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Aqara Smart Lock U400

Ranked #18 of 33 in Best Smart Locks: Yale, Schlage, Kwikset, Lockly, Ultraloq & More (2026). Here is every spec we scored, where it came from, and how it compares.

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#18

Aqara Smart Lock U400

Best for: UWB hands-free, fingerprint and Home Key

5.3/10

What we like

    Watch out for

    • Security rating tier not published by Aqara

    Score breakdown

    Fingerprint reader 15%
    Keypad / access codes 15%
    NFC / wallet key 10%
    Wi-Fi without buying a bridge 15%
    Matter 10%
    Auto-lock 10%
    Security rating tier * 15%
    Battery life 10%

    * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

    Fingerprint readerYes
    Keypad / access codesYes
    NFC / wallet keyYes
    Wi-Fi without buying a bridgeNo
    MatterYes
    Auto-lockNo
    Security rating tierNot listed
    Battery life6 months
    Unlock methodsUWB hands-free, Apple Home Key, fingerprint, touchscreen passcode, NFC card (sold separately)
    ConnectivityMatter over Thread
    Weather ratingIP65
    Battery lifeRechargeable, up to 6 months per charge
    Security grade (maker)"BHMA-certified" (no grade given)
    Auto-lockNot published by the maker
    PriceCheck price
    Check price at Amazon
    Specs source:

    Aqara Smart Lock U400 head-to-head

    Head-to-headLockly Visage Zeno Series vs Aqara Smart Lock U400 Featured inBest Matter Smart Locks (2026)

    How it compares

    Open the full comparison table

    Lockly Visage Zeno Series
    7.8/10
    #1 · Face, fingerprint, keypad and Home Key in one
    Lockly Secure Pro Zeno Series
    7.5/10
    #2 · Fingerprint, keypad and Apple Home Key with Wi-Fi
    Kwikset Halo Select Plus
    7.5/10
    #3 · Adds Apple Home Key to Halo Select
    Aqara Smart Lock U300
    6.8/10
    #4 · Lever lock with fingerprint, Home Key and Matter
    Lockly Secure Pro (latest version)
    6.5/10
    #5 · Fingerprint and PIN Genie keypad with Wi-Fi
    Kwikset Halo Select
    6.5/10
    #6 · AAA-rated touchscreen lock with Wi-Fi and Matter
    Lockly Vision Elite
    6.5/10
    #7 · Video doorbell lock with the longest listed battery
    Schlage Encode Plus Smart WiFi Deadbolt
    6.5/10
    #8 · AAA-rated Wi-Fi deadbolt with Apple Home Key
    Aqara Smart Lock U200
    6.3/10
    #9 · Retrofit-style deadbolt with Matter over Thread
    Yale Assure Lock 2 Touch with Wi-Fi
    6.3/10
    #10 · Fingerprint plus touchscreen, Wi-Fi built in
    Ultraloq Bolt Fingerprint
    6.1/10
    #11 · Fingerprint and keypad deadbolt, Wi-Fi or Matter
    Ultraloq Bolt SE
    6.1/10
    #12 · Fingerprint and keypad, Matter or Wi-Fi
    Ultraloq Latch 5 Pro
    6.0/10
    #13 · Lever lock with fingerprint, Matter and a 1-year battery
    Yale Assure Lock 2 Plus with Wi-Fi and Apple Home Keys
    5.7/10
    #14 · Keyless touchscreen lock with Apple Home Key
    Aqara Smart Lock U100
    5.6/10
    #15 · Fingerprint and Home Key, up to 8 months
    Ultraloq Bolt NFC
    5.6/10
    #16 · Apple Home Key and NFC cards plus keypad
    Ultraloq Bolt Pro
    5.5/10
    #17 · Wi-Fi and Matter at the same time
    Lockly Flex Touch Pro
    4.8/10
    #19 · Retrofit fingerprint and keypad lock
    Yale Assure Lock 2 Keypad with Wi-Fi
    4.8/10
    #20 · Grade 2 keypad deadbolt with built-in Wi-Fi
    Yale Assure Lock 2 Touchscreen with Wi-Fi
    4.8/10
    #21 · Touchscreen keypad deadbolt with Wi-Fi
    Schlage Arrive Smart WiFi Deadbolt
    4.5/10
    #22 · AAA-rated Wi-Fi deadbolt with access codes
    Schlage Encode Smart WiFi Deadbolt
    4.5/10
    #23 · AAA-rated Wi-Fi keypad deadbolt
    Schlage Encode Smart WiFi Lever
    4.5/10
    #24 · AAA-rated Wi-Fi keypad lever
    Schlage Sense Pro Smart Deadbolt
    4.5/10
    #25 · Matter over Thread with Apple Home Key and hands-free unlock
    Kwikset Aura Reach
    4.3/10
    #26 · Matter and Bluetooth keypad deadbolt
    Lockly Model 7S
    4.0/10
    #27 · PIN Genie keypad deadbolt, up to 10 months
    Yale Approach Lock with Wi-Fi and Keypad
    4.0/10
    #28 · Retrofit lock that keeps your exterior hardware
    Aqara Smart Lock U50
    3.8/10
    #29 · Keypad, NFC card and Home Key
    Yale Smart Lock with Matter
    3.3/10
    #30 · Keypad deadbolt with Matter over Thread
    Schlage Connect Smart Deadbolt (Z-Wave)
    3.0/10
    #31 · AAA-rated keypad deadbolt for Z-Wave hubs
    August Wi-Fi Smart Lock
    2.5/10
    #32 · Compact retrofit lock with built-in Wi-Fi
    Ultraloq Bolt Mission
    2.5/10
    #33 · UWB hands-free unlock with Matter