10 Best Amazon Prime Big Deal Days Smart Lock Deals (October 2026 Sale)

If you want one lock that covers almost every smart home setup, the Schlage Encode WiFi is the pick to watch during Amazon’s Prime Big Deal Days sale: it connects straight to your Wi-Fi network with no bridge, holds 100 access codes, and carries the highest BHMA residential certification in this group. The TEEHO TE001 is the budget-friendly alternative for anyone who just wants a keypad and no app, and the ULTRALOQ Bolt SE is the mid-range choice for Apple Home users who also want a fingerprint reader.

Smart locks sit at an awkward price point. They cost enough that a genuine reduction matters, but you rarely buy one twice, so a bad fit is expensive to undo. Prime Big Deal Days runs October 6-7, 2026, most offers need a Prime membership, and prices on these listings move through the event.

Our Top 3 Picks for Best Amazon Prime Big Deal Days Smart Lock Deals

These three cover the widest range of households: a premium deadbolt that skips the hub, an offline keypad with a 4.5 rating and no app to run, and a fingerprint lock that speaks Matter. Each one earns its place for a different reason.

If you are still deciding, the short version is that the Schlage Encode WiFi wins on build quality and code capacity, the TEEHO TE001 wins on simplicity, and the ULTRALOQ Bolt SE wins on unlock methods for the money. Everything else in this list is a variation on one of those three approaches.

Best Amazon Prime Big Deal Days Smart Lock Deals Compared

Same four fields for every lock, so you can scan down the column rather than reading ten separate blurbs. Unlock methods are listed in the order they matter day to day, and gateway locks are called out plainly because that extra hardware is where a lot of buyers get caught.

How We Chose

Every lock here was compared on the specs that decide whether a smart lock works in your house: unlock methods, connectivity and whether a bridge or gateway is needed, power source and expected battery life, weather and security certification, bore and door thickness fit, and what arrives in the box. Owner ratings and review counts came from Amazon listings checked in October 2026.

1. Schlage Encode WiFi: Editor’s Choice

This is the one to watch if you want a deadbolt that does real work rather than one that mostly sits there. The built-in Wi-Fi reaches your network directly, so there is no bridge to mount and no extra shelf device to power, which removes the single most common complaint about connected locks.

Where it separates itself is capacity and certification. It manages up to 100 access codes with lock history and customisable notifications, which covers a household, a small office, or a landlord running a few doors from one app. It also carries a built-in alarm with door-position and forced-entry settings, a fingerprint-resistant touchscreen, and the highest residential rating in this group.

Owners report that the one-touch exterior locking and adjustable auto-lock delay are the features they use daily, and that installation takes a screwdriver and no hardwiring on doors 1-3/8 to 1-3/4 inches thick with a 2-3/8 or 2-3/4 inch backset.

Skip it if battery logistics annoy you: it runs on four AA cells for up to six months, and there is no rechargeable pack in this configuration. Compared with the ULTRALOQ Bolt SE, the trade is certification and 100-code capacity against a fingerprint reader and an open-standard connectivity path. If you run Apple Home and tap-to-unlock matters most, the Aqara U100 is the one to look at instead.

The practical build details matter here too. The body is zinc rather than plastic, it weighs 3.4 pounds, and the model number is BE489WBCEN622 if you need to confirm which generation you are looking at. Installation hardware and instructions are in the box, and the manufacturer warranty pairs a limited lifetime mechanical and finish warranty with a limited three-year electronics warranty, which is unusual at this level.

Reviews split slightly more than the 4.2 average suggests: 72 percent of buyers gave five stars and 12 percent gave one. Those one-star reviews cluster around connectivity drops, app reliability, and battery handling rather than the lock mechanism itself.

One number to plan around: 4 AA batteries for up to six months, with a low-battery indicator on the lock face and a second warning in the app. Set a reminder at the four-month mark rather than waiting for the notification, because a dead battery on a deadbolt with a retracted thumbturn is an unpleasant 2 a.m. problem. The backup key is the answer, and it lives in the box.

