Smart locks make it easy to access a home. The doors can be opened from an application and even by simply touching the lock or door. These five smart door locks are opened either by a fingerprint, using a biometric technology that identifies a specific person, or by connecting to an application.

I've seen this technology used on other devices, for example, from biometric gymnastics and bicycle locks. However, here I can help someone open a door at work, at home or even in the space of a trusted friend.

Lockly Duo is priced at $ 400

Lockly

Lockly Duo

Launched at CES 2021, Lockly Duo uses a fingerprint sensor right in front of you that allows you to unlock the door with one touch. Of course, you can also use a voice assistant, as well as an iOS and Android application. Lockly Duo will be launched in early 2021, with a price of 399.99 USD.

But if you want to get your hands on a lock now, $ 229.99 Lockly Secure Plus also works to read your fingerprint. The sensor is actually on the side of the lock with Secure Plus and you can actually select either a right or a left reader. I tested this lock - and installed it as well - giving it high marks for how well it is made and how the lock works with most standard doors.

The Ardwolf A50 can store up to 200 unique IDsArdwolf

Ardwolf A50

The $ 186.99 Ardwolf A50 can store up to 200 unique IDs in the padlock, allowing them to access a space with their fingerprint. The sensor has a 360-degree sensor, which means it can read the print more accurately. Designed for outdoor use, it can be installed indoors and for an office space.

There are backups, in addition to the fingerprint mode, which include the use of a code or even physical keys. And this lock will sound an alarm, flashing red, if the battery voltage has started to drop.

Bluetooth Kwikset Kevo Touch-to-Open Bluetooth smart lock opens with the touch of a fingerKwikset

Smart Lock Bluetooth Kwikset Kevo Touch-to-Open Bluetooth

This lock, thanks to the well-known lock company Kwikset, does not use biometric technology, but still opens with the touch of a finger. The Bluetooth Touch-to-Open Kevo smart lock opens after being touched and then connects with a mobile app on a smartphone. There, read, via Bluetooth, an electronic key inside the application. Once confirmed, the lock opens, letting someone in the door.

There are two generations of this lock - both can still be purchased online - with the second generation available for about $ 200.

Level lock Level touch lock Opens with a keyGearBrain

Level lock Level touch lock

Level Lock Level Touch opens a door with the touch of a finger, but like Kwikset Kevo, it does not use biometric data. Instead, this $ 329 lock - which looks like a standard door lock - also connects to a Bluetooth app to authenticate the person entering the door. You can also use a key and physical keys to access and work with the Apple HomeKit.

U-tec Lever UltraLoq works with Amazon Alexa, Google Home and IFTTTU-tec

U-tec Lever UltraLoq

The $ 189.99 Ultraloq Lever Lock is a keyless lock that opens with a smartphone app, code, real key - and gives a fingerprint. The sensor is built into the front of the lock and, with a micro USB port, you can add a quick squeeze of juice to this lock only if the batteries are dead and you need them inside. (Physical backup keys can help with this as well.) The lock also keeps a log of those who entered through the locked door, and the entire device works with Amazon Alexa, Google Home, and IFTTT.

Check out GearBrain, our smart home compatibility finder for smart devices. It will help you find extra smart locks for your smart home.