The SDS5000X was the first touchscreen scope from siglent, who knows how long it will be supported.
Currently it is still the "biggest" scope from the "X" series, because of the 5GSa/s and the most memory.
Unfortunately, there is no crystal ball that can predict whether the SDS3000X HD will be available on the western market.
If that were certain, I would first buy the inexpensive SDS2104X and wait for the 3000X HD.
This would offer 12 bit, 400Mpts maximum memory and still 4GSa/s and also up to 1Ghz bandwidth.
I would add to the points mentioned by tautech compared to the SDS2104X:
- Average and Eres implemented on the hardware side.
What I consider a big advantage, you do not "sacrifice" a math channel for it ( and they are very scarce with 2 channels (in both models).
But there would be another alternative, if you don't need more than 500Mhz.
The model which I have, a SDS2104X HD.
12 bit, 500Mhz max, 200Mpts, Eres and Average also on the hardware side, will soon have 4 math channels, has digital filters as math function, looks fancier....
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/xwink.gif.pagespeed.ic.cldandycH0.png)
The 2104X HD costs about the same as the 5034X.
I was faced with a choice last year when the 2104X HD came out and decided to go with the newer 12 bit scope.
Before that I had the SDS2104X, which I still think is the best scope in the price range and beyond.