Hi everyone,
We’re excited to announce that Aqara Smart Lock U400 now supports Aliro NFC unlock via Samsung Wallet. 
Samsung Galaxy users can now enjoy a faster, more secure way to access their homes. Update your phone and lock firmware to enjoy seamless access！
Key Features
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NFC Access: Open your door by simply tapping your Samsung Galaxy smartphone against the lock—no need to open an app.
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Works Without Power: Unlock your door even if your phone’s battery has run out.
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Family Sharing: Easily invite family members to use the Home Key through the Samsung SmartThings app.
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Future-Ready (Aliro): As an Aliro-ready lock, the U400 will support UWB-based hands-free unlocking for Samsung smartphones in Q2 2026.
Supported Versions
- Samsung Wallet Global: 6.4.30
- Samsung Wallet Korea: 5.9.02
- Samsung Wallet Digitalkey: 1.5.10.8
- Digitalkey Framework: 1.5.1.06
Important Notes
- Both the Wallet app and Samsung phone OS must be updated.
- OS Version numbers differ between Global and Korean versions.
- After updating OS and app on supported phones, Aliro NFC unlock works with Aqara U400 (firmware v3104).
- A Samsung gateway is required for network connection.
Supported Samsung Phones
Galaxy Z Fold 3
Galaxy Z Flip 3, 4, 5, 6, 7
Galaxy S21, S22, S23, S24, S25
Galaxy S21+, S21 Ultra
Galaxy S21 FE, S23 FE, S24 FE, S25 FE
Galaxy A36 5G, A56 5G
Galaxy Xcover Pro 2, Xcover 7 Pro
For more details on the Smart Lock U400, please visit the Aqara Official Website.
Happy unlocking! 
*NFC feature is supported on Galaxy flagship models released after 2021 (except devices running Android 14 / One UI 6.0 and above), all global A56 and A36 models released after 2023, selected A55 and A35 markets, and all global XCover Pro7 models. Galaxy Watch is not supported.