Xiaomi Smart Lock: A Complete Guide to Smart Locks from Xiaomi in 2026

Xiaomi smart locks are no longer exotic — they are now a complete alternative to traditional mechanical locks integrated into the smart home ecosystem. If you haven’t heard of the smart lock concept, it’s time to figure out what it is, how it works, and why millions of users around the world are abandoning keys in favor of a smartphone, fingerprint, or even facial recognition.

In this article, we will take a closer look at all aspects of Xiaomi smart locks, from the basic Mi Smart Door Lock models to advanced solutions with support for Apple HomeKit and Google Assistant. You will learn how these devices interact with other gadgets of the ecosystem (for example, with Xiaomi Gateway or Aqara cameras), what communication protocols they use (Zigbee, Bluetooth, Wi-Fi), and what to do if the lock suddenly stopped opening.

Spoiler: Xiaomi's smart lock is not just a key replacement, but a full-fledged security center with access logs, remote control and even built-in alarms. But there are also nuances that the manufacturer prefers to keep silent about, such as some models require a constant connection to the hub (gateway) to work with the cloud, and without it lose some of the functions — this is critical to consider when choosing.

What is Xiaomi Smart Lock and how does it work?

The keyless principle behind any smart lock is that instead of a mechanical key, it uses a digital ID. In the case of Xiaomi, this can be:

• 📱 Mobile app (Mi Home, Aqara Home)
• 👆 Fingerprint (inline scanner)
• 🔑 PIN code (introduced on the touch panel)
• 🏠 Voice Assistant (Alice, Google Assistant, Siri)
• 📡 RFID-card/foam (for compatible models)

But the main difference from a traditional electronic lock is integration into the smart home ecosystem.

• 🔄 Automatically turn on the light when opening the door (via Xiaomi Smart Plug).
• 📹 Get notifications from the camera if someone tries to break the lock.
• 📅 Set up an access schedule for a housekeeper or courier.
• 🚨 Activate the siren in case of unauthorized hacking.

Technically, Xiaomi smart locks work on two main schemes:

1. Local control – the lock communicates directly with the smartphone via Bluetooth (radius) ~10 meters. Suitable for opening the door "on approach".
2. Cloud management – the lock connects to Wi-Fi or Zigbee hub (such as Xiaomi Gateway 3), allowing you to manage it from anywhere in the world.

⚠️ Note: Models without Zigbee or Wi-Fi support (e.g. Mi Smart Door Lock) 1S) They won't be able to send notifications if you're far from home.

Types of smart locks Xiaomi: comparison of models 2022-2026

Xiaomi’s smart lock line includes devices under the Mi, Aqara and Mijia brands, which vary in price, functionality and compatibility. Below are the current models for 2026:

The choice of model depends on your tasks:

• 🏡 The apartment is suitable for Mi Smart Door Lock 2K It allows you to see who is standing at the door without even opening it.
• 🏢 For the office, better Aqara. U100 with Zigbee support and employee access log.
• 🚪 For a cottage or garage will be enough budget Mijia E1 — It is easy to install and does not require a hub.

How to install and configure Xiaomi Smart Lock

The smart lock installation consists of two steps: mechanical installation and software configuration. Let's look at both in detail.

Mechanical installation

Most Xiaomi smart locks are installed instead of the standard lock (cut models) or on top of it (overhead).

• 🔧 Screwdriver (cross/flat).
• 📏 Roulette and pencil markup.
• 🔨 Drilling (if you need to drill new holes).
• 🔋 4 batteries AA battery (depending on the model).

Make sure the door opens smoothly (without skewing)|

Measure the thickness of the door (most locks support 35-60 mm)|

Check compatibility with the existing latch|

Prepare a backup key in case of failure-->

Step-by-step instructions for the overhead lock (e.g. Mi Smart Door Lock) 1S):

1. Remove the old lock, leave only the latch.
2. Attach the mounting plate of the new lock to the door and mark the places for fastenings.
3. Then, put the slack on the plate (in the box).
4. Install the outer and inner padlock panels by connecting them through the axis.
5. Insert the batteries and check the mechanism manually.

2.Configure via Mi Home

After mechanical installation, you need to connect the lock to the application:

1. Download Mi Home (Android/iOS) and register.
2. Click Add Add the device (+) → Smart lock.
3. Choose your model from the list.
4. Follow the instructions on the screen (usually you need to press the button on the lock to pair).
5. Link the lock to your Xiaomi account.

If the lock supports Zigbee (e.g. Aqara) U100), You need to connect it to the hub (Xiaomi Gateway) and then set it up in Mi Home or Aqara Home.

⚠️ Attention: The first time you connect, the lock may request a firmware update. Don't interrupt the process - this may cause the Bluetooth module to crash. If the update is hanging, try restarting the lock by holding the reset button for 10 seconds.

