Retrofit vs Replacement vs Camera — That's the Smart-Lock Decision That Actually Matters

Most smart-lock shopping starts in the wrong place. A Home Key badge, a fingerprint hangtag, and a studio clip of someone tapping an iPhone in perfect porch light are how retailers sell the category before the first dark commute. The decision that actually matters is architecture: a retrofit that keeps today's exterior hardware, a full-replacement deadbolt you own the door to swap, or a lock-plus-camera you bought because you wanted one install instead of two.

Get that split wrong and you own a $300 Schlage Encode Plus you asked a landlord to approve — or a $399 Lockly Vision Elite you curse because the doorbell camera already works.

The live ranking is on our Best Smart Locks list. Use this page to pick a lane, then buy from that list. The community ranking story is in The Best Smart Locks in 2026.

Buy retrofit if you keep the exterior hardware

Retrofit is a mechanism on the interior, a screwdriver, and the same keys from the street. About 15 minutes over a single-cylinder deadbolt. You are buying an upgrade the lease can survive, not a new faceplate.

The Home Key default is the Aqara Smart Lock U200: native NFC Apple Home Key, native Matter-over-Thread, fingerprint, illuminated keypad, USB-C rechargeable battery. About $230. Currently first at 9.4. The Thread radio needs a border router — a HomePod, a newer Echo, or an Aqara Hub. Buy it when an iPhone lives in the house and the existing exterior should stay. Skip it if you need BHMA Grade 1 paperwork or you refuse to own a Thread router. That is the Encode Plus.

The auto-unlock / Airbnb lane is the August Wi-Fi Smart Lock (4th Gen): built-in Wi-Fi, DoorSense (closed versus merely locked), geofencing that fires as you walk up, HomeKit lock control plus Alexa, Google, SmartThings, Ring, and native Airbnb guest codes. About $230. Currently fourth at 8.9. HomeKit tile only — not NFC Home Key. Buy it when auto-unlock or short-term rentals are the job. Skip it if tap-to-unlock is why you opened the tab. Same $230, different architecture. That is the U200.

Do not buy the Schlage Encode Plus hoping the landlord lets you swap the exterior cylinder. The architecture is different.

Buy full-replacement if you own the door

Full-replacement is a new deadbolt, a new exterior, and usually new physical keys. You are buying the face of the door, not a module behind it.

The Grade 1 Apple benchmark is the Schlage Encode Plus: native NFC Home Key, Matter-over-Thread, built-in Wi-Fi so the Thread router is optional, the one independently confirmable BHMA Grade 1 rating on this list. About $300. Currently second at 9.3. Keypad, key, app — no fingerprint reader. Buy it when insurance, a rental-compliance binder, or Schlage parts matter more than saving $70. Skip it if you rent. Skip it if fingerprint is the daily unlock. That is the U200 or a Yale.

The fingerprint-first Yale is the Yale Assure Lock 2 Touch: slim Assure 2 profile, capacitive fingerprint, illuminated keypad, four AAs, Z-Wave or Zigbee if you already have a hub. About $230. Currently third at 9.1. No native Home Key — that is Yale's separate Assure Lock 2 Plus, which is not on this list. No built-in Wi-Fi; the $40 Yale Smart Module adds remote access plus Alexa, Google, SmartThings, and Matter. BHMA Grade 2. Buy it when the hub is already on the wall and fingerprint beats tap. Skip it if Home Key is non-negotiable. Same $230 as the Aqara Smart Lock U200.

The invisible deadbolt is the Level Lock Pro: the motor, radios, and battery sit inside the cylinder. From the street it looks like a mechanical lock. Concealed keypad ring. Fingerprint. Native NFC Home Key. Native Matter-over-Thread. About $329. Currently fifth at 8.7. CR123A batteries, not USB-C — a design tax of hiding the mechanism. Buy it when the door cannot look smart. Skip it if you do not care how the lock looks. That $99 over the U200 is the aesthetic.

