These are your entry-level options. Think of them as smart lock ‘add-ons’ rather than full replacements. They typically work ...

The Philips Home Access 4000 Series smart lock is one of the most responsive smart locks I've tested - and a great deal at just $120.

The best smart locks can make your home more secure but also save you time and provide peace of mind. We tested more than a dozen smart locks to find the best.