Smart Locks
10 Best Smart Locks for Use existing deadbolt (2026)
Ranked by our scoring engine based on real product data and feature analysis. Optimized for this specific use case.
Top 3 at a glance
1
Best OverallNuki
Nuki Smart Lock & Keypad 2, Keyless Door System with Auto-Lock, Fingerprint and Code Access, App Control, Easy Setup, Works with Alexa, Google, for Secure and Easy Home Entry
Best for: use existing deadbolt with multiple options
31/31
Why this pick
Retrofit locks work with your existing deadbolt. The Nuki Smart Lock leads because it delivers use existing deadbolt with multiple options — exactly what this ranking prioritizes.
Use existing deadboltMultiple optionsAlexa or Google HomeBalance of security & ...
2
Runner-UpSwitchBot
SwitchBot Retrofit, IP65
Best for: use existing deadbolt with multiple options
25/31
Why this pick
The SwitchBot Smart Lock takes a different approach: apple home or matter (pick the platform your lock should integrate with).
Use existing deadboltMultiple optionsApple Home or MatterBalance of security & ...
Why this pick
The Aqara Smart Lock takes a different approach: replace the entire deadbolt (choose the installation style that suits your door).
TouchscreenReplace the entire dea...Multiple optionsAlexa or Google Home
Why this pick
The eufy Security Smart stands out with wi fi and camera.
Wi FiCameraReplace the entire dea...Multiple options
5
#5 Pickigloohome
igloohome (New!) Deadbolt Go Smart Lock w/Fingerprint, Digital Keys, Remote PIN Codes
Best for: replace the entire deadbolt with multiple options
17/31
Why this pick
The igloohome (New!) Deadbolt differentiates with replace the entire deadbolt (choose the installation style that suits your door).
Replace the entire dea...Multiple optionsNo hub neededBalance of security & ...
Why this pick
The Level Lock Pro differentiates with replace the entire deadbolt (choose the installation style that suits your door).
Replace the entire dea...Multiple optionsApple Home or MatterBalance of security & ...
Why this pick
The Lockly Secure Pro stands out with wi fi.
Wi FiReplace the entire dea...Multiple optionsNo hub needed
Why this pick
The Lockly Visage Zeno stands out with wi fi.
Wi FiReplace the entire dea...Multiple optionsApple Home or Matter
Why this pick
The Schlage Encode Plus stands out with wi fi.
Wi FiReplace the entire dea...Multiple optionsApple Home or Matter
Why this pick
The ULTRALOQ Bolt SE stands out with wi fi.
Wi FiReplace the entire dea...Multiple optionsApple Home or Matter
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