Best Smart Lock (2026) — Keypad, Biometric, App Picks
Smart locks let family in without keys, give one-time codes to delivery and Airbnb guests, and integrate with security systems. Pick by lock type (deadbolt, lever) and ecosystem.
Smart locks have hit mainstream pricing — $150-300 for the leaders. Pick one that matches your existing deadbolt cutout (almost always standard 2-1/8" hole) and your home's smart ecosystem.
Quick Comparison
| Pick | Best For | Approx Price |
|---|---|---|
| Best Retrofit | August Wi-Fi Smart Lock 4th Gen | $200-$240 |
| Best Keypad Replacement | Schlage Encode Smart WiFi Deadbolt | $240-$300 |
| Best Premium Biometric | Aqara U200 Smart Lock with Fingerprint | $280-$340 |
Our Picks
Retrofit vs Replacement
Retrofit (August): keeps your existing deadbolt and key. Replaces only the inside thumbturn. Easiest install (10 minutes), works with everyone's existing key copies.
Full replacement (Schlage Encode, Yale Assure): replaces the entire deadbolt. New deadbolt, new keypad, app control. More features, slightly more involved install.
Keypad vs Biometric vs App-Only
For families and rentals: keypad. Multiple codes for family members and guests, expirable codes for Airbnb cleaners. Schlage Encode and Yale Assure SL lead here.
For premium use: biometric (fingerprint). Aqara U200, Lockly Vision Elite. Faster than typing a code; iffy in cold weather.
App-only locks (no keypad/key) like Level Bolt: only for tech-savvy users who never lose their phone.
Battery Life
Battery life: 6-12 months on AA cells. Modern locks pre-warn at 20% battery via app. Don't ignore it — once dead, you're locked out (most have a backup 9V battery contact on the bottom for emergency power).
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Zomg The Handyman provides professional smart home installation across all of California. Insured, 4.9★ rated. Same-day available.
Get a Smart Home Quote →Frequently Asked Questions
Will a smart lock fit my door?
Almost certainly. Standard 2-1/8" deadbolt hole + 1" edge bore covers 99% of US doors.
Do I lose my key?
August retrofit: keep existing keys. Schlage Encode/Yale Assure: new keys (most include traditional key backup).
What if WiFi goes down?
Lock still works manually + via Bluetooth. WiFi only needed for remote control.
How long do batteries last?
6-12 months on 4 AA. App alerts at 20% battery.
How much for pro install?
$99-149 for retrofit, $149-199 for full replacement. Same-day in California.
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