Everyone can benefit from using a Bluetooth tracker. That goes for frequent travelers, folks who regularly misplace their wallet or passport, or anyone who’s cautious about having their stuff stolen. But the shape of some trackers can be bulky or awkward placed in a wallet or flat object (Apple AirTags, we’re looking at you). Enter: the “tiny card-shaped peacekeeper” that is the Life360 Tile Slim.The Tile Slim is designed to be as thick as two credit cards, making it a “slim and reliable” choice that “slides easily into your wallet, which is something that the AirTag can’t do (yet).” as one reviewer pointed out. Its flat, thin shape also makes it handy to keep in a passport holder, notebook or tablet case.You can use the Life360 app to track your devices, and — if you’re having trouble finding it — ring the Slim when it’s within 350 feet to make it easier to find. It works with both iOS and Android devices, and reviewers say it’s pretty loud so you can easily find your devices, with one adding, “Works way better than the AirTag that I have in my wallet because I can actually hear the Tile.”This can come in clutch for anyone who’s dropped their wallet behind or underneath furniture at home, for example, but it’s also practical for travelers who want to keep their IDs and credit cards safe. One reviewer claimed the Tile Slim’s tracking technology”led me right to the location a thief discarded my wallet after it was stolen.”Other travelers concur, and note that it’s useful for more than just wallets — you can store a Tile Slim in your luggage, similar to an AirTag. “We bought these before a trip overseas, to give us peace of mind that our luggage made it on the plane. When one of our bags didn’t appear on the baggage claim belt, airport personnel told us to file a claim,” one shopper said. “With the tracker in place, we were able to tell them that the bag was somewhere in the terminal, which prompted them to do a search, and find our bag still on a conveyor belt downstairs, saving us plenty of hassle getting it back or getting reimbursed. A must have for travel! We didn’t go anywhere without them!”AmazonUse the Life360 app to ring your Tile Slim and find your wallet.As a bonus, if you have the Tile on you but your phone is missing, you can even do the reverse and use the Tile to ring your phone to find it. “This thing is responsible for helping me find my phone more times than I could count,” one reviewer admitted. “I’m a landscaper, and I was working on a job and accidentally threw my phone in the compost garbage can. I never would’ve found it without this thing. And sometimes I’ll misplace it around the house and without this it would take forever to find it. But with this locator, it saves me time time time. Highly recommended.”If you have a partner or family member that’s always losing their stuff, one reviewer even joked that having a Bluetooth tracker like this “has saved our marriage at least 14 times already.” “This has saved so many arguments between my man and I,” another said. “He always [mispaces] his wallet and now I just ask Alexa where his wallet is and it beeps loud enough for us to hear, but not [too] loud to wake the kids.”The Tile Slim has a three-year battery life and is water-resistant. The setup is a little more involved than an AirTag, perhaps, given that it works through the Life360 app rather than built-in features like Apple Find My or Google Find Hub (so if you don’t already have the app, you’ll have to download it to get started). But, you don’t need a subscription to use it. And having the app can be handy, too: In an unsafe situation, you can use the Tile Slim to trigger an SOS to your Life360 Circle members, which sends your loved ones a help alert with your location.If you’d rather not sign up for a separate app and want something of a similar shape that works with Apple Find My or Google Find Hub, this alternative is a good option. At full price, it costs the same as a Tile Slim, but is on sale for just $17 right now. It’s a little bit slimmer than the Tile Slim, and has a five-year battery life, with similar water resistance and a 330-foot Bluetooth range. Just note it lacks some of the Slim’s features, like the ability to send an SOS alert or to use it to find your phone.Below, you’ll find more promising reviews that outline why the Tile Slim is a good tool to keep with your important items for peace of mind at home, at work and abroad. No more searching frantically for your wallet or passport — now you can know where it is quickly and easily. “I tend to forget things as soon as I turn around, so I love that I can easily find where my wallet is. Whenever I forget where I put something, I just open the app and make it play a sound. I no longer get stressed trying to find my wallet before going out. It’s