Pothunder Fingerprint Padlock Smart Biometric Security Device

Karamay

May 13, 2026

Convenient and Secure Lock for Gym Lockers

I’ve been using this fingerprint lock at the gym for my locker, and it has made things much more convenient compared to carrying keys or trying to remember a combination code. The fingerprint sensor responds quickly, and unlocking usually takes less than a second. Even after workouts when my hands are slightly sweaty, it still works reliably most of the time.

One of the biggest advantages is not having to worry about losing a key while exercising. I can just tap the sensor and open the locker immediately, which is especially helpful when carrying a water bottle, phone, or gym bag. The compact size also fits gym lockers nicely without taking up too much space.

The battery life has been better than I expected, and the lock gives a reminder before the battery gets too low. I also like that it feels sturdy and durable enough for daily gym use. The setup process was simple, and adding fingerprints only took a few minutes.

Convenient, secure, and easy to use!

This smart fingerprint padlock is super handy! I love that I no longer need to carry keys or remember combinations. The fingerprint sensor is quick and accurate, unlocking instantly every time. The app setup was simple and lets me manage multiple users easily. It feels solid and durable, and it’s waterproof too — perfect for outdoor gates or gym lockers. Battery life has been great so far, and the build quality feels premium. Excellent modern upgrade from a traditional lock!

A great padlock for the gym

It took few days longer than I expected. But it definitely worth the waiting. This lock can be programed with recognition of 20 fingerprints. There are plenty of backup for injured fingers caused by accidental paper cut. It is perfect for gym locker, since it can be easily opened with a touch of finger. And there is no need to worry about where to put the key. What I love most is the value of money.

julian1127

June 13, 2025

Great smart lock!!

Very convenient and secure! The fingerprint unlock is fast and reliable, and the app adds extra control. No need to carry keys. Works great for lockers and gates. Sturdy and weather-resistant!

0:05

quality

It's my first time to own a fingerprint lock. It's great. It's more convenient to go to the gym.

JOHN

June 10, 2025

Good

Reliable fingerprint lock offers quick, keyless entry and enhanced home security. Setup was easy, and it works flawlessly every time. Highly recommend!

Good to buy

I buy this product and I am very happy. It works very good and easy to use. The quality is strong and it feels nice. I use it every day and no problem. The delivery was fast and the package was good. I tell my friends and they also want to buy. Thank you for this good product. I will buy again.

0:06

Decent, but struggles in wet conditions

The padlock works well in dry conditions, and the waterproofing seems effective in protecting it from the elements. However, using the fingerprint scanner in the rain is a real challenge. When either the scanner or my finger is wet, it struggles to recognize my fingerprint. I often end up using my phone with bluetooth which leaves my phone soaked as I have to stand in the rain or snow and wait for the phone to connect via bluetooth, which defeats the convenience of having a fingerprint lock. It’s a good product overall, but not ideal for consistent outdoor use in rainy or snowy weather.

Works as advertised

This pad locks works exactly as advertised. The App is so simple to set up, that the paper instructions are unnecessary. Contrary to other reviews, this lock opens easily with the programmed prints and does not work with those that have not been scanned. Good solid lock with functional biometrics.

0:13

Tyler Douglas London

May 2, 2024

Great buy!

I researched a bunch of them before I bought this one, and I was scared it wouldn’t work because my index and middle finger didn’t read, but the thumb is 100%

0:43

Used and DIRTY

I didn't choose a used dirty product at a discounted price. That's bad business.

SoCal Law Enforcement

December 2, 2023

Has no problem reading my prints. Very easy to use.

This is the first time I’ve had a biometric padlock and so far I am enjoying it. I use padlocks a lot for my weapons cases, lockers, and lockboxes.

Downloading the app and connecting it to the lock was easy. After establishing an account, I programmed the lock with my right thumb which took several seconds to capture the ridges of my finger.

I can now unlock the padlock with my thumb or via the app. It seems effortless and connecting to the lock via Bluetooth takes seconds.

I’ve had it now for a week and this lock has been a blessing. I don’t have to fumble around dialing numbers or have to carry a key. I don’t know if anyone has tried to gain access to my items, but the lock has been secured.

There’s very little maintenance to the lock other than making sure it is charged. I am not sure if it is weather resistant though in the description it does say it is waterproof. I will use the lock primarily for lockers and gun cases.

I highly recommend it.

0:18

Customer

November 22, 2023

Great biometric padlock with easy setup

I really like this padlock. The setup was a breeze using the app and I didn't encounter any issues. I tried it out at the gym and even with sweaty fingers, it worked flawlessly.

I also looks good and has a great build quality. There are led lights (as well as the app) that will give you an indication when the battery is running low. You can also add multiple fingerprints if needed.

I highly recommend this biometric padlock for anyone that is tired of fumbling with combinations, or misplacing keys. For the last few weeks that I have been using this lock at the gym, it worked 100% of the time.

Really Small & No manual key

Nice intuitively designed padlock.

Fingerprint reader works fast without failure.

App response is also fast and reliable.

Unlock history is great for tracking purposes.

Comes with a usb charger cord but will work with just about any c-type usb charge cord.

I am however disappointed with the small size. I would've loved if this lock was a little bit bigger.

Its lightweight and doesn't feel all that sturdy so I would not put it in a place that need a sturdy lock.

0:10

Perfect size it works every single time!

I have a bigger version and it works great but since I was able to check this lock, for my purposes it fits better this smaller version.

It is very easy to set up, and it works as expected every time.

Also doesn't work, as expected, with other fingerprint.

Happy with this product,as I am with the other. Easy to use after a few hours charging the battery.

I recommend it 👏🏻👏🏻 great quality.

0:07

Mika J

November 11, 2023

Extra security

This fingerprint padlock offers a high level of security while being extremely easy to use. No more combinations to remember or keys to carry; a simple touch unlocks it. It's been reliable for use at the gym and on outdoor equipment. The companion app is easy to setup and use.