The Schlage Encode Plus is the best smart door lock for most homes in 2026: it has built-in Wi-Fi so no hub is required, supports Apple Home Key, and comes from a lock maker with a long track record. The Yale Assure Lock 2 is the most flexible, with swappable connectivity modules, and the August Wi-Fi Smart Lock is the easiest choice for renters because it keeps your existing deadbolt and keys. Choose by how your door is built, which smart-home platform you use and how you want to unlock it.
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Quick comparison of the best smart door locks
| Pick | Best for | Type | Unlock methods | Connectivity | Price tier |
|---|---|---|---|---|---|
| Schlage Encode Plus | Best overall | Full deadbolt replacement | Keypad, key, app, Apple Home Key | Built-in Wi-Fi | Upper-mid to premium |
| Yale Assure Lock 2 | Best flexibility | Full deadbolt replacement | Keypad or touchscreen, key, app (version dependent) | Swappable module (Wi-Fi, Zigbee, Z-Wave, Matter, Bluetooth) | Mid to upper-mid |
| August Wi-Fi Smart Lock (4th gen) | Best for renters | Retrofit over interior thumb-turn | App, key (existing), auto-unlock | Built-in Wi-Fi | Mid-range |
| Level Lock+ | Best hidden design | Compact in-door deadbolt replacement | Key card, app, Apple Home Key, key | Bluetooth with Matter and Home Key support | Premium |
| Kwikset Halo Touch | Best fingerprint option | Full deadbolt replacement | Fingerprint, key, app | Built-in Wi-Fi | Mid to upper-mid |
Specifications come from manufacturer product pages and change between hardware revisions. Always confirm unlock methods and smart-home support for the exact model you plan to buy.
Best overall: Schlage Encode Plus
Schlage’s Encode Plus replaces your deadbolt with a sturdy lock that has a built-in keypad, Wi-Fi radio and support for Apple Home Key. That means you can tap an iPhone or Apple Watch to unlock, and it works without a hub. Because Schlage has made mechanical locks for a century, the physical hardware, finish options and key cylinders have a reputation for durability.
The drawbacks are price and the app, which is functional but not the slickest. Because it is Wi-Fi-based, it draws more battery power than a Bluetooth-only lock, so expect to replace its AA cells a few times a year with heavy use.
Best flexibility: Yale Assure Lock 2
The Assure Lock 2 comes in keypad and touchscreen versions, in several finishes and with interchangeable connectivity modules for Wi-Fi, Zigbee, Z-Wave or Matter-capable options, depending on the model. If your smart home grows, you can swap the module rather than the lock. It also suits people who already own a hub or who plan to use Home Assistant or similar systems.
Because options differ, you need to buy the exact version you want, and prices vary with the module. The base lock without a module is a standalone keypad deadbolt, so check the box contents.
Best for renters: August Wi-Fi Smart Lock (4th gen)
August mounts over the interior side of your existing deadbolt, so you keep your exterior hardware, keys and keyway. Install takes about 10 to 15 minutes with a screwdriver, and removal leaves no damage, which is ideal for rentals. It supports auto-lock, auto-unlock based on your phone and app-based guest access, and it has built-in Wi-Fi so you do not need a bridge.
A retrofit lock does not add a keypad, so you will need a separate accessory for code entry. Because it turns the existing thumb-turn, a stiff or misaligned deadbolt can strain the motor and battery. Fix door alignment first.
Best hidden design: Level Lock+
Level Lock+ hides the smart hardware inside the door, so it looks like an ordinary deadbolt from both sides. It supports Apple Home Key and Matter, uses key cards and keeps a clean, modern appearance that suits design-focused homes.
It costs more than most rivals, and it is not a retrofit over your existing lock, so check that your door prep is compatible. If appearance is the priority, it is worth the premium.
Best fingerprint option: Kwikset Halo Touch
The Halo Touch includes a fingerprint reader, a built-in Wi-Fi connection and a key backup, so you can unlock the door with a finger without handling a keypad or phone. It is good for households with kids who struggle to remember codes, and it stores multiple fingerprints.