definitely improved my quality of life.” — Amazon Customer “Excellent piece of electronics that allows me to find my wallet whenever I’m in a hurry and cannot remember where it is. Fits nicely in my wallet alongside my back pocket so I sit on it quite a bit. No accidental pushes on it so far and the app makes easier when it it’s time to find it, telling me when I’m close.” — Masters “This is a lifesaver really. I have a smaller card holder that I use for a wallet. I carry my license and credit cards and a pass key card for work. It’s a LARGE building and I will occassionally put my card carry down and walk away from it. Or how aboue changing jackets a couple of times and then realizing - you’ve put that card carry in a jacket and didn’t realize it got away from you. If you lose your wallet or purse (or whatever you put this in) just once and need to find it/track it - you will realize how very valuable and handy this luggage/wallet tag is and will continue to be. Highly recommended!” — J Christopher “This is a very convenient product. I bought it for my trip to Italy and it was comforting knowing that if I were to be pickpocketed while I was there (considering the pickpocket rate is extremely high there), I would be able to track my wallet.” — Baige Puccio “This Tile tracker is a life saver! Bought it specifically for my Vegas trip and it helped out a lot when I couldn’t find my wallet, due to being wasted all the time. The tracker is the same shape, size, and thickness as a credit card which is better than putting a bulky Apple Air Tag in your wallet. Definitely would recommend this if you keep losing your wallet.” — Jeff Check out some more of the best Bluetooth trackers, from a list curated by the HuffPost Shopping team:AmazonThe undefeated Apple AirTag for Apple usersHighlights: Works with Apple's Find My network, ultra-slim and small design, most precise location tracking, water- and dust-resistant with IP67 ratingDrawbacks: Doesn't work with Android devicesThe AirTag was crowned one of the best Bluetooth trackers by Wirecutter, and for good reason. The AirTag's ultra-wideband technology is extremely accurate for helping you find lost items. (Note that it won't work on iPhone 6s or earlier models, but devices of this age are also no longer supported by Apple.) The AirTag setup is also ridiculously easy, as it uses the Find My network — so if you have an Apple device, you don't even need to download a separate app. You can put the AirTag into Lost Mode so that you get a notification when it's detected in Find My, and the AirTag also has a built-in speaker so it can play sounds when you're looking for it.(Yes, AirTag batteries can be replaced, but there are reports that certain bitterant coatings can cause incompatibility. While Apple specifically suggests using a Duracell 2032 lithium battery with bitterant coating, anecdotal online evidence suggests that even this doesn't work. The brand also advises looking for batteries that clearly advertise compatibility with AirTags.)Bottom line: If you're already an Apple user, this is a no-brainer choice for convenience of setup. The ultra-precise location tracking is also a great reason to choose this one.AmazonThe Samsung Galaxy SmartTag2 for Samsung usersHighlights: One of the more affordable trackers, uses ultra-wideband technology like the AirTag, water- and dust-resistant with IP67 ratingDrawbacks: Only compatible with Samsung Galaxy devicesThe Samsung Galaxy SmartTag2 uses Samsung's SmartThings Find app to help you keep track of your things with ultra-wideband technology (this is similar to the AirTag using the Find My network). The SmartTag 2 can send out audible signals to help you find your lost items. Lost Mode also displays your contact information and a message on the smartphone of whoever found it.Bottom line: If you have Samsung Galaxy devices, this could be a good way to keep track of them.AmazonThe lesser-known Chipolo ONE Spot, which is basically a cheaper AirTagHighlights: The most affordable option, works with the Find My appDrawbacks: Has mixed reviews for battery life and durability, less water-resistant and not dust-resistant with IPX5 ratingIf you want the ability to use the Find My network without paying so much for an individual AirTag, the Chipolo ONE Spot can provide an alternative. Unlike the AirTag, this has a keyring hole so you can directly attach it to your items. Based on the reviews summary at Amazon, it seems like the quality overall for this one may not be as great long-term as the other options on this list, and the price reflects that. (It does still have a 4-star rating, indicating reviewers find it to be a good value.)Bottom line: We don't recommend this one over the more popular options above, but if you're looking for a cheap option, this could work.