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).
Need help with this in California?
Zomg The Handyman provides professional smart home installation across all of California. Licensed, 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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