2. TEEHO TE001: Budget Pick

Buy the TEEHO TE001 if you want keyless entry and nothing else. There is no app to download, no account to create, no firmware to think about, and the keypad works the moment the batteries go in. That simplicity is why it holds a 4.5 average across more than 10,800 reviews.

It holds 20 individual access codes plus one one-time guest PIN that deletes after it is used, which covers a family, a contractor, and a dog walker without anyone passing a spare key around. Auto-lock is adjustable from 10 to 99 seconds, or you can hold any key for two seconds to lock on the way out.

Two details decide whether this one fits your door. It takes a 2-1/8 inch (54mm) hole only and will not work with a 38mm bore, and you need to reset it before first use so it detects door handing. Owners also like the anti-peeping password option, which hides what you are typing from anyone standing behind you.

Compared with the Sifely S Lock, you give up fingerprint entry and app-based guest codes, and in exchange you get a battery claim measured in a year rather than months. Good to know: batteries are not included, and a low-battery indicator lights red below 15 percent.

Some numbers worth having before you measure anything. The lock body is aluminum alloy, the keypad is back-lit for low-light entry, and the security rating is ANSI Grade 3 rather than the Grade 2 seen on the Tapo DL110. Vacation mode and a wrong-entry limit are both built in, and the warranty is two years with a 30-day customer commitment behind it. At 1.8 pounds and 5.12 by 2.95 inches, it is a light unit that sits flat on the door.

Reviewers split 78 percent five-star and 5 percent one-star, and the gripes that do appear are consistent: the 54mm-only bore and the need to reset the lock before first use.

A scenario that suits it: a two-door rental unit where you hand each tenant a code and delete it when they leave. The one-time PIN is built for exactly that, and it needs no app account to reset.

3. ULTRALOQ Bolt SE: Best for Matter and Wi-Fi

The Bolt SE packs the widest set of unlock methods into one deadbolt here, and the fingerprint reader reads up to 50 prints alongside 50 passcodes, the app, a web portal, shared eKeys, voice control, and two mechanical keys. That is seven ways in on a single deadbolt, and owners consistently mention that the code-sharing links work well for handing a relative access without creating a permanent code.

Two radios sit inside. Built-in 2.4 GHz Wi-Fi handles remote control with no hub, with the router recommended within about 70 feet of the door. Matter over Thread is the second path, and that one does need a Thread Border Router somewhere on the network before Apple Home sees the lock. That second radio is also the low-power route, which matters if you would rather not think about cells twice a year.

Two practical notes from owner reviews. If your router is 5 GHz only, remote access through Wi-Fi will not happen, so plan on the Matter route or a different network. And without the optional door sensor, the auto-lock is a timer rather than a real door-closed trigger, which is a difference you notice in a busy hallway.

Compare it with the eufy Smart Lock C220, which also skips the hub but stores 100 fingerprints, runs on eight AA batteries, and ties you into the eufy ecosystem instead of open standards. If you read Matter over Thread as the safer long-term bet, it is worth understanding how the border-router requirement works before the sale window closes.

Build quality is a zinc alloy body, and the warranty pairs a lifetime mechanical cover with 18 months on the electronics, so the sensor-heavy parts carry the shorter term. Auto-lock works on a preset timer, and the interior ULTRALOQ button gives an instant lock without waiting out the delay. In the box: two emergency keys, an installation kit, and a user guide.

Reviewers report 70 percent five-star and 9 percent one-star. The one-star share clusters around fingerprint and connectivity reliability rather than mechanical failure, which matters if you plan to enrol many prints while wearing gloves.

Good to know: since Wi-Fi is the only wireless path besides Thread, put your router within about 70 feet of the door or accept that remote unlock depends on your Thread setup.

4. Sifely S Lock: Best for Lever-Style Entry

The Sifely S Lock is one of only two lever-and-knob style entries here, alongside the Yamiry YR01 Knob, and that shape matters on a front door with a pull handle rather than a deadbolt cylinder. The reversible handle fits either door handing with no extra drilling, and the body is a slim zinc unit that does not look like a gadget bolted to an otherwise ordinary door.

