Dahua DH-IPC-HFW1320S-W IP Camera Compatibility: China vs Local Market & Model Differences

Hello

About a month ago I bought a Dahua IP camera in a monitoring store, model DH-IPC-HFW1320S-W, the equipment works great without stuttering the preview of the high-quality image on the smartphone.
I would like to expand my monitoring system, I was thinking about buying more cameras from this manufacturer (probably the same model) but these cameras are not cheap because one costs about PLN 600.
I searched the web and found Dahua cameras at much lower prices on the well-known Chinese portal, the cameras look identical to those on our market, they have good opinions, only the model names are different. Do you think these cameras will work without a problem?
Is it too risky a purchase?
I thought about these models:

https://pl.aliexpress.com/item/Dahua-genuine-...k-camera-DH-IPC-HDBW4431R-AS/32660032589.html

https://pl.aliexpress.com/item/Original-Dahua...amera-3MP-HD-1080P-with-wifi/32671830868.html

Maybe someone had to deal with Dahua cameras from China, please help.
best regards

With all due respect, there are tons of fakes on aliexpress. You have to be very careful with your purchases. Opinions can also be fabricated.
On the other hand, the prices of the distributor in Poland must include VAT, profit and customs duty.
Goods from such auctions may also be enriched with due VAT and customs duty when crossing the border.

I think I will risk one piece, I'm only worried about the firmware because I do not know how it is, they are Chinese cameras with English firmware installed.
At some auctions they write not to update, I think it is worth taking the risk and checking.
One camera from China is cheaper by half than an identical camera in Poland.

Hello, did you buy one of these cameras?

A week ago I received the same link as in the first link. At first glance, everything is fine - a box with dahua inscriptions, a logo on the casing, good workmanship. The price is 2/3 lower than in Poland and I wonder if it is a fake. How can you recognize a left dahue?

I don't know, check what image quality heh

You can buy Dahua cameras on ali, but most of them can be cameras for the Chinese market (the signs on the packaging are in Chinese). Cameras for the Chinese market have their software changed to be English (or French, Spanish). Each attempt to upload Polish or other firmware will end in the release of the camera. At best, we'll have a Chinese interface.
He can also buy cameras that will support Polish software.
Be guided by the rules
If the camera model is not on the Polish dahua website, the seller writes not to update the camera, then 99% we will get the camera for the Chinese market without the possibility of changing the firmware, and ddns or p2p may not work.
If we have information that the camera is multilang and there is a model on the Polish or European dahua website, it will probably be a camera that we can easily update.
Once we release the camera, we will try to resuscitate it via RS-232.
At home I have a complete dahua video intercom and two cameras, including a rotary one. Everything from ali.