10 Handy Keychain Gadgets You Can Get On Amazon For Under $20

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Gadgets are getting smaller and more affordable, to the point that you can have a whole arsenal of them attached to your keychain. However, not all of these products are able to maintain good quality with their compact designs and affordable prices. We're here to help you separate the keychain gadgets you should avoid from those that are worth buying.

To do that, we've rounded up 10 handy keychain gadgets you can get on Amazon for under $20. The list covers different types of products, including a personal safety alarm, a 6-in-1 charging cable, and a power bank dedicated to your Apple Watch.

In addition to their availability on Amazon, these gadgets have received solid scores after at least 1,000 ratings from the retailer's shoppers. They've also secured a positive review from a trustworthy website or channel. We've combined feedback from these sources with a discussion of each product's features to explain why we think they might be great attachments to your keychain.

You never know when you're going to need a flashlight, and while your phone probably has this feature, there are times when you'll prefer a device that's much easier to hold or set in place. Keychain flashlights are great for such situations, and one of the popular options on Amazon is the OLIGHT imini 2, with more than 9,700 ratings and an average score of 4.7 stars. According to Pack Hacker Reviews, the gadget is very bright for something so cheap and small, similar in size to a small spark plug. The surprising brightness was confirmed by the retailer's shoppers, and they've used the 50-lumen beam with a maximum throw distance of 21 meters for a wide range of purposes such as finding keyholes, looking for dropped items, working on their cars, or searching for something inside cabinets. 

Pack Hacker Reviews and Amazon customers praised this OLIGHT flashlight's magnetic design. To turn it on, just pull it off its magnetic cap. You can also attach it to any metal surface for hands-free use. To recharge the device's battery, you'll have to remove the cover at the other end to reveal a USB-A plug, so there are no cables necessary. It lasts up to 60 minutes on a full charge, which Pack Hacker Reviews said is more than enough since you'll likely be using the gadget for quick bursts of illumination, and not as a primary light for activities like camping.

The Kosin XCT-014 is another keychain gadget with a flashlight feature, but that's not its primary purpose. It's a personal safety alarm that activates by pulling the pin at its side, releasing a sound at 140 decibels. That's as loud as fireworks and can be heard from as far away as 600 feet. Amazon's shoppers are impressed by the device's volume, especially since it's affordable at $17.99 for a package of six units. They said that it attracts a lot of attention, which can help to deter potential attackers or intruders.

Steve Sherron demonstrated how to activate this Kosin personal safety alarm, and also how to turn it off by re-inserting the pin. The review also showed the internals of the device, revealing three AG13/LR44 batteries. They can power the siren for up to 50 minutes, with a shelf life of up to 365 days before you need to replace them. Of course, ideally, you and your loved ones won't have to use it, but Amazon customers said that the gadget has helped with their peace of mind, especially since it's always within reach if you place it on your keychain.

Instead of carrying around various charging cables, you can add the Rolling Square inCharge 6 to your keychain for $19.90. Its configurations include USB-A and USB-C for input, and Lightning, micro USB, and USB-C for output. That's a total of six types of cables that it replaces, leading Amazon's customers to note that it's among the best compact travel gadgets to consider for your next trip. It has received almost 6,300 ratings on the retailer's website with an average score of 4.2 stars, and shoppers said that its magnets are strong enough to keep it together so that it won't fall off your keychain. 

Brad's Backpack echoed the sentiment about the solid build quality of this Rolling Square charger cable in its review, encompassing not just the magnets, but also the cable itself. Since it's reinforced by nylon fiber, the inCharge 6 won't be damaged by your keys and other items you may have in your pocket, according to the review. It also mentioned that to maintain a compact design, the cable is relatively short, so it will be best for charging your mobile devices with power banks or for transferring data between two devices that you can place near each other.

A tracker tag on your keychain is close to being a requirement if you're the type who always forgets where they left their keys. If you're an iPhone owner, you should check out the UGREEN FineTrack, which we've identified as one of the budget alternatives to the Apple AirTag. You can buy it on Amazon for $8.99, and MikeTheTech says it's an excellent deal for that price because it works as well as Apple's version of the device. The FineTrack has also impressed Amazon customers, earning an average score of 4.4 stars after nearly 7,400 ratings.

Amazon's shoppers said that setting up this UGREEN tracker tag with your iPhone takes only seconds, and using it is just as simple. If the gadget is within Bluetooth range, you can use Apple's Find My app to make it play a sound to help you look for it, like in case your keys are wedged within couch pillows. However, for longer distances, you can utilize the Find My network of iOS devices to determine its last known location. Customers also appreciated that its replaceable battery lasts for two years, which is twice as long as what you might expect from the AirTag.

Everybody needs a reliable USB flash drive for storing documents and transferring files, and if you're thinking of adding one to your keychain, you might want to consider the SanDisk Ultra CZ48. At $19.95 for the 64-gigabyte (GB) version, the device is part of TechGearLab's list of the best USB flash drives because of its maximum read speed of 166 megabytes per second, which is excellent performance for the price. TechGearLab's testing revealed that you'll be able to transfer a five-gigabyte movie file from the device to your computer in just 30 seconds.

Across its different capacities from 16 GB to 256 GB, this SanDisk flash drive has nearly 134,000 ratings on Amazon's website, with an average score of 4.7 stars. The retailer's customers love its slim design that fits well with your keychain, and TechGearLab highlighted the sturdiness of the gadget's plastic material. Shoppers also mentioned the retractable USB connector, which not only protects the device from daily wear and tear if you always have it in your pocket but also eliminates the need for a cap (as other flash drives use), which tends to get misplaced.

