Another selling point is the fact that you can double-check to make sure your door is locked at any time. Ever been in line at the grocery store and wondered if your teenager remembered to lock the door after leaving on a bike ride? Your phone can tell you…and fix it if the door is open. In addition, you can use the best smart locks to let people in and out of your house when you’re not home. If you’re at work, but need the services of a plumber or housekeeping service, or you’re running late and your child just got off the bus, you can unlock your door for them from wherever you are and lock it up again when you’re ready. And even better, they may even get you a reduced home insurance rate.

Best compact: Level Touch Keyless EntryBest for ease of installation: August WiFi Smart LockBest with an alarm: Schlage Connect Smart Deadbolt Best with door handles included: Schlage Encode Smart WiFi Deadbolt Best budget: Kwikset Halo WiFi Smart Lock

Best smart locks: Reviews and Recommendations

Best compact: Level Touch Keyless Entry

The nice part of this keyless-entry smart lock is that you can’t tell it’s a smart lock; it just looks like a normal deadbolt. But this simple-to-install device is powerful, with options for remote locking and unlocking, touch to lock/unlock, auto-lock/unlock, two included keys, and the ability to send links so guests can open the door. The smartphone app is easy to use and gives you full access to the features. There are five color options, so you’ll easily find a style that fits your home.

Best for ease of installation: August WiFi Smart Lock

August is one of the forerunners of smart-lock manufacturing, and this is now their fourth-generation model. The August WiFi Smart Lock’s auto-unlock feature still gets mixed reviews (it sometimes stops working unexpectedly), but it works reliably to lock and unlock from your phone, and to provide access to guests.

Best with an alarm: Schlage Connect Smart Deadbolt

First things first, it’s imperative to mention you’ll need a Z-Wave hub (a mesh network for home automation) in order to use this Schlage smart lock; it doesn’t work on direct WiFi. The benefit to that is less interference and no competition with other devices on a WiFi network, so it should be more reliable. You can pair it with the Ring Alarm, Samsung SmartThings, Wink, Iris, Nexia, and others, and the built-in alarm sounds when someone tries to force open the door or tamper with the lock.

Best with door handles included: Schlage Encode Smart WiFi Deadbolt

Best budget: Kwikset Halo WiFi Smart Lock

How do the best smart locks work?

Many smart locks also come with a keypad with numbers rather than a keyhole. Others allow you the ability to do both—just in case your batteries die or you have issues communicating with the smart lock, you can always go back to your tried-and-true physical key until you solve the problem. Still, others offer a fingerprint sensor in addition to a keypad. In any case, it’s always best to have more than one option just in case anything malfunctions—you don’t want to get stuck outside because your smart lock wasn’t smart enough!

Simple guest access to your keyless door locks

Most keyless door locks will allow you to provide access to guests on a temporary or ongoing basis. Depending on the model, you may text a link to your guests that allows them to open and lock your door with their smartphones the same way you do, you may assign them a temporary code, or you may provide a password. 

Smart locks get you the W: Who, What, When, Where, and maybe even Why

One of the coolest features of a smart lock deadbolt is that you can usually customize exactly how you want this guest access to work: You may allow each guest access to your keyless door locks indefinitely, or you may set up specific parameters (the code may expire in four hours, four weeks, or whatever time period you specify; it may be cyclic so that someone with a standing appointment—like a housekeeper—can access it every Monday morning but no other times; or it may be for one-time use). You may revoke access early if someone cancels, or remove someone’s code even if you had set it up originally for permanent access. And you can normally issue several guest codes at once.

Smart locks deliver convenience

Budget doesn’t mean you can budge it

Going for a budget smart lock doesn’t mean a less reliable deadbolt, just fewer bells, and whistles. As it’s a budget pick, don’t expect fingerprint sensors or a touchscreen, and be aware that may be more complaints about short battery life and buggy software.

The final word on selecting the best door locks for your home

The best smart door lock for you will make your life simpler because it will allow you to lock and unlock your door from anywhere, even if you’re stuck at work or at a doctor’s appointment and someone needs access to your home (or needs to leave and doesn’t have a key to lock up). It can give you peace of mind to know that your house is locked up, and it can save you from having to rekey your door in case of a breakup or end of a friendship. Technology has already moved forward in the few short years since they’ve been introduced, so look at all your smart-lock options to see how they have evolved and get more reliable.