Access runs five ways: fingerprint, keypad, app, key fob, and a physical key. Out of the box the app connection is Bluetooth and works locally. Remote unlock and Alexa or Google Assistant control arrive only if you add the Sifely WiFi Gateway, which is the single thing to check before buying, because plenty of owners report discovering that requirement after the box was open.

Two design limits are worth knowing. The keypad is not rekeyable, so the keys it ships with are the only keys that will ever open it mechanically. There is also no automatic lockout after repeated failed attempts, which some owners like and some do not.

Warranty here is one year, which is thinner than the lifetime mechanical coverage on the Schlage Encode WiFi. Compared with the Yamiry YR01 Knob, the Sifely costs a little more and adds a physical lever to the design, while the Yamiry leans harder into multiple-property code management.

What arrives in the box is worth a glance before you commit: a mounting plate, rubber gasket, face plate, back plate, bolt assembly, two keys, and two key cards. That fob-and-card pairing is unusual at this level and means you can hand a housekeeper a card rather than a code that gets copied down.

Reviewers are split 71 percent five-star, and the recurring comments cluster on three things: the sluggish touchscreen, the gateway requirement for remote access, and one design flaw where raising the inside handle can block electronic unlocking until you lower it. Support experiences get mentioned positively often enough that it is worth knowing the brand issues replacements rather than asking you to troubleshoot first.

5. eufy Smart Lock C220: Best for Retrofitting

This is the retrofit pick. The C220 fits over most standard deadbolts and bores under 54mm once you remove the spacer, which means you can keep your existing exterior hardware instead of replacing the look of the door. Installation is roughly 15 minutes with no drilling.

The fingerprint reader is the headline. Owners describe sub-one-second reads and a self-learning routine that improves as it collects more touches, and it stores enough prints for a whole family plus regular visitors. Six unlock paths cover fingerprint, the eufy Security app, keypad, physical key, Apple Watch, and voice assistants through the built-in Wi-Fi.

Integration is the trade. Routines tie into other eufy devices, including doorbells, but management stays inside that ecosystem, so an existing hub running a different brand will not pick it up. Reviewers also mention reports of the lock becoming sluggish or jamming after extended daily use, which is worth weighing against the Schlage Encode WiFi, where mechanical longevity carries a lifetime warranty.

Good to know: eight AA batteries is a lot of cells to hide behind a door, and the runtime is roughly eight months on typical use. It is rated for temperatures from -22F to 158F and holds BHMA Grade 3 after more than 100,000 cycles. If you are still weighing the retrofit question against a full replacement, weigh the mechanical warranty against the app dependency.

The box is generous for a retrofit: two keys, eight AA batteries, the exterior and interior assemblies, an install set, and a mounting plate. The model number is T8506, so it is easy to confirm you are looking at the Wi-Fi version rather than a Bluetooth sibling when the sale page lists several.

Scenarios that suit it: a 1990s front door with a deadbolt you like the look of but cannot bore wider, or a garage-side entry where keeping the existing hardware matters more than a sleeker finish. Reviewers split 71 percent five-star, and the negatives that do surface are almost entirely about the eight-cell battery pack and the ecosystem lock-in.

6. Yamiry YR01 Knob: Best for Rental Portfolios

Owners running more than one door will get the most from the Yamiry YR01 Knob. The app handles permanent grants, temporary codes, one-time remote codes, and unlock history, which is the workflow a property manager repeats every time a tenant changes. The listing positions it squarely for landlords, hosts, and managers rather than for a single family.

Entry runs six ways: fingerprint, Bluetooth app, passcode, key fob, mechanical key, and Alexa voice unlock once a gateway is present. The reversible handle covers either door handing, and installation takes about ten minutes on most standard wooden front doors without drilling.

The catch is the same one buyers hit with the Sifely S Lock, and it is worth pricing in before the sale ends. Out of the box this is a Bluetooth lock, so local control works while you are near the door, but off-site unlocking and voice control wait on the separately sold WiFi gateway. Certification is the other difference: no BHMA rating is stated for this one, so treat it as an access convenience rather than a security upgrade.

If your doors are heavy and you want a quiet close, the Tapo DL110 is the better buy. For a landlord who never needs remote access and just wants codes that expire, the TEEHO TE001 does the same job with fewer moving parts.

