It has a nice image but it only works with the imilab app, while the previous model EC3 plays in xiaomi home. I was disappointed because I wanted to have all the cameras in xiaomi home that I have and other sensors. Never mind, I'll connect it to Alexa. Oh no. I connected it but their Alexa skill is useless. It doesn't open the camera. "Hmm.. the camera isn't responding". Shame about the 100€.

update: After about 3 months of use, it disconnected from the network and won't reconnect with anything.

update 2: I tried pairing it from another device and it reconnected. Very good as a device, lousy software.

4 weeks of battery life. Automatically stores in the cloud, if you pay. The highest security in case someone takes the camera and breaks into the house. Notification comes in one minute if a person is detected in the camera's area. I have installed another camera, the same model but I have to pay again for its cloud. The camera only matches with the receiver of the same model. Expensive choice but reliable and cutting-edge technology. You can match up to 4 cameras of the same model. Clear image up to 4 meters at night. Recommended...

Very easy installation, tremendous range, very stable, didn't need a restart or reconnection in the month that I have it. Basically, you put it somewhere and forget about it, you only need to reconnect it for charging. The human detection is flawless, it has never missed a person. However, be aware that it has a small lag of about 2 seconds from the moment it detects until it starts recording. So it's not suitable for covering a small passage (e.g. it's not suitable for a hallway where someone will pass momentarily). It needs to be positioned in a way that it has the person in its frame for several seconds. I have placed it in the corner of a large garden, it works very well. Recommended.

Edit
After some time, I am forced to give it a low rating. The notifications are completely unreliable. Usually, they come after 2 minutes, but often they come after 15 or even 20 minutes. It no longer makes sense to place them. I am considering replacing them, I have bought 2.

Good image quality, stable signal, and communication with the Hub. The range from the hub needs improvement and, of course, a decrease in price. The battery life is very good, at least 2 months with several visits for monitoring and deactivating the night light feature it has

Excellent camera, it does exactly what its specifications say. Very good AI in face recognition, good resolution, and battery that lasts for months. Highly recommended

What do you want from a wireless camera with a battery?
To have a long battery life. It performs very well (4-5 activations per day).
To always activate when it detects motion. 70% success rate.
To not lose connection. It doesn't lose connection.
To always notify you in a timely manner. It doesn't always do it and not always timely.
To have good clarity day and night. It has.
To connect at any time and see live. It doesn't always do it.
All of this with a 24-hour connection and a good WiFi signal.

update
It is performing better in notifications now and in retrigger, which previously simply didn't work.