The hub-paired Aqara is the Aqara Smart Lock U100: fingerprint, keypad, eight unlock methods, AAA batteries. About $190. Currently eighth at 8.1. Home Key and Matter require an Aqara Hub M2 or M3. If you already own that hub, you save $40 versus the U200. If you do not, U100 plus hub crosses $230 and the radio-in-the-lock U200 is the cheaper all-in. Skip it as a cheaper U200. It is a different radio.

The Android Schlage is the Schlage Encode Smart Wi-Fi Deadbolt: first-gen Encode, built-in Wi-Fi, illuminated keypad, Alexa and Google, BHMA Grade 2. About $250. Currently ninth at 7.9. No Home Key. No Matter. No fingerprint. Buy it when the house is confidently Android and Schlage build is the brand. Skip it if an iPhone might join the household. The secure element is not in this hardware.

The hub-free Yale is the Yale Assure Lock 2 Touch + Wi-Fi: same slim fingerprint lock as rank 3, plus a built-in Wi-Fi module. About $280. Currently tenth at 7.7. HomeKit lock control — not Home Key — plus Alexa, Google, SmartThings; Matter via the $40 Yale Smart Module. BHMA Grade 2. Buy it when you want Yale fingerprint and remote access without a Z-Wave box. Skip it if you already have a hub. That is the base Touch at $230.

The sub-$100 baseline is the Wyze Lock Bolt V2: AI self-learning fingerprint, keypad, built-in Wi-Fi, IPX5, UL 20-minute fire rating. About $70. Currently eleventh at 7.5. No Home Key. No Matter. No native HomeKit. Wyze app plus Alexa and Google. Buy it for a rental unit, a first lock, or a door you will not cry over. Skip it as the primary residence behind an Apple household. That money belongs on the Aqara Smart Lock U200.

Buy lock-plus-camera only if you want one device

Camera-plus-lock is a deadbolt with a doorbell in the same chassis. You are buying one hole in the door, not a better bolt.

The renovation pick is the Lockly Vision Elite: 1080p camera, two-way audio, five entry methods, PIN Genie randomized keypad. About $399. Currently sixth at 8.5. Alexa and Google. No Home Key. No Matter. No native HomeKit. Buy it when the front door has no doorbell camera and you want one install visit. Skip it if the porch already has video. That is a lock from the lanes above.

The no-subscription sibling is the Eufy Security Smart Lock E330 (Video): 2K camera, local storage, no required cloud fee, fingerprint, keypad, Wi-Fi, Alexa, Google. About $280. Currently seventh at 8.3. Same Home Key / Matter / HomeKit gap as Lockly. Buy it when the house is already Eufy HomeBase and you refuse a monthly fee. Skip it if battery life on a video lock is a known deal-breaker for you — third-party testers have said so in as many words. Pair a Aqara Smart Lock U200 with a separate doorbell if Home Key plus video is the actual brief.

A $399 camera lock does not become Home Key because the listing said security.

Home Key is the tap — not the brand sticker

Tap iPhone or Apple Watch. No app. No PIN. Works in Power Reserve when the phone is dead.

Native NFC Home Key (no extra hub): Aqara Smart Lock U200, Schlage Encode Plus, Level Lock Pro.

Home Key only with an Aqara Hub: Aqara Smart Lock U100.

HomeKit lock control, not a tap: August Wi-Fi Smart Lock (4th Gen), Yale Assure Lock 2 Touch + Wi-Fi.

No Home Key: Yale Assure Lock 2 Touch, Lockly Vision Elite, Eufy Security Smart Lock E330 (Video), Schlage Encode Smart Wi-Fi Deadbolt, Wyze Lock Bolt V2.

A Home app tile is not a tap. If the household is Apple, start at the Aqara Smart Lock U200.

Matter is the radio that survives the next hub

Native Matter-over-Thread: Aqara Smart Lock U200, Schlage Encode Plus, Level Lock Pro.

Matter via a $40 Yale Smart Module: Yale Assure Lock 2 Touch, Yale Assure Lock 2 Touch + Wi-Fi.

Matter via Aqara Hub: Aqara Smart Lock U100.

