Question about Ugreen Universal mount

I have owned this mount for almost 2 years. It is in daily use with an 11' tablet. I have it attached to my bed to watch series at night. It still holds without any problems. It doesn't sink or move on its own. Bear in mind that the arm cannot be turned in all directions. Greetings

I am sceptical about the stability. The mount is reasonably stable except for a weak point at the base of the swivel arm. This "pin" quickly bent on our mobile phone when we tried to lock the swivel arm. The sheet metal was too thin there.
I am sceptical as to whether the iPad Pro will be stable due to its weight.
Summary: for mobile phones yes, for iPad Pro no!

The calmer (for screwing to a window sill or table top, for example) of the universal holder that I bought has an opening of 6.5 cm. If you tighten the clamping screw firmly, possibly with pliers, the base for the universal holder holds quite well.
The clamp (for holding a smartphone or tablet) of this universal holder has an opening of 12cm to 17cm. So if the height of your iPad is less than 17cm, this clamp can hold your iPad in landscape format.
This universal holder has a screw in each of the two joints that can be tightened. Again, you can use pliers to tighten them if necessary, but the screw heads are made of plastic and will eventually break. If your iPad is not too heavy, this universal holder can support it when stretched horizontally, but the heavier your iPad is, the more likely it is that the universal holder will give way.

It holds the weight of an iPad without a problem

Basically I am very satisfied although the plug-in part could be a bit thicker

My 10.9 inch iPad holds very well. However, the clamp is very tight. A 12.9 inch iPad will not fit in there

I've got a 10' Android tablet hooked up to it and it's holding up well.