> If you want convenience (e.g. no key for a gym locker), get something like a WordLock
Preferably not the one shown here[1]
Shared access to shared resources, like a rented storage unit, or anywhere combo locks are used by multiple people. Somewhere between work, with a professional security team and people I've never met, and my home, with a very very short list of people with keys, is the use case for Masterlock's version of this product (because I've used it/their app; I can't speak to the linked product's app).
I rent workshop space with several other people in a shared warehouse (think semi-private TechShop), and the previous two options are keys, which get lost and is one more thing to keep track of, or a combo lock, where the three numbers can be shared with friends, and in the end there's no way to know who has access unless the combo gets changed, plus it's something to forget. Having a Bluetooth enabled lock allows us to grant, but more importantly revoke access over the Internet.
The lock itself does not need Internet access via WiFi.
If you want high security, get a lock from a trusted brand (e.g. ABUS) with a thick hardened steel shackle.
If you want convenience (e.g. no key for a gym locker), get something like a WordLock: https://www.amazon.com/Wordlock-PL-056-SL-Combination-Sports...
No need to spend $100 on a lock to save yourself 2 seconds unlocking. Maybe I'm missing something, can anyone can think of a better use case?