No Matter: August Wi-Fi Smart Lock (4th Gen), Lockly Vision Elite, Eufy Security Smart Lock E330 (Video), Schlage Encode Smart Wi-Fi Deadbolt, Wyze Lock Bolt V2.

A Wi-Fi checkbox is not Matter. If you will change ecosystems, do not buy the first-gen Encode and hope.

Fingerprint is table stakes — except on Schlage and August

Fingerprint is how you unlock with groceries in both hands. It is not a 2024 flagship tax.

Fingerprint on the door: Aqara Smart Lock U200, Yale Assure Lock 2 Touch, Level Lock Pro, Lockly Vision Elite, Eufy Security Smart Lock E330 (Video), Aqara Smart Lock U100, Yale Assure Lock 2 Touch + Wi-Fi, Wyze Lock Bolt V2.

No fingerprint reader: Schlage Encode Plus, August Wi-Fi Smart Lock (4th Gen), Schlage Encode Smart Wi-Fi Deadbolt.

Cold, wet fingers still fail. That is why every fingerprint lock here still ships a keypad. Do not buy the Encode Plus hoping a firmware update grows a reader.

Hub versus built-in Wi-Fi is the Saturday install

Built-in Wi-Fi (app works without a brand hub): Schlage Encode Plus, August Wi-Fi Smart Lock (4th Gen), Lockly Vision Elite, Eufy Security Smart Lock E330 (Video), Schlage Encode Smart Wi-Fi Deadbolt, Yale Assure Lock 2 Touch + Wi-Fi, Wyze Lock Bolt V2.

Thread border router for the Matter radio: Aqara Smart Lock U200, Level Lock Pro. The Encode Plus has Thread and Wi-Fi, so the router is optional for basic remote unlock.

Hub or $40 module for remote access: Yale Assure Lock 2 Touch.

Aqara Hub required for Home Key / Matter: Aqara Smart Lock U100.

A lock on a dead 2.4 GHz porch is a keypad with a dead app. Coverage lives on Best Mesh WiFi Systems and the Wi-Fi 7 buying guide.

Grade 1 is paperwork — not a faster unlock

Independently confirmable Grade 1: Schlage Encode Plus.

Grade 2 residential (or unpublished full-deadbolt grade): everyone else on Best Smart Locks. The Wyze Lock Bolt V2 publishes a cylinder-level BHMA claim, not a full Grade 1 deadbolt.

If the binder is why you opened the tab, buy the Encode Plus. If it is not, do not pay for a certificate.

Fall is when the house sits empty

Shorter evenings. School keys. The first weekend you leave town. A lock you install after the trip is a lock you needed last Friday.

Wire the radio now so guest codes, Home Key, and the Thread border router get a week of real use before the first dark commute. Fingerprint readers learn the household in the first weeks — the Wyze Lock Bolt V2 is honest about that; the flagships are too. A deadbolt does not watch the porch. That is a doorbell. It does not close the garage. That is an opener. It does not set the heat when you leave. That is a thermostat.

This list is not a doorbell, a garage opener, or a thermostat

If the porch already has video, do not buy a camera lock to replace it. The camera ranking is Best Smart Doorbells and The Best Smart Doorbells in 2026.

The other perimeter door is Best Garage Door Openers and The Best Garage Door Openers in 2026.

The same HomeKit / Matter household usually wants a wall plate that speaks the same language. That split is the smart-thermostat buying guide, Best Smart Thermostats, and The Best Smart Thermostats in 2026.

Browse the rest of Home & Kitchen when the lock is one device on the door, not the whole fall kit.

Do not buy a $399 Lockly Vision Elite to fix a doorbell you already own.

Then shop the list

Pick the install, then the tap, then the radio. Then open Best Smart Locks and buy the highest-ranked lock in that lane.

