Fingerprint Door Knob with Keypad, Matte Black

This smart fingerprint door knob is aimed at households that want several ways to manage access without handing out a physical key for every visit. It suits bedroom, study, side-door, and other entry use where keypad or fingerprint access would be useful.

You can unlock it with a fingerprint, a personal code, the app over Bluetooth, or a backup key. If you prioritize quick entry without carrying a key, fingerprint access may appeal, if you prefer sharing access with visitors, the keypad and app provide more flexibility.

The practical trade-off is that remote app access requires a separately purchased gateway. Without having tried it, the listed features make it a versatile keyless setup, but fit and the weather-strip restriction deserve attention before choosing it.

Getting the most from it

The app can manage fingerprints and passwords, add members, share access, and create permanent or temporary codes for family, guests, deliveries, or housekeepers. That makes the lock more useful than a keypad with one shared code: you can give a visitor temporary access rather than pass around your own credentials. The app also provides access-history logs.

For everyday routines, automatic locking can secure the door after entry, while passage mode keeps it unlocked when you want continuous access. Private mode and the anti-peep keypad add options for situations where you want more control over entry. Silent mode may be useful at night if keypad sounds could disturb someone sleeping nearby.

The app connects locally over Bluetooth. For Wi-Fi control or remote access, you’ll need the separately purchased gateway that pairs with the Smart Life app, the lock alone does not provide that capability. Fingerprints and app data are described as stored locally rather than uploaded to the cloud.

Why it’s worth it

Four unlocking methods give you alternatives if one is inconvenient: fingerprint recognition supports 20 users, personalized passwords support 20 users, and backup keys are available alongside app control. The lock also has a rechargeable 400mAh battery, a Type-C-to-USB-A charging port, and a low-battery indicator. The stated battery life is up to one year, though actual needs can vary, charge it when the indicator appears rather than waiting for the battery to run out.

Installation is described as suitable for most American doors, with support for backsets of 2-3/8″ or 2-3/4″ and door thicknesses from 1-3/8″ to 2-1/8″. It fits left- or right-handed doors. Those dimensions make it worth comparing against a basic keyed knob if you want managed guest codes and several entry methods, rather than key-only access. The product description also lists one year of technical support.

Key takeaways

Worth considering if you want to give different people access, switch between fingerprint and code entry, or use automatic locking in a bedroom, study, or side door. It may not suit you if your door has weather stripping, falls outside the listed fit dimensions, or you need remote control without buying an additional gateway. A backup key is included, but the keypad and app features still depend on keeping the lock’s battery charged.

Should you buy it?

Choose this knob if the main draw is flexible, keyless access and you’re comfortable checking your door’s measurements before installation. It can also make sense for households that regularly share access with guests or service providers, since temporary codes and app-based user management are part of the setup. Skip it if weather strips are installed on the door, or if you want Wi-Fi access without an extra gateway. For a simple replacement where a conventional key is all you need, those smart-access features may add complexity without solving a real problem.