A pocket microscope is a handy gadget to always have within reach, as it will allow coin enthusiasts and card collectors to check fine details for determining condition and authenticity, as well as for electricians to inspect tiny components. The Carson MicroMini, available on Amazon for $11.49, is a well-reviewed option from the retailer with more than 4,000 ratings and an average score of 4.2 stars. The device comes with an LED light for better visibility and an ultraviolet light to help detect counterfeit money.

A demonstration by funsciencedemos revealed how easy it is to use this Carson pocket microscope, with a switch to activate its LED light, a button to turn on its ultraviolet light, and a ridged dial to adjust its focus for 20x magnification. The review showed the device magnifying items like a dollar bill, a feather, and a leaf with the help of a phone attachment that's sold separately. Amazon shoppers acknowledged that it's not going to match the capability of a normal, full-sized microscope, but for its size and price, they said that it's an excellent device for examining items up close. 

The RESQME car escape tool is a safety device that clips onto your keychain for easy access. It's designed to help you get out of your vehicle when it's difficult to open the door, such as after a rollover, when electrical systems have failed, or when your car is sinking in a body of water. The gadget has a seatbelt cutter that slices through the thick material like butter if you cut diagonally, according to TheUrbanPrepper, and it also has a tempered glass window breaker that uses a spring-loaded mechanism and a stainless steel spike. It's effective if used on the corner of a window, as demonstrated by TheUrbanPrepper, which also said in its review that this tool is preferred over window-breaking hammers since you won't always have room to swing those devices.

Amazon shoppers have given the RESQME car escape tool an average score of 4.7 stars after more than 19,400 ratings, and they've praised its durability and usefulness at an affordable price of $17.95 for a pack of two. Some comments claim that rescue personnel themselves are using this tool and recommending it to their family members, which would certainly add to the trust factor for this keychain gadget.

Multi-tools are useful attachments to your keychain because they can help with several different tasks. One of the options on Amazon, with an average score of 4.6 stars after more than 1,600 ratings, is the Outdoor Element Firebiner. It's a 6-in-1 gadget that's shaped as a carabiner, which makes it easy to add to and remove from your keychain, and it can be used as a flathead screwdriver, a utility blade, and a bottle opener, and it has hanging slots for other small essentials. Lastly, it's also a firestarter, with a ferro rod that can create sparks. The price for all of this functionality in a single product is $16.95.

According to Amazon's customers, this Outdoor Element multi-tool is small and lightweight, but it's still sturdy and reliable. Shoppers are also impressed by its load capacity of up to 100 pounds if used as a carabiner and its value as a back-up firestarter during camping trips when they forget to bring a lighter or their matches get soaked. Beau Reviews Awesomeness, however, noted that you're going to need an effective fuel source if you want to easily start a fire with this gadget, while saying that you won't have to worry about accidentally cutting yourself or nearby items with its blade since it's protected by a notch.

While we've got tips on how to get the best battery life out of your Apple Watch, there will still be times when you'll need to quickly top off your smartwatch. In those cases, you'll need a gadget like the HUOTO D11. Available on Amazon for $18.99, this is a power bank for the Apple Watch with a capacity of 1,200 milliampere-hours, which is enough to replenish the wearable device's battery up to 1.5 times. This was mostly confirmed by James Johnston, who said that the device is good for a full charge and about a quarter of the next charge. The review added that this power bank becomes more useful when you're always using battery-draining features such as GPS tracking during running or cycling workouts.

According to Amazon's shoppers, who have given this HUOTO power bank an average score of 4.4 stars after more than 6,800 ratings, the gadget has proven its usefulness in many situations, such as when they forgot to charge their Apple Watch overnight and during travel when they don't have access to a wall outlet for a while. It's compatible with all models and sizes of the smartwatch, and it has an indicator light to show how much charge it's still holding.

For content creators and people who love to take selfies, the Xenvo Shutterbug will be a valuable addition to your keychain. This mini gadget is a remote Bluetooth shutter that you can buy on Amazon for $18.99, and according to the retailer's shoppers, it only takes a few seconds to pair with your phone. Once connected, pressing its button will make your phone's camera take a picture, and with a range of 30 feet, you can also shoot group photos with this gadget. Just A Dad Tips, however, recommended that you make sure that your phone's camera is set to snap a picture with the volume button so that it will work with this shutter.

Just A Dad Tips also said that this Xenvo remote Bluetooth shutter feels durable, and Amazon's customers confirmed that it still works even after dropping it a few times. Just A Dad Tips also highlighted that it's a minimalist gadget, as it only has an on/off slider and the shutter button, plus a light that tells you if it has successfully paired with your phone and is ready to help you take some shots.

All of the keychain gadgets on this list are available on Amazon with retail prices of $20 or below, and possibly even lower than usual due to the retailer's discounts. You'll also be able to take advantage of Amazon Prime membership perks if you buy them from the retailer (and are or become a Prime member).

Each product above has an average score of at least 4.2 stars (out of five) on Amazon's website, with a minimum of 1,000 customer ratings to ensure legitimacy. We showcased insights from the shoppers' feedback and from the reviews on reliable websites and channels to explain why you'd want to have these gadgets on your keychain.