Best Smart Locks for Renters, No Rekey Needed (2026)

Shop Level Bolt →

The only pick here that's actually invisible from both sides of the door. Level Bolt fits entirely inside the deadbolt's own bore hole, so nothing changes on the interior thumb-turn or the exterior keyway at all, not even a visible bump. Level rates it to 250,000 open-close cycles, which the brand translates to roughly 135 years of average household use, and every real customer review pulled from Level's own product page independently makes the same point: nobody can tell it's there.

Best for: anyone who doesn't want a single visible sign, inside or out, that a smart lock exists on their door.

Skip if: you want to lock or unlock remotely from your phone the day you install it. Level Bolt works locally by Bluetooth and physical key out of the box, but full remote access needs a separate Matter-over-Thread hub.

Honest caveat: at $199 it's the priciest way in on this list once you factor in that a keypad for code-based entry is sold separately, not bundled.

Shop August Wi-Fi Smart Lock →

The simplest setup of the four, mainly because it's the only one with Wi-Fi built directly into the lock itself. Every other pick here needs a separate hub or bridge for remote access away from Bluetooth range; August connects straight to your router in under ten minutes and you're done. It's also the most reviewed lock in this roundup by a wide margin, holding a 4.4-star average across 2,546 ratings on August's own site at the time of this research.

Best for: apartment dwellers who want remote lock/unlock working the same day, with zero extra hardware to buy.

Skip if: you're picky about battery logistics. CR123 cells aren't the standard AA or AAA you can grab anywhere, so keep a spare on hand.

Honest caveat: August is now sold under Yale's ownership, and the code keypad that gives you PIN-based entry for guests or dog walkers is a $119.99 add-on, not included with the base lock.

Shop Nuki Smart Lock →

Built and sold as Europe's top-selling smart lock, and it works on standard North American single-cylinder deadbolts too, which makes it a genuine option whether you're renting in the US, the UK, or anywhere in between. The Verge rated it 9 out of 10 specifically for retrofit locks, citing its sub-1.5-second unlock speed as the fastest of anything tested, and 1,823 reviews on Nuki's own site average 4.1 stars.

Best for: the fastest real-world unlock experience of any pick here, and a solid choice if you're outside the US.

Skip if: you want code-based entry out of the box. There's no keypad in the base package; Nuki's own Keypad 2 NFC bundle runs $289 for the pair.

Honest caveat: Nuki's marketing and most of its independent press are Europe- first, so US buyers should run the brand's own compatibility checker before buying rather than assuming fit.

Shop SwitchBot Lock Pro →

The budget entry, and the only one under $150 at full price. SwitchBot replaced the old flip-switch design with a twistable dial that doubles as a Quick Key button, and real buyer reviews on the brand's own site (4.78 stars across 107 reviews) repeatedly single out one thing: it doesn't touch the deadbolt, the exterior lock, or the original key at all, so a landlord walking through at move-out would never know it was there.

Best for: the lowest price of entry for a genuine no-rekey retrofit, especially if you already own other SwitchBot smart home gear.

Skip if: small hardware frustrates you. Multiple verified buyers on SwitchBot's own review section specifically flag the tiny mounting screws as fiddly to install.

Honest caveat: the $119.99 sticker price only gets you the lock itself; full smart-home integration (Alexa, Google, Apple Home via Matter) requires the separate Hub Mini, an additional $69.99.

A quick side-by-side before the full breakdown above.

Will a retrofit smart lock actually let me keep my landlord's original key?

Yes, that's the entire point of the four picks above. Unlike a full deadbolt replacement, a true retrofit lock only swaps the interior thumb-turn hardware. The exterior keyway, the cylinder, and your landlord's original key all keep working exactly as before, since none of that hardware is touched.

Do I need to tell my landlord before installing one?

Most leases don't require notice for a fully reversible, non-destructive addition like these, but check your specific lease language first. Because none of these locks alter the exterior of the door or require rekeying, they sit in a much safer category than a full lock swap, but "reversible" isn't the same as "definitely allowed everywhere," so it's worth a quick read of your lease or a text to your landlord either way.

What happens if the batteries die or the Wi-Fi goes out?

Every pick here keeps a backup path in. Level Bolt, Nuki, and SwitchBot all work locally over Bluetooth and the physical key regardless of Wi-Fi status, and August explicitly states its lock falls back to Bluetooth-only if home Wi-Fi drops. Dead batteries are the bigger risk: all four give a low-battery warning through their app well before the lock actually stops responding, and the physical key always still works as the final fallback.

Can I really take it with me when I move out?

Yes, that's the mechanism these four are built around. Removing any of them takes the same handful of screws it took to install, and the door goes back to stock deadbolt hardware with zero visible modification. Keep the original screws and thumb-turn hardware from installation day in a labeled bag so reinstalling the stock parts at move-out takes minutes, not a hunt through a junk drawer.