Is the Aqara Smart Lock U400 worth it?
The Aqara Smart Lock U400 is a top pick with a 9.5/10 consensus score. Experts highlight only lock pairing uwb time-of-flight with apple home key express for true hands-free entry and matter over thread is local mesh, so it keeps working through an internet outage. Best for: Apple buyers who want true UWB hands-free walk-up entry.
Verified 2d ago
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Aqara Smart Lock U400
Apple Home Key Smart Lock (UWB)
Expert consensus
How we scoreKey Features
- ✓ UWB time-of-flight auto-unlock wired into Home Key Express
- ✓ Matter over Thread, native in Apple Home
- ✓ Fingerprint reader plus touchscreen keypad
- ✓ Home Key power-reserve tap
Best For
Aqara Smart Lock U400 vs. the alternatives
How the Aqara Smart Lock U400 stacks up against other Security options on price, expert consensus, and ecosystem support.
| Product | Price | Consensus | Works With | Verdict |
|---|---|---|---|---|
| Aqara Smart Lock U400This page | $269.99 | 9.5/10 | Matter | Must Buy |
| Schlage Sense Pro Smart Deadbolt | $338.74 | 6.7/10 | Matter | Recommended |
The Aqara Smart Lock U400 ($269.99 list) earns a 9.5/10 expert consensus, versus the Eufy Security S330 Video Doorbell at $109.99 list (8.7/10 consensus). It works with Matter.
What Experts Agree On
What Experts Love
- ✓ Only lock pairing UWB time-of-flight with Apple Home Key Express for true hands-free entry
- ✓ Matter over Thread is local mesh, so it keeps working through an internet outage
- ✓ Four phone-free ways in per Tom's Guide: fingerprint, keypad code, NFC card, and a traditional key
- ✓ First lock to pass the Aliro 1.0 secure-credential standard
Common Criticisms
- ✗ BHMA Grade 3 bolt trails the Grade 1 picks on raw force resistance
- ✗ Roughly 6 month battery is shorter than the Ultraloq Bolt Mission's 12-18 months
- ✗ UWB hands-free requires an iPhone 11 or newer with a UWB chip
Frequently Asked Questions
Is the Aqara Smart Lock U400 worth it?
The Aqara Smart Lock U400 earns a 9.5/10 consensus score and is rated "Must Buy". At $269.99, it is best for Apple buyers who want true UWB hands-free walk-up entry. It ranks among the top picks in its category.
How much does the Aqara Smart Lock U400 cost?
The Aqara Smart Lock U400 is priced at $269.99. With a 9.5/10 score and a "Must Buy" rating, that price represents strong value relative to the ~7.5/10 average for Security products. Prices shift often, so check the live figure before buying.
Who is the Aqara Smart Lock U400 best for?
The Aqara Smart Lock U400 is best for Apple buyers who want true UWB hands-free walk-up entry. Experts rate it "Must Buy" with a 9.5/10 consensus.
How does the Aqara Smart Lock U400 compare to other Security options?
Among the Security products we have aggregated, the Aqara Smart Lock U400 ranks above average with a 9.5/10 score. See our full category comparison for head-to-head details.
What smart home systems does the Aqara Smart Lock U400 work with?
The Aqara Smart Lock U400 works with Matter.
What are the best alternatives to the Aqara Smart Lock U400?
If the Aqara Smart Lock U400 ($269.99, 9.5/10) is not the right fit, the closest alternatives in Security are Eufy Security S330 Video Doorbell, Ring Video Doorbell 4. Compare them on price, ecosystem support, and expert consensus to find your match.
What are the pros and cons of the Aqara Smart Lock U400?
The main strengths of the Aqara Smart Lock U400 are only lock pairing uwb time-of-flight with apple home key express for true hands-free entry and matter over thread is local mesh, so it keeps working through an internet outage. The most-cited downside is bhma grade 3 bolt trails the grade 1 picks on raw force resistance. Overall, experts rate it "Must Buy" with a 9.5/10 consensus score.
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Sources & Methodology
Consensus score based on available data. See how we build consensus scores.
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you.This is a consensus review — we did not test this product ourselves. Always verify current prices and availability before purchasing.
Independence notice: Smart Home Explorer is an independent publication. Aqara and other product names, logos, and brands referenced on this page are the property of their respective owners and are used for identification purposes only. This review is not sponsored by, affiliated with, or endorsed by Aqara or any other manufacturer named in this article.