BenjiLock is a rechargeable pad lock with a fingerprint scanner.

Fingerprint readers are already a staple feature of many smartphones, at CES the technology is being built into what looks like a traditional padlock. The BenjiLock, designed by a startup from Los Angeles, supports up to four different fingerprints and saves them in an encrypted chip for easy access. It doesn't leave physical keys out altogether, however, since the company says you may need to use the included set at some point. For example, if someone you don't know makes a few attempts to unlock the device, BenjiLock automatically erases your information and will require the key to open it again. There in lies the first problem of someone curious about your lock and locking you out just by trying it out a few times while you are working out.

If you don't like the white model pictured here, it also comes in a variety of colors, including black, copper, brass and stainless steel. Unfortunately, BenjiLock won't be up for grabs until later in 2017 for $80 which is kind of a steep price for a lock but great for convenience of never having to remember some number to the right, left, and then right again. Unless you'd rather just stick to using keys or a combination that, somehow, you will at some point forget.