Smart Door Locks
Fingerprint, keypad, app and auto-unlock on a US deadbolt, with Matter over Thread as well as Wi-Fi and Bluetooth. Works locally with Apple Home, Google Home, Alexa and Home Assistant through Matter. ULTRALOQ rates the AA batteries at 8 months.
#2 of 5 smart door locks
was $99.99
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The ULTRALOQ Bolt SE beats the category average in 3 of 3 areas.
It beats the category average in 3 of 3 areas.
| Spec | Bolt SE | Against the rest |
|---|---|---|
| Thread Low-power mesh used by Matter. Needs a Thread border router (HomePod mini, Nest Hub, SkyConnect…). | Yes | beats 75% |
| Matter Works with every major platform locally. Check which device types are supported — some features may stay app-only. | Yes | beats 50% |
Aqara Smart Lock U100
70
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ULTRALOQ Bolt SE
65
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 65 vs 53 category average · 5 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.
15 of 21 specs sourced
| Spec | Bolt SE | 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. | AppKeypadFingerprintAuto-unlock | Manufacturer spec sheet | |
| Auto-lock Locks itself after the door closes. Works best with a door sensor. | ? Not published | ||
| Door sensor Knows if the door is open or closed, not just locked. | ? Not published |
| Spec | Bolt SE | 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). | ? Not published |
| Spec | Bolt SE | 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 | Bolt SE | Source | vs all smart door locks |
|---|---|---|---|
| Wi-Fi 2.4 GHz has longer range. Dual band helps in crowded apartment buildings. | 2.4 GHz | Manufacturer spec sheet | |
| Thread Low-power mesh used by Matter. Needs a Thread border router (HomePod mini, Nest Hub, SkyConnect…). | Yes | Manufacturer spec sheet | beats 75% |
| Zigbee Mature mesh protocol. Works locally with Zigbee2MQTT or ZHA in Home Assistant. | No | Manufacturer spec sheet | beats 0% |
| Bluetooth Usually only for setup or short-range control. | Yes | Manufacturer spec sheet |
| Spec | Bolt SE | 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. | Matter | Home Assistant docs | |
| Alexa | Yes | Manufacturer spec sheet | |
| Google Home | Yes | Manufacturer spec sheet | |
| Apple Home | Yes | Manufacturer spec sheet | beats 40% |
| Spec | Bolt SE | Source | vs all smart door locks |
|---|---|---|---|
| Works offline Keeps working with your internet down — schedules, automations and local apps still run. | Yes | Manufacturer spec sheet | |
| Cloud account required You must create a manufacturer account to set it up. Some devices stop working if the cloud shuts down. | ? Not published | ||
| Subscription for key features Features locked behind a monthly fee, e.g. history, AI detection or remote access. | ? Not published | ||
| Firmware updates via HA Update the firmware from Home Assistant without the vendor app (Zigbee2MQTT OTA, Matter OTA). | ? Not published |
Published by ULTRALOQ. We check these links every week.
Buy from the Amazon store in your country.
| Region | Buy |
|---|---|
| US for you | from $79.99 |
| UK | from £177.86 |
Price as of 4 Nov 2026 · amazon.com
Smart Lock C220
$119.99$169.99
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Smart Lock U100$149.99
Assure Lock 2 Keypad with Wi-Fi
$195.22$259.99
Didn’t find your answer? Ask us
Yes. Schedules and local control keep working offline; only remote access needs the internet.
Yes, via Matter. See the setup steps above.
Yes, so it pairs locally with Apple Home, Google Home, Alexa, SmartThings and Home Assistant.
The US version (), sold on amazon.com. Other regions use different plugs and model numbers — see “Variants” above.
The ULTRALOQ 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.
