Hi , im a cctv seller for 6 years in the market already . You can just go ahead with ezviz, tapo or xiaomi for a peace of mind .

If you are looking for brands other than the above , avoid brands with apps like V360 , V380 . These are product from low cost manufacturers.

Means their factory priorities on cheapest material and will add alot of fancy functions to attract consumer . Cause average consumer dont understand functions are just codings . Hence low grade chipset + fancy coding = disaster , low life span , frequent errors .

If you are t20 , go for ezviz , m40 go for tapo , b40 go for xiaomi .