Fnirsi 2C53P vs Owon HDS272s Single trigger

Comparison of single trigger and memory.
2.5Vpp with a 1KHz square signal.
I compiled it from four videos.
In the first part, you can see that Fnirsi is frozen. It couldn't be turned off, I had to take it apart and disconnect the battery...
Probably because of the "single trigger".
This was the first time.
the second time it froze at single trigger and 10S/Div settings, I think it may have the same disease as the DPOX180H...
For the second part, I first gave it a 1kHz square signal, then 100kHz.
You can tell the difference between Fnirsi and Owon.
On the Fnirsi, you cannot enlarge, spread, or compress the signal in the single trigger mode.
I have not yet found the amount of memory that Fnirsi wrote in its specification...
In the fourth part, I gave it a continuous signal, before the trigger point you can see the distortion of the signal...
Tigger doesn't write tenses, you can only chat.
The automatic measurement is stupid.
the single trigger does not work properly.
The signal is distorted in certain situations.
after a single trigger, you cannot move or enlarge the signal...
I almost forgot, the single trigger is only over 2us, i.e. 2us, 5us, etc. "it works". Fnirsi knows about it and they replied that it is like that.
I just couldn't find it anywhere in their description...