Winner
Updated November 2026
Data from the official Aqara and Wyze sites.
2026 verdict
For an Apple household that wants hands-free entry, the Aqara Smart Lock U400 is the better of these two smart locks.
Its ultra-wideband unlock opens the door as you walk up with an iPhone or Apple Watch, and it adds Matter over Thread, HomeKit, a fast motor, a rechargeable battery and seven ways in including fingerprint, keypad, NFC, Apple Home Key and a mechanical key. The Wyze Auto-Lock Bolt v2 counters with a lower price, a fast AI-learning fingerprint reader, an easy install and built-in Wi-Fi, but it has no HomeKit, Matter or NFC and connects only on 2.4 GHz Wi-Fi. Pick the Aqara for Apple Home and touchless entry, and the Wyze for affordable fingerprint entry inside the Wyze ecosystem.
vs
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Aqara Smart Lock U400 | Wyze Auto-Lock Bolt v2 | Winner |
|---|---|---|---|
| Price | $269.99 | $79.00 | Wyze Auto-Lock Bolt v2 |
| Rating | 4.1 | 4.5 | Wyze Auto-Lock Bolt v2 |
| Weather Resistance | IP65 | IP53 | Aqara Smart Lock U400 |
| Battery Life | 6 months | 8 months | Wyze Auto-Lock Bolt v2 |
| Connectivity | Bluetooth, Thread Protocol, Other | 2.4 GHz WiFi | Aqara Smart Lock U400 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Alexa | Aqara Smart Lock U400 |
| Lock/Unlock System | Remote, Bluetooth, Passcode, Fingerprint, NFC Tag, Apple Home Key, Physical Key | Remote, Passcode, Fingerprint, Physical Key | Aqara Smart Lock U400 |
| Anti-peep Password | YES | YES | Tie |
| Emergency Fingerprint | NO | NO | Tie |
| Doorbell | NO | NO | Tie |
What the differences mean
Unlock methods
The Aqara Smart Lock U400 offers ultra-wideband hands-free unlock, Apple Home Key and NFC tags on top of fingerprint, keypad and a rekeyable mechanical key. The Wyze Auto-Lock Bolt v2 covers fingerprint, keypad, app and physical key, but it has no UWB, NFC or Home Key.
Ecosystem and radios
The Aqara Smart Lock U400 works over Matter and Thread with native Apple HomeKit and Home Assistant support. The Wyze Auto-Lock Bolt v2 uses built-in 2.4 GHz Wi-Fi for the Wyze app and Alexa, with no HomeKit, Matter, Thread or Zigbee, and its Bluetooth entry is undocumented.
Weather resistance
The Aqara Smart Lock U400's outer panel is rated IP65 for dust, splashes and heavy rain. The Wyze Auto-Lock Bolt v2 is rated IP53, which is a lighter level of dust and water protection.
Power
The Aqara Smart Lock U400 runs on a built-in rechargeable battery rated around six months per charge, topped up over USB-C. The Wyze Auto-Lock Bolt v2 uses eight AA cells rated around eight months, with a USB-C emergency port and two keys as backup, so it lasts longer between power events but needs a stock of batteries.
Motor speed
Owners describe the Aqara Smart Lock U400's motor as noticeably quicker than typical Schlage or Yale locks, snapping the deadbolt open and locked with clear feedback. The Wyze Auto-Lock Bolt v2 is not slow, but its advantage is the fingerprint reader rather than the throw speed.
Which one to buy if
- you run Apple Home and want touchless unlock
The Aqara Smart Lock U400 unlocks by UWB as you approach and supports Apple Home Key and HomeKit.
- the door is exposed to rain
Its IP65 outer panel is rated for heavy rain, against IP53 on the Wyze.
- you want the lowest-cost fingerprint lock
The Wyze Auto-Lock Bolt v2 is the budget pick of the pair, with a fast AI-learning fingerprint reader.
- you are already in the Wyze ecosystem
It lives in the same Wyze app as Wyze cameras, with instant notifications and an access log.
- you want the longest time between battery changes
The Wyze's eight AA cells are rated around eight months, longer than the Aqara's six-month rechargeable pack.
Winner
$269.99
- + Weather Resistance: IP65
- + Connectivity: Bluetooth, Thread Protocol, Other
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- - Price: $269.99 vs $79.00
- - Rating: 4.1 vs 4.5
$79.00
- + Price: $79.00
- + Rating: 4.5
- + Battery Life: 8 months
- - Weather Resistance: IP53 vs IP65
- - Connectivity: 2.4 GHz WiFi vs Bluetooth, Thread Protocol, Other
What owners say
Owners of both locks praise a fast, reliable biometric unlock and an install that most people finish themselves. Aqara Smart Lock U400 owners rave about the UWB unlock that opens the door like magic as they walk up, a motor they call two to three times quicker than their old lock, the rechargeable USB-C battery they can top up from a power bank, and Apple Home Key and Matter over Thread working well. Their complaints are a housing and battery cover that feel plasticky, a HomeKit and Thread setup that can confuse until it is sorted, and Google Home and Alexa needing an Aqara Hub. Wyze Auto-Lock Bolt v2 owners highlight the fingerprint reader that unlocks in about a second and learns with use, the under-ten-minute install with batteries included, built-in Wi-Fi with remote control and notifications, and the USB-C emergency port plus two physical keys. Their gripes are the bulkier body, 2.4 GHz-only Wi-Fi setup, fingerprints that can be hard to enroll for elderly users, and the lack of HomeKit, Matter, NFC or palm entry.
Frequently Asked Questions
Which is better overall: Aqara Smart Lock U400 or Wyze Auto-Lock Bolt v2?
The Aqara Smart Lock U400 for Apple households and anyone who wants touchless UWB entry, Matter over Thread, HomeKit and IP65 weather resistance. The Wyze Auto-Lock Bolt v2 is the better value for affordable fingerprint entry inside the Wyze app, with an easy install and a longer-rated battery.
What is the biggest difference between the Aqara Smart Lock U400 and the Wyze Auto-Lock Bolt v2?
How you unlock and what it connects to. The Aqara Smart Lock U400 adds UWB hands-free, NFC and Apple Home Key over Matter and Thread with HomeKit, while the Wyze Auto-Lock Bolt v2 relies on fingerprint, keypad and built-in Wi-Fi with Alexa only.
Does the Wyze Auto-Lock Bolt v2 work with Apple HomeKit or Matter?
No. The Wyze Auto-Lock Bolt v2 supports Alexa and the Wyze app over 2.4 GHz Wi-Fi, with no Apple HomeKit, Matter, NFC or palm entry. The Aqara Smart Lock U400 is the one of the pair with HomeKit and Matter over Thread.
What is UWB unlocking and does the Aqara Smart Lock U400 need anything for it?
Ultra-wideband lets the Aqara Smart Lock U400 detect your iPhone or Apple Watch and unlock as you walk up. It requires an Apple Home setup with a Thread-enabled hub such as an Apple TV or HomePod and a UWB-capable iPhone or Apple Watch.
How is each lock powered?
The Aqara Smart Lock U400 has a built-in rechargeable battery rated around six months per charge, topped up over USB-C. The Wyze Auto-Lock Bolt v2 uses eight AA batteries rated around eight months, with a USB-C emergency port and two physical keys as backup.
Who should buy which one?
Buy the Aqara Smart Lock U400 for Apple Home, hands-free UWB entry and an exposed door. Buy the Wyze Auto-Lock Bolt v2 for a low-cost fingerprint deadbolt in a Wyze household that does not need HomeKit or Matter.
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