The body is stainless steel and zinc in a matte black finish, so it sits flat against a door rather than standing proud of it. In the box: exterior and interior assemblies, two key fobs, two mechanical keys, a screw set, and an adjustable latch. Two backup key fobs and two mechanical keys is a generous count for a unit at this level.

Reviewers split 72 percent five-star, and the single caveat that appears again and again is the gateway. It is easy to read the feature list, assume remote unlock comes in the box, and only find the gap after the hardware is mounted. Check your plan against the gateway cost before the sale window closes.

7. Aqara U100: Best for Apple Home Key

If tap-to-unlock with an iPhone or Apple Watch is the reason you want a smart lock at all, the Aqara U100 is the pick. The Home Key credential is stored on the device and keeps working when the phone itself is out of power, which is the failure mode people worry about most and the one this lock actually covers.

The fingerprint reader holds 50 prints and stores them locally with AES encryption rather than pushing biometric data to a server. A built-in gyroscope drives the auto-lock, so it only engages once the door has actually closed, which stops the lock re-engaging on a door that is still swinging. There is a Do Not Disturb mode that mutes the lock sound for late nights, and four AA batteries included that run about eight months with a USB-C emergency port underneath.

Here is where the rating sits lowest in this list, and the reason is clear. The remote and automation features depend on an Aqara Zigbee 3.0 hub, and sharing Home Keys with other people needs an Apple Home hub on top. Owners also report setup friction inside the Aqara Home app. If you already run the Aqara or Apple stack, that is a fair trade; if you are starting from nothing, the ULTRALOQ Bolt SE gets you Matter support on one device instead of two.

Good to know: the NFC card is not in the box, and fingerprint sharing beyond a single user works best through the hub. Buyers who were disappointed most often cite the missing card rather than the lock itself.

Physical details: a zinc alloy body in grey, rated IP65 and tested from -31F to 151F against a BHMA Level 3 equivalent safety standard. The box includes four AA batteries, installation accessories, two mechanical keys, and a manual, so you can install and use it before deciding whether you need any Aqara hardware at all.

That last point matters. Out of the box you get the local fingerprint reader, the keypad, the physical keys, and Apple Home Key on your own devices. What you are buying extra hardware for is remote configuration of passwords, third-party automations through Google Home or Alexa and IFTTT, and sharing Home Keys with other people. Reviews split 65 percent five-star and 12 percent one-star, the weakest split in this group, and the one-star reviews are mostly about that hub dependency rather than the lock failing.

8. Veise VE017: Best for Local Encryption

The Veise VE017 is the pick when privacy is your deciding factor. It uses an on-device AI chip to verify fingerprints in under 0.2 seconds at a claimed 99.99 percent accuracy, and AES128 encryption covers your access data, entry records, and fingerprints on the lock itself rather than relying only on cloud storage.

Password handling is unusually thorough. Four modes cover one-time, duration-based, permanent, and recurring codes, and the anti-peeping privacy code accepts random digits before or after your real code so someone watching the keypad cannot tell how many digits you entered. Auto-lock timing is adjustable from 0 to 180 seconds in the app, and Silent Mode and Away Mode cover night-time and travel.

Three box contents are worth checking against your plans. Remote unlock and voice control need the separately sold Veise G1 gateway. Batteries are not included, though the runtime claim is about 12 months on four AA or LR6 cells. And there is no door handle, so on a door that has no pull handle you will need one fitted separately.

Compared with the ULTRALOQ Bolt SE, the Veise is cheaper and narrows bore compatibility to a wider range, but it does not speak Matter and its fingerprint capacity is smaller. If you want the open-standard route for the future, the ULTRALOQ is the better long-term buy; if encryption on the device is what matters, stay here.

Build specs: an all-zinc alloy body in matte black at about 2.2 pounds, rated IP55 and tested from -35F to 160F, with BHMA and ANSI certification. The lock is also the widest-fitting in this list for older doors: it takes a 38mm or 54mm bore, handles door thickness from 35mm to 50mm, and detects handing on its own. The warranty is one year with a free extra year if you register the product.