Default retrofit / Home Key: Aqara Smart Lock U200. Grade 1 / built-in Wi-Fi: Schlage Encode Plus. Fingerprint Yale for hub owners: Yale Assure Lock 2 Touch. Retrofit auto-unlock / Airbnb: August Wi-Fi Smart Lock (4th Gen). Invisible: Level Lock Pro. Camera plus lock: Lockly Vision Elite. No-subscription camera: Eufy Security Smart Lock E330 (Video). Aqara with existing hub: Aqara Smart Lock U100. Android Schlage: Schlage Encode Smart Wi-Fi Deadbolt. Hub-free Yale: Yale Assure Lock 2 Touch + Wi-Fi. Sub-$100 fingerprint: Wyze Lock Bolt V2.

The ranking write-up lives in The Best Smart Locks in 2026. This page is the architecture decision. Do not buy the loudest Home Key sticker.

Common Questions

Retrofit vs replacement vs camera — which smart lock should I buy?

Buy retrofit if you rent, like the existing exterior hardware, or want to keep today's physical keys: the Aqara Smart Lock U200 (native NFC Home Key, Matter-over-Thread, fingerprint, USB-C, about $230, currently first at 9.4) is the default; the August Wi-Fi Smart Lock (4th Gen) (about $230) is the auto-unlock / DoorSense / Airbnb lane. Buy full-replacement if you own the door and want a new exterior: the Schlage Encode Plus (about $300) is Grade 1 plus Home Key plus built-in Wi-Fi; the Yale Assure Lock 2 Touch (about $230) is fingerprint-first for hub owners; the Level Lock Pro (about $329) is the invisible deadbolt; the Aqara Smart Lock U100 (about $190) is Home Key only with an Aqara Hub already on the network; the Schlage Encode Smart Wi-Fi Deadbolt (about $250) is the Android Schlage; the Yale Assure Lock 2 Touch + Wi-Fi (about $280) is hub-free Yale fingerprint; the Wyze Lock Bolt V2 (about $70) is the sub-$100 baseline. Buy lock-plus-camera only if you want one device instead of a lock and a doorbell: the Lockly Vision Elite (about $399) or the Eufy Security Smart Lock E330 (Video) (about $280). Architecture first. A Home Key hangtag does not put a camera on a U200 or keep a landlord's exterior hardware on an Encode Plus.

What is the best smart lock in 2026?

For most Apple households that can keep the existing deadbolt, the Aqara Smart Lock U200 — native NFC Home Key, Matter-over-Thread, fingerprint, keypad, USB-C, about $230. It currently leads Best Smart Locks at 9.4. Grade 1 plus built-in Wi-Fi: Schlage Encode Plus. Fingerprint-first Yale for hub owners: Yale Assure Lock 2 Touch. Retrofit with auto-unlock and Airbnb: August Wi-Fi Smart Lock (4th Gen). Invisible-from-outside: Level Lock Pro. Camera plus lock: Lockly Vision Elite. No-subscription camera plus lock: Eufy Security Smart Lock E330 (Video). Aqara value with an existing hub: Aqara Smart Lock U100. Android Schlage: Schlage Encode Smart Wi-Fi Deadbolt. Hub-free Yale fingerprint: Yale Assure Lock 2 Touch + Wi-Fi. Sub-$100 fingerprint: Wyze Lock Bolt V2. Confirm the live community ranking before you buy — votes move. The ranking story is The Best Smart Locks in 2026.

Which smart locks support Apple Home Key?

Native NFC Home Key with no extra hub is the Aqara Smart Lock U200, the Schlage Encode Plus, and the Level Lock Pro. The Aqara Smart Lock U100 reaches Home Key only with an Aqara Hub M2 or M3 on the network — without that hub it is fingerprint and keypad. The August Wi-Fi Smart Lock (4th Gen) and the Yale Assure Lock 2 Touch + Wi-Fi are HomeKit lock control only: the Home app can lock and unlock; you cannot tap an iPhone or Apple Watch to the door. The Yale Assure Lock 2 Touch, Lockly Vision Elite, Eufy Security Smart Lock E330 (Video), Schlage Encode Smart Wi-Fi Deadbolt, and Wyze Lock Bolt V2 do not support Home Key. Power Reserve still unlocks a Home Key lock when the phone battery is dead. Do not buy August hoping a firmware update becomes a tap.

