Thank you for bringing this to my attention, I had overlooked it.
Compared to the similarly priced Siglent, the accuracy of the DM858 is ridiculous.
I wouldn't be affected by the switch-on time, because it needs to warm up a bit for accurate measurement anyway.
If I want to do a quick less accurate measurement, I use any Owon DMM I have or my Aneng A3009.
I like the flat design with a large display.
I would not have used the round numpad, I prefer the touch screen.
But now I'm a little unsure if it's worth it.
I've already found three things I don't like about it.
Why is the color white for both?
Its inaccuracy in RMS measurement...
Most likely, it could not be used as I would like for logging.