The Skilhunt E3A, also a twisty, is 11mm shorter. Single mode only, unfortunately (100lumen). Comes in a few colours. It replaced the C01S on my keychain, but I still like the C01S.
Thanks darosk, the Skilhunt E3A is indeed an extremely light (< 8g) and compact little light. As you can see in my signature I have one (and offered several to relatives), whose beam I have improved as explained in https://budgetlightforum.com/t/-/62837/122
Too bad it is only single mode, not good for night-adapted vision.
When I ordered them (January 2021) the plastic stand - which you don't need - was included, now you can order the optic without it. They are so cheap (much cheaper than the shipping fee) that I suggest you order several versions at the same time (you need to send a note to the seller for this as far as I remember), so that you can compare them.
Once you have tried it, let us know what you think, thanks in advance.