Integration with a smart home: automation scenarios

The main advantage of Xiaomi’s smart lock is the ability to create chains of automation with other devices.

To set up scenarios like this:

1. Open Mi Home → Automation → Create a script.
2. Select a trigger (for example, a smart lock is open).
3. Add actions (turn on the light, send a notification, etc.).
4. Save the script and test it out.

Advanced users can use Home Assistant to make the settings more flexible, such as setting up a lock opening on a schedule or when approaching home (via smartphone geolocation).

💡

If you have multiple users (family, employees), set up an individual user experience for each user. PIN-So you can track who opened the door when, in the log, who opened the door.

Security of Xiaomi smart locks: myths and reality

The main fear when buying a smart lock is, "What if it gets hacked?" Let's take a look at the real risks and the security measures.

Vulnerabilities and how to avoid them

Any device connected to the network is potentially vulnerable, and Xiaomi’s smart locks are subject to the following risks:

• 🔓 Selection PIN-code - if you use simple combinations (1234, 0000).
• 📡 Bluetooth signal interception is theoretically possible using outdated protocols (new models use Bluetooth 5.0 with encryption). AES-128).
• 🌐 Remote Cloud Attack – If an attacker gains access to your Mi Account.
• 🔋 Failure to discharge the battery - most locks have a backup connector for external power supply.

How to minimize the risks:

• 🔐 Use complex ones. PIN-codes (at least 6 characters, no repeating numbers).
• 📱 Enable two-factor authentication in your Xiaomi account.
• 🔄 Regularly update the lock firmware (via Mi Home).
• 🏠 Install an additional mechanical latch on the door (in case of electronic failure).

What to do if the lock does not open

Situations where a smart lock refuses to work fall into two categories:

1. Software failures (the application freezes, does not synchronize with the hub).
2. Hardware problems (batteries are discharged, motor broke).

Algorithm of action:

1. Check the battery (most models have an indicator or voice warning).
2. Reset the lock (usually there is a hidden reset button under the lid).
3. Try to open the door with a mechanical key (it always comes with a set).
4. If the problem is synchronization, remove the lock from Mi Home and add it again.
5. In extreme cases, use emergency power (connect power bank to the Micro-USB or Type-C connector on the lock case).

⚠️ Attention: If Aqara Castle D100 stopped responding to Apple HomeKey, check if HomeKit settings in the iPhone have reset. → Home → Home settings → Reset the Home configuration and reconnect the lock.

Comparison of Xiaomi Smart Lock with analogues (Nuki, Yale, Samsung)

Xiaomi smart locks aren’t the only option on the market, but let’s look at how they compare to competitors in key ways:

Benefits of Xiaomi:

• 💰 Price – 1.5-2 times cheaper than European analogues.
• 🏠 Integration – fits perfectly into the Mi Home ecosystem.
• 🔧 Flexibility – there are models for any task (from the cottage to the office).

Disadvantages:

• 🌍 Localization – some models do not have a Russian-language interface in the application.
• 🔄 Hub Dependence – Xiaomi Gateway is needed for remote management.
• 🛠️ Installation complexity – cut-in models require skills with door mechanisms.

💡

If you want maximum compatibility with Apple HomeKit and Google Home, look for Aqara D100 — This is the only model in the Xiaomi lineup with support for Apple HomeKey (opening via iPhone without running the application).

Where to buy and what to look for when choosing

When buying a Xiaomi smart lock, consider the following nuances:

1. Door compatibility

Before buying, measure:

• 📏 Thickness of the door (most locks support 35-60 mm).
• 🔳 Distance from the edge of the door to the latch (standard - 60 or 70 mm).
• 🔄 Opening direction (left/right).

Management methods

Determine what opening methods you need:

• 👆 Fingerprint – handy, but scanner may not work well with wet or dirty fingers.
• 🔢 PIN-code is reliable, but you need to remember the combination.
• 📱 Bluetooth – opening at the approach of the smartphone (risk if the phone runs out of power).
• 🔑 Mechanical key – mandatory as a backup option.

3.Where to buy.

Official Xiaomi dealers in Russia:

• 🛒 Mi Store (official store).
• 🛒 The Connection, M. Video, Eldorado.
• 🌍 AliExpress (only with verified sellers with a rating of 98%+).

Average prices for 2026:

• Mi Smart Door Lock 1S — 6 000–7 500 ₽.
• Aqara Smart Lock U100 — 9 000–11 000 ₽.
• Mi Smart Door Lock 2K — 12 000–14 000 ₽.

⚠️ Note: When buying on AliExpress, check with the seller whether the model supports Russian in the application and firmware. Some "global" versions may have only English interface.

FAQ: Frequent questions about Xiaomi smart locks