I have been thinking about a smart lock for a long time, and finally arranged it a few days ago. I have been comparing online and offline for a long time, but I still don’t understand one thing: why do some locks only cost a few hundred yuan, while others cost thousands of yuan?

For this reason, I went to the store selling smart locks downstairs to consult, but the boss told me: the lock cylinders are all the same. The lock cylinder of anti-theft doors is divided into three levels: A, B, and C. Level C has the strongest anti-theft ability.

Almost all smart locks use C-level lock cylinders. But smart locks are more than just lock cylinders, so although the lock cylinders are the same, the prices of different locks still differ by several thousand yuan – there are three main differences between cheap locks and expensive locks.

Difference 1. Different texture

The value of the lock can be distinguished at a glance from its appearance. Cheap locks have almost no sense of design and are not even as good-looking as some mechanical locks. Later, when I was installing locks in my house, I looked at my neighbor’s house and it did look very cheap▼

If you touch it with your hands, or use it, the difference will be even more obvious. Cheap locks will have relatively large resistance during the opening and closing process, and the sound of the opening and closing is also a rough mechanical sound.

For high-quality locks, the switch is very smooth. Or completelyNo force is required: it is enough to complete the security identification, and the unlocking process is completely operated by the motor in the lock. During the unlocking process, you can hear the light and powerful sound of the motor, which is very smooth.

Difference 2. Safety is different

\”Safety depends on the lock cylinder\”, this It is a more traditional way of thinking. The safety of a mechanical lock depends almost entirely on the lock cylinder. The higher the security of the lock cylinder, the more difficult it is to open the lock.

But for smart locks, the security of the lock core is not enough. A good smart lock will also be upgraded in the following aspects:

1. Violent demolition, that is, smashing the door lock. Mechanical locks or cheap smart locks can only fight with \”strongness\” when faced with violent unlocking. But a really good smart lock will also sound an alarm and use a mobile app to remind the owner during the violent demolition process.

2. Chip encryption, smart locks have more unlocking methods and more cracking methods. How to prevent someone from using technical means? What about unlocking by copying unlocking cards, fingerprints, etc.? The answer is to strengthen the security of the chip and perform multiple encryption on the chip to make technical unlocking completely ineffective.

3. \”Accident\”, sometimes a child or pet accidentally opens the door lock; sometimes the fingerprints remaining on the outside of the door lock are leaked Password; sometimes thieves open the lock through the peephole…These \”accidents\” can be completely avoided on high-quality smart locks through automatic anti-locking.

Difference 3. Different intelligence

Smart door locks, in addition to safety and accidents, It also needs to be \”intelligent\” enough to bring a lot of convenience to our lives.The door lock I chose is Kaidis K20 Max Plus. Let’s take it as an example to talk about how easy it is to use a good smart door lock.

The first is the convenience of unlocking methods: dual-chip + 3D face recognition, safe and fast . The door automatically unlocks when the owner stands at the door, making it particularly user-friendly when holding something in both hands.

The second is the convenience when visitors arrive: there is a doorbell on the door lock, press the doorbell, and a voice call will appear on our mobile app remind. By connecting the voice, you can talk to guests through the door lock.

Want guests to enter the room first? simple! Still through the mobile app, you can quickly obtain the temporary password and announce it to the guest through voice, so that the guest can enter the door first.

Finally, there is security convenience: the door lock is another electronic peephole. You can check the situation outside the door through your mobile phone at any time. When someone is wandering outside the door, our mobile phone will also receive a short video.

I have used smart cameras before, which also have this kind of function, but they are paid-you need to pay to store the video in the cloud. All functions of Shi K20 Max Plus smart door lock are free for life!

If you also want to buy a set of the same smart lock as mine, you can click the link below. ~

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