Smart Door Locks
Apple Home Key, NFC, fingerprint, keypad and app on a Zigbee and Bluetooth deadbolt — there is no Wi-Fi, so remote access needs an Aqara hub. Matter support, no cloud account, no subscription, and Aqara states it meets BHMA Grade 3. 8 months on AA batteries, by Aqara’s estimate.
#1 of 5 smart door locks
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The Aqara Smart Lock U100 beats the category average in 4 of 4 areas.
It beats the category average in 4 of 4 areas.
| Spec | Smart Lock U100 | Against the rest |
|---|---|---|
| Zigbee Mature mesh protocol. Works locally with Zigbee2MQTT or ZHA in Home Assistant. | Yes | beats 100% |
| Cloud account required You must create a manufacturer account to set it up. Some devices stop working if the cloud shuts down. | No | beats 67% |
| Matter Works with every major platform locally. Check which device types are supported — some features may stay app-only. | Yes | beats 50% |
| Spec | Smart Lock U100 | Against the rest |
|---|---|---|
| Thread Low-power mesh used by Matter. Needs a Thread border router (HomePod mini, Nest Hub, SkyConnect…). | No | behind 50% |
Aqara Smart Lock U100
70
ULTRALOQ Bolt SE
65
Compare
Aqara Smart Lock U400
61
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TP-Link Tapo DL110
47
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eufy Smart Lock C220
24
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Score 70 vs 53 category average · 6 of 7 scored specs known. How we score
“Works with Alexa” can mean full local control or a cloud skill that only switches it on. Here’s which one.
17 of 21 specs sourced
| Spec | Smart Lock U100 | Source | vs all smart door locks |
|---|---|---|---|
| Unlock methods Auto-unlock uses your phone's location. Fingerprint and keypad work without a phone, useful for kids and guests. | AppKeypadFingerprintNFCApple Home Key | Manufacturer spec sheet | |
| Auto-lock Locks itself after the door closes. Works best with a door sensor. | Yes | Manufacturer spec sheet | |
| Door sensor Knows if the door is open or closed, not just locked. | ? Not published |
| Spec | Smart Lock U100 | Source | vs all smart door locks |
|---|---|---|---|
| Installation Retrofit locks sit on the inside and keep your existing key. Renters usually want retrofit. | Full lock replacement | Manufacturer spec sheet | |
| Lock standard Euro profile cylinders are common in DE, NL, FR and the Baltics. Check the emergency function on your cylinder. | US deadbolt | Manufacturer spec sheet | |
| Security certification Independent tests such as SKG (NL), VdS (DE) or ANSI/BHMA (US). | Meets BHMA Grade 3 standard (manufacturer statement) | Manufacturer spec sheet |
| Spec | Smart Lock U100 | Source | vs all smart door locks |
|---|---|---|---|
| Battery life Manufacturer estimate at ~8 operations per day. Wi-Fi locks drain faster than Thread or Bluetooth. | 8 months | Manufacturer spec sheet | beats 40% |
| Battery Rechargeable packs are convenient but the lock is offline while charging unless you have a spare. | AA | Manufacturer spec sheet |
| Spec | Smart Lock U100 | Source | vs all smart door locks |
|---|---|---|---|
| Wi-Fi 2.4 GHz has longer range. Dual band helps in crowded apartment buildings. | No | Manufacturer spec sheet | |
| Thread Low-power mesh used by Matter. Needs a Thread border router (HomePod mini, Nest Hub, SkyConnect…). | No | Manufacturer spec sheet | behind 50% |
| Zigbee Mature mesh protocol. Works locally with Zigbee2MQTT or ZHA in Home Assistant. | Yes | Manufacturer spec sheet | beats 100% |
| Bluetooth Usually only for setup or short-range control. | Yes | Manufacturer spec sheet |
| Spec | Smart Lock U100 | Source | vs all smart door locks |
|---|---|---|---|
| Matter Works with every major platform locally. Check which device types are supported — some features may stay app-only. | Yes | Manufacturer spec sheet | beats 50% |
| Home Assistant Core integrations ship with Home Assistant. HACS integrations are community-maintained and can break after updates. | ? Not published | ||
| Alexa | Yes | Manufacturer spec sheet | |
| Google Home | Yes | Manufacturer spec sheet | |
| Apple Home | Yes | Manufacturer spec sheet | beats 40% |
| Spec | Smart Lock U100 | Source | vs all smart door locks |
|---|---|---|---|
| Works offline Keeps working with your internet down — schedules, automations and local apps still run. | ? Not published | ||
| Cloud account required You must create a manufacturer account to set it up. Some devices stop working if the cloud shuts down. | No | User manual | beats 67% |
| Subscription for key features Features locked behind a monthly fee, e.g. history, AI detection or remote access. | No | Manufacturer spec sheet | |
| Firmware updates via HA Update the firmware from Home Assistant without the vendor app (Zigbee2MQTT OTA, Matter OTA). | ? Not published |
Published by Aqara. We check these links every week.
Buy from the Amazon store in your country.
| Region | Buy |
|---|---|
| US for you | from $149.99 |
| UK | Buy at |
Price as of 4 Nov 2026 · amazon.com
Smart Lock U400$269.99
Tapo DL110$149.99
Smart Lock C220
$119.99$169.99
Assure Lock 2 Keypad with Wi-Fi
$195.22$259.99
Bolt SE
$79.99$99.99
Didn’t find your answer? Ask us
Yes, so it pairs locally with Apple Home, Google Home, Alexa, SmartThings and Home Assistant.
No. All features work without a subscription.
The US version (), sold on amazon.com. Other regions use different plugs and model numbers — see “Variants” above.
The Aqara manufacturer’s warranty for your region. In the UK and EU you also have statutory rights against the seller; check the listing on Amazon for details.