Activity logs are the quiet feature property managers care about, since the app keeps detailed records per user rather than a single shared passcode. Reviews split 72 percent five-star on 1,293 reviews, which is a smaller sample than most of the list, so treat the long-run reliability picture as less settled than the numbers alone suggest.

9. Tapo DL110: Best for Rechargeable Power

The Tapo DL110 holds the highest rating in this group at 4.6 across 821 reviews, with 81 percent of those at five stars, and the reason is simple: it does the boring things well. BHMA Grade 2 certification, a rechargeable pack rated for a year, a rekeyable Schlage SC1 key cylinder with two keys in the box, and rubber gaskets on both sides so the deadbolt does not scar the door finish.

Six access methods cover fingerprint, custom keypad codes, Wi-Fi remote, close-range Bluetooth, a smart home assistant, and the backup keys. The reader resolves prints in 0.42 seconds and stores up to 100, and long-term reviewers specifically mention that it keeps working with wet or dirty hands. Resident profiles hold permanent codes, and guests can get one-time or scheduled codes instead.

There is a doorbell button under the keyhole cover, which is convenient and also the most reported annoyance, since it sends false notifications when a jacket brushes it. More significant for some buyers: the lock is cloud-only with no local API and no Matter or Home Assistant support, so it will not fold into a mixed-brand system.

The keypad digits are invisible until the panel is touched, which regulars work around and guests trip over. Compare it with the TEEHO TE001, which shows every digit at once and needs no app at all. If a year between charges is the deciding factor, this is the only lock here with a removable rechargeable pack; buyers who need Home Assistant should look at the Matter route instead.

The box contents are unusually complete: a mounting template, deadbolt, silicone cover, a Tapo A110 rechargeable battery pack, a USB charger, both assemblies, two keys, mounting screws, and a quick start guide. You also get a built-in USB-C port on the lock for emergency power, so a flat battery is a ten-minute USB-C problem rather than a locksmith visit.

Just 5 percent of its reviews are one-star, which fits a lock whose complaints are about interface quirks rather than failures. A scenario that suits it: a busy family entrance where four adults and two kids come and go daily, and nobody wants to hunt for a key in the dark. About 4.6 pounds in a black metal body, it is one of the heavier units here, which is part of what buys the Grade 2 rating.

10. TEEHO TE012W: Best for Budget Fingerprint Wi-Fi

The TE012W is the value route into a fingerprint lock with built-in Wi-Fi. You get five unlock methods, up to 20 fingerprints, up to 100 passcodes, two backup keys, and Alexa or Google Assistant voice control, all without a hub, at a fraction of what the premium deadbolts cost.

Two security features stand out for the money. The anti-peeping password accepts random digits before or after your real code, so a shoulder-surfer cannot count your entry. And the lock shuts itself for three minutes after ten consecutive wrong PIN attempts while sending a break-in alert, which is the kind of detail most locks at this level skip.

The eight AA battery pack is deliberate rather than accidental: owners report steadier Wi-Fi and longer runtime than four-cell locks, at the cost of bulk behind the door. Alexa pairing succeeds but routines sometimes do not fire, and the interior assembly feels cheaper than the exterior, which is the most common aesthetic complaint.

Good to know: it fits doors 1-3/8 to 2 inches thick, 2-3/8 or 2-3/4 inch backsets, 54mm or 38mm bores, and either door handing, then installs in 10-15 minutes with no drilling. If you want the same fingerprint and Wi-Fi feature set with a Grade 2 rating and a rechargeable pack, the Tapo DL110 is the step up.

The box carries two backup keys, a mounting plate, screws, latch, strike, and manuals, with a two-year warranty behind it. The lock is aluminum and metal in satin nickel and just over 2 pounds, so it is mid-sized rather than chunky despite the eight cells.

A scenario that suits it: a garage or side entrance that gets opened twenty times a day and where nobody wants to run mains power to a hub. Steadier Wi-Fi from the eight cells is the quiet benefit owners mention most, since a lock that keeps dropping its connection is worse than one that needs a key twice a year. Reviews split 76 percent five-star and land at 4.4, and the price-to-feature ratio is the reason several owners say they replaced a costlier brand after it started jamming.

