Items usually turn up eventually, sure, but it’s no fun searching for them. Fortunately, there are iOS and Android-compatible trackers that use the magic of Bluetooth to make it easier to locate your keys, wallet, backpacks, and all the other important doodads in your life.

Here are some of the best Bluetooth trackers available.

Perhaps the most popular Bluetooth tracker brand currently is Tile, and the current range of Tile trackers covers the vast majority of situations. There’s the waterproof Tile Sticker, which is about the size of a bottle cap and capable of sticking to most metal or plastic objects. It’s IPX7 rated, has a range of around 150 feet, and boasts battery life of three years. The Tile Slim is a credit card-sized tracker designed to fit easily in your wallet or purse. It has a range of 200 feet and a battery that should last three years. The Tile Pro is a square with a hole in the top corner designed to slip easily onto a key ring, and it has the longest range at 400 feet. It’s also the loudest of the Tile’s trackers and has a replaceable battery that should last a year. Our pick of the bunch is the Tile Mate, which has a similar design to the Pro but is cheaper. The trade-off is that the range drops to 200 feet, but it is still loud, comes with a replaceable battery that should last a year, and we think the price is easier to swallow.

All of Tile’s trackers work with a companion app on your iPhone or Android phone. You can trigger the tracker to play a sound to help you locate the item you’re looking for, and you can also see the last known location on a map. You can also use the Tile Mate to locate your phone by pressing the button on it twice. Tile also enables any of its trackers that are nearby to locate your tagged item, so the fact it has a huge user base is important. Tile also supports Alexa and Google Assistant, so you can tell your smart speaker to ask Tile where you left your keys and trigger the ringer.

Maybe you don’t care about seeing positions on maps and getting alerts when you leave things behind, maybe you just want a set of trackers to keep tabs on keys and other things around the home. This collection of trackers with a tracking remote could be the answer. For a pretty reasonable price, you get four trackers that can be attached to keys, pet collars, bags, or even sticky-taped to remotes, and there’s a central remote with a separate, colour-coded button for each individual tracker. Push the button, and it alerts the corresponding tracker to beep and light up a small LED for your attention. The trackers hit about 70 decibels, and they’re good for a 50 to 100-foot range.

While these trackers aren’t the smallest or the most stylish available, they’re still handy enough to attach to a wide variety of devices, and they won’t cost you much money. They also don’t require you to install or use a smartphone app. These trackers rely on a different radio frequency than Bluetooth. They take replaceable CR2032 batteries, and the remote requires two AAA batteries. They should last you a year or two, depending on how often you use them.

The Chipolo ONE is very similar to the Tile Mate, except it is circular and comes in six different colours. It also has a loud alarm that goes up to 120 decibels, it’s water-resistant with an IPX5 rating, and it takes standard CR2032 coin batteries which you can replace — though a full battery should last around two years. The Chipolo ONE is ideal for keys, and it can also give you an out-of-range alert on your Android phone or iPhone that helps prevent you from leaving your keys, or whatever it’s attached to, behind. Double press the button on the Chipolo and your phone will ring. The range is 200 feet and Chipolo also works with Siri, Google Assistant, and Alexa.

You can track tagged items on a map on your phone or in your web browser. You can also mark things lost and get help to locate them from other Chipolo users, though it has a smaller user base than Tile, so this feature might not work as well. Furthermore, you can also get a Chipolo CARD which is designed to fit in your wallet, but it doesn’t have a replaceable battery, and it’s not quite as loud. Other than that, it works the same way as the Chipolo ONE. One other neat feature that Chipolo offers is the ability to use the Chipolo ONE or CARD to take a remote selfie with your phone.