Fingerprint readers can struggle with wet or dirty hands and in extreme cold, so a backup key or a code option is important. Wi-Fi models use batteries faster than Bluetooth locks, so keep spare cells on hand.
How to choose a smart door lock
Full replacement or retrofit?
Full replacement locks, such as Schlage and Yale, swap the entire deadbolt and often add a keypad. They are stronger and offer more unlock options, but you need to measure your door and may need to drill or adjust. Retrofit locks, such as August, keep your hardware and are easier to install, especially for renters.
Door preparation: a quick measurement checklist
- Measure the door thickness: most locks fit 1.375 to 1.75 inches.
- Check the backset: the distance from the door edge to the center of the hole, usually 2.375 or 2.75 inches.
- Confirm the bore hole diameter, usually 2.125 inches.
- Look at the strike plate and deadbolt throw to ensure the bolt extends fully.
- Test that the existing deadbolt turns smoothly by hand before adding a motorized lock.
Security grade
The ANSI/BHMA grade rates durability and security of the mechanical lock. Grade 1 is the highest for residential use, Grade 2 is common for mid-range hardware. Check the manufacturer’s listing for the grade of the exact model.
Connectivity: Wi-Fi, Bluetooth, Zigbee, Z-Wave, Thread and Matter
Wi-Fi locks work without a hub and let you control them remotely, but use more battery. Bluetooth locks need to be near your phone unless paired with a bridge. Zigbee and Z-Wave locks need a compatible hub. Matter, and Thread in particular, aim to work across Apple, Google and Alexa platforms.
Battery life: a worked example
If a lock uses four AA batteries and is rated for about 6 months with heavy use, a household that opens the door 30 times a day might see closer to 4 months. That means about 8 AA batteries a year. Over five years, that is 40 batteries. A rechargeable pack or a lock with a low-power Bluetooth design can reduce this. Always set low-battery alerts.
Backup access
Even good smart locks run out of power. Keep a physical key option, or a way to power the lock from the outside with a 9-volt battery if supported. Keep a spare key with a trusted person.
Ownership realities and common mistakes
- Skipping door alignment. A binding bolt drains the battery and causes jams.
- Using weak codes. Avoid birthdays or repeating digits, and delete guest codes after use.
- Ignoring firmware updates. Updates fix bugs and security issues.
- Leaving the original lock’s key on a hook by the door. A lock is only as strong as its key control.
- Not testing the lock in winter. Cold can reduce battery output, so test and keep spares.
What wears first is usually the batteries and keypad touch surfaces, followed by the motor in heavily used retrofit locks.
Which smart door lock should you buy?
| Your situation | Choose |
|---|---|
| Homeowner who wants a reliable all-rounder | Schlage Encode Plus |
| Larger smart home with hub or changing platform | Yale Assure Lock 2 |
| Renter or keep existing key | August Wi-Fi Smart Lock (4th gen) |
| Minimal look, Apple users | Level Lock+ |
| Fingerprint entry | Kwikset Halo Touch |
Frequently Asked Questions
Are smart door locks secure?
A well-built smart lock can be as secure as a quality mechanical deadbolt, especially a Grade 1 model. Use a strong code, enable two-factor authentication on your account and keep firmware updated.
What happens if my smart lock battery dies?
Most locks warn you well before they die and include a backup, such as a physical key or terminals for a 9-volt battery. Retrofit locks keep your original key working.
Do smart locks need Wi-Fi?
Not always. Bluetooth locks work near your phone, while Zigbee and Z-Wave models need a hub. Wi-Fi models offer remote control without a hub, but use more power.
Can I install a smart lock myself?
Usually yes. Most retrofit locks need only a screwdriver, and full replacement locks need basic tools and a standard door preparation. Check your door’s measurements before buying.
Which smart lock works with Apple Home?
Schlage Encode Plus and Level Lock+ support Apple Home Key, letting you tap your iPhone or Apple Watch to unlock. Check each manufacturer’s listing for the exact model.
Can smart locks be used by renters?
Yes, retrofit locks like August leave your existing deadbolt in place and remove without damage. Confirm with your landlord, especially for building access rules.
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