How to Choose Smart Locks During Prime Big Deal Days

A smart lock is a security device first and a connected device second. The feature list is the easy part to shop on; door fit, power, and lockout behaviour are what decide whether you are happy in a month.

The deeper question is what happens when something goes wrong at 2 a.m. with the family inside. Every lock in this list ships with a physical key or mechanical override, and several add a USB-C emergency charging port, so no lock here is a sealed box that can strand you. What differs is how much warning you get first, and that is worth deciding deliberately rather than assuming every app notification arrives.

Work through the five checks below before you buy anything during the sale.

Security and Locking Performance

Look for a stated BHMA or ANSI grade rather than a vague durability claim, and check the grade rather than assuming the price band. The Tapo DL110 is the one lock here that names BHMA Grade 2 outright. The ULTRALOQ Bolt SE and the Aqara U100 carry ANSI BHMA certification without a stated level, the TEEHO TE001, TEEHO TE012W and eufy Smart Lock C220 sit at Grade 3, the Veise VE017 lists BHMA and ANSI certification without naming a grade, and the Yamiry YR01 Knob states no BHMA rating at all.

Also check what happens when someone tries to force it. The Schlage Encode WiFi has a built-in alarm with door-position and forced-entry settings, the Veise VE017 locks out for three minutes after repeated wrong codes, and the TEEHO TE012W does the same after ten failed PIN attempts while sending a break-in alert. The Aqara U100 adds a mechanical key for emergencies alongside its fingerprint and code paths.

Keep the physical override in a reachable place rather than in a drawer with the spare batteries. Most lockout stories in owner reviews come down to a dead battery and a thumbturn on the inside of a door that was closed from the outside. Any lock here will still open with its key; the difference is whether you knew where to find it.

Our roundup of smart deadbolts for front doors goes deeper on how these ratings are awarded. If you are replacing an older connected lock, the August smart lock alternatives comparison is a useful sanity check on what the incumbent does well and where the retrofit options sit.

Compatibility With Your Door and Smart Home

Measure before you click. Most locks in this group fit doors between 1-3/8 and 1-3/4 inches thick with a 2-3/8 or 2-3/4 inch backset, but the bore diameter is where returns happen. The TEEHO TE001 accepts only a 2-1/8 inch (54mm) hole and will not work with a 38mm bore, while the TEEHO TE012W and Veise VE017 handle both and auto-detect door handing.

Then match the radio. Built-in Wi-Fi locks like the Schlage Encode WiFi, eufy Smart Lock C220, Tapo DL110, and TEEHO TE012W need no extra hardware, but they need 2.4 GHz on two of them. Bluetooth locks such as the Sifely S Lock, Yamiry YR01 Knob, and Veise VE017 only add remote access when you buy the vendor gateway. Aqara and Z-Wave setups need a hub, and if you run several brands at once our guide to smart home hubs for mixed brands is the relevant read.

Access Methods for Households and Visitors

Count how many people actually need entry. A family of four with a dog walker needs a keypad plus a temporary code, which the TEEHO TE001 does with a PIN that deletes itself after a single use. Shared access across a whole property is different: the Yamiry YR01 Knob is built around permanent grants and one-time remote codes from the app.

Biometrics suit households where fingers are the fastest path. Capacity runs from 20 prints on the TEEHO TE012W to 50 on the Aqara U100 and ULTRALOQ Bolt SE, up to 100 on the eufy Smart Lock C220 and Tapo DL110. Read speed ranges from 0.42 seconds on the Tapo DL110 to under 0.2 seconds on the Veise VE017, and the Tapo is the one reviewers most often say still works with wet or dirty hands.

Plan for wet, cold, or dirty hands anyway, and keep a physical key method in reach for any lock you buy. Households with young children and older parents are the ones where a single fingerprint entry method is a liability rather than a convenience, which is the argument for pairing a keypad with the reader rather than choosing one.

