Winner
Updated November 2026
Data from the official Aqara and Wyze sites.
2026 verdict
In an Apple household that wants Home Key and Matter on the front door, the Aqara Smart Lock U400 is the smart lock that fits and the Wyze Palm Lock does not.
It adds fingerprint, NFC and Apple Home Key entry, Thread and Bluetooth, native Apple Home, SmartThings and Home Assistant support, a tamper alert and a stronger IP65 rating. The Wyze Palm Lock takes a different route to keyless entry: palm-vein recognition that works in the dark, a secondary battery that takes over while the main one charges, and direct Alexa and Google Home support over Wi-Fi with no hub. Both keep a keypad, a physical key, anti-peep codes and a USB-C emergency port, and both lock themselves after the door closes. Choose the Aqara Smart Lock U400 for Apple Home and Matter, and the Wyze Palm Lock for a touchless lock in an Alexa or Google home.
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Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Aqara Smart Lock U400 | Wyze Palm Lock | Winner |
|---|---|---|---|
| Price | $269.99 | $129.98 | Wyze Palm Lock |
| Rating | 4.1 | 4.6 | Wyze Palm Lock |
| Weather Resistance | IP65 | IP53 | Aqara Smart Lock U400 |
| Connectivity | Bluetooth, Thread Protocol, Other | 2.4 GHz WiFi | Aqara Smart Lock U400 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa | Aqara Smart Lock U400 |
| Lock/Unlock System | Remote, Bluetooth, Passcode, Fingerprint, NFC Tag, Apple Home Key, Physical Key | Remote, Passcode, Physical Key | Aqara Smart Lock U400 |
| Battery Life | 6 months | 6 months | Tie |
| One-Time Password | YES | YES | Tie |
| Anti-peep Password | YES | YES | Tie |
| Emergency Fingerprint | NO | NO | Tie |
| Doorbell | NO | NO | Tie |
What the differences mean
How you unlock
The Aqara Smart Lock U400 offers fingerprint, keypad, NFC, Apple Home Key and a key. The Wyze Palm Lock reads your palm, takes a keypad code or a key, and has no fingerprint, NFC or Home Key.
Apple Home and Matter
The Aqara Smart Lock U400 is a Matter lock with native Apple Home, SmartThings and Home Assistant support. The Wyze Palm Lock has no Apple Home, Matter or SmartThings, and its Home Assistant support is not documented.
Alexa and Google Home
The Wyze Palm Lock connects to both over its own 2.4 GHz Wi-Fi. The Aqara Smart Lock U400 has no Wi-Fi and reaches Alexa and Google Home only through an Aqara hub.
Weather and alerts
The Aqara Smart Lock U400 is rated IP65 against IP53 on the Wyze Palm Lock, which matters on an exposed door, and it adds a tamper alert. Both send lock, unlock and low-battery notifications.
Battery backup
Both use a built-in battery rated for 6 months with a USB-C emergency port. The Wyze Palm Lock adds a secondary battery that keeps the lock running while the main pack recharges.
Which one to buy if
- you unlock with an iPhone or Apple Watch
The Aqara Smart Lock U400 supports Apple Home Key and native Apple Home over Matter.
- children struggle with codes or fingerprints
The Wyze Palm Lock opens with a wave of the hand, and its owners single out how well it works for kids.
- your home runs on Alexa or Google Home with no hub
The Wyze Palm Lock talks to both over its own Wi-Fi, while the Aqara Smart Lock U400 needs an Aqara hub for them.
- the door faces the weather
IP65 on the Aqara Smart Lock U400 is the tougher rating of the two.
- your front door has a storm or screen door
The Wyze Palm Lock wakes on motion nearby, and its owners report a storm door draining the battery; the Aqara Smart Lock U400 lists no motion detection.
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 $129.98
- - Rating: 4.1 vs 4.6
$129.98
- + Price: $129.98
- + Rating: 4.6
- - Weather Resistance: IP53 vs IP65
- - Connectivity: 2.4 GHz WiFi vs Bluetooth, Thread Protocol, Other
What owners say
Both groups of owners are, above all, impressed by how they get in without a key: Aqara Smart Lock U400 owners describe ultra-wideband unlocking that opens the door as they approach with an iPhone or Apple Watch, and Wyze Palm Lock owners describe a palm read that works instantly even in pitch darkness and succeeds where fingerprint readers failed for their kids. From there the stories differ. Aqara Smart Lock U400 owners praise a fast motor and the rechargeable USB-C battery, and complain about a plasticky housing and a confusing HomeKit and Thread setup. Wyze Palm Lock owners praise the dual-battery backup and the absence of any subscription, and warn that a storm or screen door can keep it awake and drain the battery unless you switch to its tap-to-wake mode.
Frequently Asked Questions
Which is better overall: Aqara Smart Lock U400 or Wyze Palm Lock?
The Aqara Smart Lock U400 for most buyers, thanks to more ways in (fingerprint, NFC, Apple Home Key), Matter with native Apple Home and SmartThings, a tamper alert and an IP65 rating. The Wyze Palm Lock is the better pick for touchless palm entry in an Alexa or Google Home.
What is the biggest difference between the Aqara Smart Lock U400 and the Wyze Palm Lock?
The ecosystem. The Aqara Smart Lock U400 is a Matter over Thread lock built around Apple Home, while the Wyze Palm Lock is a Wi-Fi lock that works with Alexa and Google Home and has no Apple Home or Matter support.
Does the Wyze Palm Lock work with Apple Home?
No. The Wyze Palm Lock supports Alexa and Google Home but not Apple Home or Matter. The Aqara Smart Lock U400 works with Apple Home natively and adds Apple Home Key.
Which lock has the better battery backup?
Both have a built-in battery rated for 6 months and a USB-C emergency port. The Wyze Palm Lock also carries a secondary battery that takes over while the main one charges, which the Aqara Smart Lock U400 does not.
Who should buy the Aqara Smart Lock U400?
Apple Home users who want Home Key, fingerprint and NFC entry, a Matter lock that also works with SmartThings and Home Assistant, and an IP65 rating for an exposed entrance.
Who should buy the Wyze Palm Lock?
Alexa and Google Home households that want touchless palm entry, families whose kids find codes hard, and anyone who values a backup battery and no subscription.
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