The first time you arrive home with arms full of groceries and walk straight in by tapping a code, you wonder why you waited so long. A modern keyless lock costs $80-$300, installs with a screwdriver in 25 minutes, and eliminates the daily friction of fishing keys out of pockets and bags. The bigger question is which technology fits your door, your household, and the level of paranoia you bring to home security.
The Three Main Categories
Keyless lock options break down into three families: keypad-only, smart (Wi-Fi or Bluetooth connected), and biometric. Each solves a different problem, and the right pick depends on whether you actually need remote access or just want to skip carrying keys.
Keypad-Only Locks
The simplest entry. You enter a 4- to 8-digit code on a touchpad, the lock opens. No app, no Wi-Fi, no monthly fees. Battery powered (typically 9V or 4 AA cells). Brands like Schlage Camelot Encode (the keypad-only version), Kwikset SmartCode 270, and Defiant offer reliable mechanical-deadbolt-plus-keypad combinations from $80 to $180.
Best fit: homeowners who want convenience without smart home integration. Rental properties where landlords need to change codes between tenants. Vacation homes. Anyone uncomfortable putting their front door on the internet.
Smart Connected Locks
Smart locks add Wi-Fi or Bluetooth, an app, and remote control. You can lock from the office, grant temporary codes to dog walkers and cleaners, get notifications when kids come home, and integrate with Alexa, Google Home, or Apple HomeKit. Pricing runs $150-$350.
The dominant players in this category:
- August Wi-Fi Smart Lock (4th gen): Retrofits over your existing deadbolt — keeps the exterior look of your current door
- Schlage Encode Plus: Built-in Wi-Fi (no separate hub needed), HomeKit and Apple Home Key support
- Yale Assure Lock 2: Sleek touchscreen, optional Wi-Fi or Z-Wave modules, strong residential grade
- Level Lock+: Hidden inside the door — looks identical to a regular deadbolt from outside
- Aqara U100: Apple Home Key, fingerprint, NFC, and code — premium feature set at mid-tier price
Biometric Locks
Fingerprint readers add a third unlock method on top of keypads and apps. Reliability has improved dramatically in the last three years — modern capacitive sensors from Eufy, Aqara, and Lockly read accurately in 0.3-0.5 seconds and store 50-100 fingerprints. Pricing starts around $150 and tops out at $500 for premium units like Lockly Vision Elite with built-in video doorbell.
Worth knowing: fingerprint readers struggle with wet hands, callused or worked hands (think gardeners and contractors), and very young children whose prints have not stabilised. Always set a backup code.
Installation Reality
Most keyless locks fit a standard 2 1/8 inch bore hole in doors 1 3/8 to 1 3/4 inches thick. If you already have a deadbolt, swapping it for a keyless model takes 20-40 minutes and requires only a Phillips screwdriver. The steps are straightforward:
- Remove the existing deadbolt — two screws on the interior side, lift the cylinder out from the exterior
- Remove the strike plate from the door frame
- Confirm the latch length matches (most are 2 3/8 inches with a 2 3/4 inch optional)
- Install the new latch in the door edge, screw down at top and bottom
- Slot the exterior keypad/cylinder through the door, align with the latch tailpiece
- Attach the interior assembly with the included long screws — do not overtighten
- Reinstall the strike plate, ideally with 3-inch screws into the framing for security
- Power up with batteries, run setup per the app or keypad prompts
Older homes with non-standard door thickness (some pre-war doors run 1 1/2 inches or 2 inches) may need an adjustable model or a door modification.
Battery Life Reality
Manufacturer battery claims tend to be optimistic. Real-world numbers from regular family use:
- Keypad-only locks: 12-18 months on a set of 4 AA alkaline cells
- Smart Bluetooth locks: 8-12 months
- Smart Wi-Fi locks (always-on): 4-7 months
- Biometric locks with Wi-Fi: 5-9 months
Lithium AA cells (Energizer Ultimate Lithium) extend life by 30-50% in cold climates and are well worth the few dollars premium for exterior locks in the north. Most locks alert you when battery hits 20% and again at 10%.
Security Considerations
A keyless lock is not inherently more or less secure than a traditional deadbolt — both are only as strong as the door, frame, and strike plate they connect to. Look for ANSI/BHMA Grade 1 or Grade 2 certification on residential locks. Grade 1 is commercial-spec and overkill for most homes; Grade 2 is the residential gold standard.
Real security improvements with smart deadbolts:
- No physical key to copy, lose, or have stolen
- Remote audit trail showing who entered and when (smart locks)
- Time-limited or one-time codes for service providers
- Auto-lock after 30-60 seconds prevents the “did I lock the door?” anxiety
Real risks to manage:
- Code shoulder-surfing — pick a model with random-digit prompts before code entry
- Bluetooth attacks — keep firmware updated
- Battery death lockouts — most locks have backup contact points (9V battery touch, mechanical key override)
- Wi-Fi outages affecting smart features — local Bluetooth still works
Hub vs No Hub
Older smart locks required a separate hub (SmartThings, Wink, dedicated bridges). Modern Wi-Fi-direct locks like Schlage Encode Plus, Yale Assure Lock 2 with Wi-Fi module, and Aqara U100 connect directly to your home Wi-Fi without additional hardware. Skip the hub-required models unless you already run a smart home ecosystem that benefits from one.
Renters and Apartment Dwellers
Most leases prohibit replacing the deadbolt without landlord approval. Three workarounds:
- Retrofit-only locks like the August Smart Lock (4th gen) install on the inside thumb-turn without changing the exterior cylinder — fully reversible
- Latchbolt overlay devices like the Igloohome Deadbolt 2S can be removed cleanly
- Get written landlord approval and offer to reinstall the original deadbolt at lease end
Final Picks by Use Case
For a primary front door with a smart home ecosystem: Schlage Encode Plus or Aqara U100. For a basic family front door without smart home plans: Schlage Camelot keypad or Kwikset SmartCode 270. For rentals or short-term lets: Igloohome Smart Deadbolt with offline code generation. For maximum stealth: Level Lock+ keeps the look of your existing door while delivering full smart functionality. Whatever you pick, install with 3-inch strike plate screws into framing — that single upgrade does more for door security than any lock alone.