Power, Connectivity, and Outdoor Reliability

Battery life claims range from about six months on the Schlage Encode WiFi to 365 days on the TEEHO TE001. Treat the long figures as best case. The Tapo DL110 is the only lock here running on a removable rechargeable pack rated for a year, which suits a household that would rather top up than replace cells.

For anything exposed to weather, check the IP rating: IP65 on the ULTRALOQ Bolt SE and Aqara U100, IP55 on the Veise VE017 and TEEHO TE012W, IP54 on the TEEHO TE001, IP53 on the eufy Smart Lock C220. Connectivity is the other half of the same decision, and our Matter over Thread smart locks guide covers the low-energy mesh route and the border-router requirement.

Installation, Maintenance, and Access

Most of these install with a screwdriver in 10 to 15 minutes, and the retrofit option is real: the eufy Smart Lock C220 fits over most standard deadbolts, and the Sifely S Lock and Yamiry YR01 Knob use reversible handles that avoid drilling. Renters should check the lease first, since an exterior door change usually needs written permission and a full-replacement deadbolt is not reversible.

Ongoing upkeep is small but real. Batteries need checking every few months on the eight-cell designs, and fingerprint readers need re-enrolling if a finger changes shape or gets injured. Rekeyability matters more than most shoppers expect: the Tapo DL110 uses a rekeyable Schlage SC1 cylinder so your existing keys can be fitted, while the Sifely S Lock cannot be rekeyed at all.

How to Shop Smart Lock Deals During the Sale

Read the model number on the listing before you look at the deal tag. Schlage, eufy, TEEHO, and Tapo all use generation codes such as BE489W or T8506, and a sale page often mixes several generations of the same family. Check the bore diameter in the fit notes, whether the finish matches your other door hardware, and whether the box includes batteries, keys, and the install kit, because the Veise VE017 and the TEEHO TE001 both ship without cells.

Look at who is selling and fulfilling the order, and whether the condition is new or renewed, since a renewed lock can mean an unregistered fingerprint reader and no warranty transfer. Check that the warranty on the listing matches the brand: the Schlage Encode WiFi carries a lifetime mechanical and finish warranty with three years on electronics, the TEEHO TE001 and TE012W carry two years, the Aqara U100 is the thinnest at one year, and the Tapo DL110 adds a free year on registration.

Most offers during Prime Big Deal Days need an active Prime membership, with a free trial counting, and the prices on these listings change through the event rather than sitting at one number all day.

Before you check out, run through this list:

• Measure door thickness, bore diameter, and backset against the listing before you buy.
• Confirm whether remote access needs a hub or gateway, and price that in separately.
• Check that a physical key or mechanical override is included with the lock.
• Verify battery type, whether cells are included, and how long the runtime claim assumes.
• Confirm the lock works with the smart home platform you already run.
• Ask your landlord or property manager before changing an exterior door.

Frequently Asked Questions

Final Verdict: Best Amazon Prime Big Deal Days Smart Lock Deals

The pick most worth watching during the sale is the Schlage Encode WiFi, which gives you hub-free remote access, 100 access codes, a physical key, and the strongest residential certification here without a second device on the shelf. Start there unless one of these needs fits your door better.

Buy the TEEHO TE001 if you want the cheapest route to keyless entry and do not need an app. Buy the ULTRALOQ Bolt SE if Apple Home, Matter over Thread, and a fingerprint reader matter more to a lifetime mechanical warranty. Buy the Tapo DL110 if you would rather top up a rechargeable pack once a year than replace AA cells, and want Grade 2 security with a rekeyable cylinder.

Buy the Aqara U100 if tap-to-unlock with a dead iPhone is the deciding feature, and only if you already run the Apple or Aqara stack. Buy the eufy Smart Lock C220 to retrofit over an existing deadbolt without changing the door’s look, and the Veise VE017 when keeping fingerprints and access data on the device matters most to you. For short-term rentals and multi-unit landlords, the Sifely S Lock and Yamiry YR01 Knob handle guest codes and access logs; the TEEHO TE012W covers fingerprint plus Wi-Fi on a smaller budget.

Check your door measurements and hub requirements first, then use the buttons to see the current price, since these listings move through the event.