Review on Smart Keyless Bluetooth Fingerprint Padlock - High-Security Anti-Theft Lock for Android and iOS - Ideal for Gym, Backpack, School, Fence, and Storage by Broderick Shetler

I really liked this lock. The lock itself looks good. The problem is that the fingerprint scanner only remembered my fingerprints for about 12 hours. The lock was fully charged. The instructions are also a bit difficult to follow. I scanned all 10 fingers and they all remembered the lock first. The next day the lock only remembered 3 of my fingers. I was a little apprehensive but went ahead and used the lock on my gym. I almost had a panic attack because none of my fingers worked and the lock made an annoying squeak every time I tried it. Luckily it finally opened after about 20 tries. Not reliable enough for me, so I'm going back.