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Aqara Smart Lock U100VSAlfred DB2-B
For most buyers, the Aqara Smart Lock U100 wins. Aqara Smart Lock U100 edges ahead of Alfred DB2-B for most buyers, especially when use existing deadbolt matters most. However, Alfred DB2-B is the stronger pick if you prioritize use existing deadbolt.
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Updated Apr 9, 20264+ dimensionsNo sponsored rankingsPrices checked today
Aqara Smart Lock U100
Aqara Smart Lock U100
$140
See on Amazon →
Aqara Smart Lock U100 · $140
Winner
vs
Alfred DB2-B
Alfred DB2-B
$181
See on Amazon →
Alfred DB2-B · $181
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Smart Locks / Versus
What matters most to you?
Primary unlocking method?
Smart home ecosystem?
Remote access & automation?
Top pick
Aqara Smart Lock U100
by Aqara
$140Checked yesterday
Match score100%
Use existing deadboltFingerprint sensorApple Home or Matter
$139.99 on Amazon
vs
Alfred DB2
by Alfred
$181Checked recently
Match score22%
Use existing deadboltFingerprint sensorApple Home or Matter
$181.18 on Amazon
Aqara Smart Lock U100FeatureAlfred DB2
Multiple options
Primary unlocking method
Numeric keypad
Alexa or Google Home
Smart home ecosystem
No hub needed
Must have built‑in remote & auto
Remote access & automation
Okay with optional hub for remote
Replace the entire deadbolt
Do you want to install your
Replace the entire deadbolt
Balance of security & convenience
Feature
Balance of security & convenience

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Key differences: Aqara Smart Lock U100 vs Alfred DB2

Choosing between the Aqara Smart Lock U100 and the Alfred DB2-B comes down to what matters most to you in a smart locks. Fingerprint sensors offer instant access without codes, keypads let you share PINs, and app‑only locks rely solely on your phone.

The Aqara Smart Lock U100 leans toward multiple options, while the Alfred DB2-B offers numeric keypad. Locks that support Apple Home or Matter work best in Apple environments. The Aqara Smart Lock U100 leans toward alexa or google home, while the Alfred DB2-B offers no hub needed.

Essential remote control means built‑in Wi‑Fi and auto‑lock/unlock. The Aqara Smart Lock U100 leans toward must have built‑in remote & auto, while the Alfred DB2-B offers okay with optional hub for remote.

The Aqara Smart Lock U100 stands out for users who value use existing deadbolt and fingerprint sensor and apple home or matter. Meanwhile, the Alfred DB2-B is the stronger pick if use existing deadbolt and fingerprint sensor and apple home or matter are your top priorities.

Rather than declaring an absolute winner, we recommend using the interactive comparison above — your priorities determine which product scores higher.

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