or a pet collar, or something else in terms of physical design?

Finally, you might consider brand and user ratings. Thanks to the fact that there are many ways to use Apple AirTags, AirTags are probably the best-known trackers on the market. However, there are many trustworthy brands and models of tracking devices you may like.