Welcome to the forum.
You don't say if you have updated the SDS1202X-E with the latest firmware, it's only been out a couple of weeks.
http://www.siglentamerica.com/USA_website_2014/Firmware&Software/SDS1000X-E_5.1.3.13.zip
Thank you!
I actually did firmware upgrade (one released on 7/18).
Both scopes were set to one second persistence, but Siglent was somehow slow in this mode. I suspect that SoC installed in Owon is faster if it the same Sitara which we sow in the XSD3202A model. There are several Debian branches for the Sitara platform. Also, Sitara has two real-time co-processors.
You tell there are as same settings as possible. Well, even I with my wooden eyes can see this is not true. Why Owon looks in video so slow. If you see in live, this Owon is more fast with this setup, it is perhaps visual illusion. Measure it and there is truth. Both scopes have trig out.
Also this need think. Your trigger event counter tell around 4.8kHz. This is limiting factor for scope waveform update speed least with Siglent what can do acquisitions nearly 20 times faster when you use dots mode as you use also in Owon. Also when I look this video, it looks like Siglent wins wfm/s speed just hands down.
Then you can do some thing, even with this same signal and same speed setting.
Turn both scopes then on. Wait example 10 seconds. Stop scope.
Look what happen 5 second before you stop scope. Look it with owon and siglent. What you see. Show me waveform what scope was acquired around 5 or ten seconds before stop.
Then next. Turn both scopes to 1ms/div. Max memory, One channel in use.
input signal what have known 100ns wide pulses with exaqmple 10ns rise and fall times and frequency something...example 1MHz.
Do not use zoom. Just normal window.
Turn automatic measurements on and ask scope tell pulse width and rise and fall times.
Tell me Sigent and Owon result.
But if look single thing. Persistence. This Owon do "better" than Siglent or least my XDS3102A do. Better because in my version persistence decay use intensity stepping.
Then, Owon do not have fast segment acquisition mode, as it also do not have normal mode waveform history buffer.
Siglent also use full raw adc data for measurements and even more, it decimate raw data much less than owon for display, this is why Siglent intensity gradation is lot of over Owon. But you need some time to realize it after you learn how both equipments need use so that both can give best they can. Owon use highly decimated data for measurements.
Then if you look FFT. Try this with Owon.
455kHz signal AM modulated with 100Hz and 120Hz. Mod depth 20%.
Try with Owon.
Then here one example about measurements, Siglent use full memory data, not display data for measurements and also not other way decimated data.
25ns pulses, rise and fall 10ns.
Try with Owon.
Then turn Zoom on with same signal and settings, like this, 1ms/div and zoom 1ns/div
How is Owon. zoomed window signal trig rock solid or what? Or can you do this at all.
Then try 200MHz sinewave using 1mV/div. Example signal true input level 6mVp-p roughly 2.12mVrms or roughly -40dBm to 50ohm (for this Siglent need external feed thru terminator).
What you see with Owon, what you see with Siglent. (I do not have 200MHz Owon. BUt afaik Owon may force BW on and you can not even turn it off.)
Then, look Owon if you can see true adc data points in display. Or do it produce some fake points between true sample points in dots mode also. Capture some fast edges signal using some speed and memory set for 250MSa/s or 500MSa/s. Stop scope and zoom in using full screen mode, so that sample interval is least half div or better if 1 to 2 div. After then switch vectors on and off and also same with Sin(x)/x on and off in vectors (lines) mode.
After then ask Owon if they are really serious with it. But yes, it have not so bad joke what Rigol do.
Siglent do it like professional test equipment must do. Without flushing to trash can real sample points and drawing art image over ADC raw "truth".
But, Owon have done some things also well, not all bad.