Schlage Encode Plus vs Aqara U200 — which should I buy?

Buy the Aqara Smart Lock U200 if you rent, want to keep the existing exterior keys, or want Home Key plus Matter plus fingerprint at about $230. Currently first at 9.4. Retrofit over a single-cylinder deadbolt in about 15 minutes. Needs a Thread border router — a HomePod, a newer Echo, or an Aqara Hub — for the Matter-over-Thread radio. Buy the Schlage Encode Plus if you need independently confirmable BHMA Grade 1, want built-in Wi-Fi so you do not need a Thread border router, or want Schlage's after-sale parts. About $300. Currently second at 9.3. Full-replacement deadbolt. New exterior hardware and new physical keys. Both ship native NFC Home Key. The Encode Plus is the only Grade 1 pick on Best Smart Locks. Do not buy the first-gen Schlage Encode Smart Wi-Fi Deadbolt hoping Home Key appears later. The secure element is not in that hardware.

Which smart locks work with Matter?

Native Matter-over-Thread — no brand hub, just a Thread border router — is the Aqara Smart Lock U200, the Schlage Encode Plus, and the Level Lock Pro. Matter via a bridge: both Yale Assure Lock 2 Touch models (the $40 Yale Smart Module) and the Aqara Smart Lock U100 (Aqara Hub M2 or M3). The August Wi-Fi Smart Lock (4th Gen), Lockly Vision Elite, Eufy Security Smart Lock E330 (Video), Schlage Encode Smart Wi-Fi Deadbolt, and Wyze Lock Bolt V2 do not support Matter in 2026. Matter is the radio that still talks to the hub you own in 2028. A Wi-Fi sticker is not the same thing. If you will change ecosystems, start at a native Matter lock.

Do I need a smart lock with a built-in camera?

Only if you would rather install one device than a lock plus a doorbell. The Lockly Vision Elite at about $399 is the 1080p all-in-one with PIN Genie — a randomized keypad that rotates digits to defeat shoulder-surfing — plus fingerprint, RFID, key, and app. Currently sixth at 8.5. No Home Key. No Matter. Alexa and Google only. The Eufy Security Smart Lock E330 (Video) at about $280 is the no-subscription 2K answer with local storage. Currently seventh at 8.3. Same ecosystem limits. If the porch already has a video doorbell, that money belongs on the Aqara Smart Lock U200 or the Schlage Encode Plus, and the camera stays on Best Smart Doorbells. A $399 lock does not become a better deadbolt because the listing said doorbell.

BHMA Grade 1 vs Grade 2 — does it matter on a smart lock?

Grade 1 is the highest residential durability rating — cycle count and forced-entry resistance you can document. On Best Smart Locks, only the Schlage Encode Plus independently confirms Grade 1. Everyone else that publishes a grade is Grade 2, which is the normal residential lock. Grade 1 matters for insurance discounts, rental-property compliance, and a door that takes daily abuse. It does not make Home Key faster. It does not add Matter. A Grade 2 deadbolt thrown into a reinforced strike plate still beats a Grade 1 lock installed crooked. If the paperwork is why you opened the tab, buy the Encode Plus. If it is not, do not pay $70 extra for a certificate you will never show.

What is the best smart lock under $200 — or under $100?

Under $200: the Aqara Smart Lock U100 at about $190 is the rational Aqara — fingerprint, keypad, eight unlock methods, AAA batteries, currently eighth at 8.1. Home Key and Matter require an Aqara Hub M2 or M3 already on the network. Without that hub, U100 plus hub crosses the $230 Aqara Smart Lock U200, which has the radio built in. Under $100: the Wyze Lock Bolt V2 at about $70 is the fingerprint plus Wi-Fi baseline — AI self-learning reader, keypad, IPX5, UL 20-minute fire rating, currently eleventh at 7.5. No Home Key. No Matter. No native HomeKit. The Wyze app plus Alexa and Google. Do not buy the U100 hoping a hub appears in the box, and do not buy the Wyze as a cheaper Encode Plus.