
I have both, and I have to say I find myself reaching for the spinner more often than the twist. (I also have a SI X2 spinner (rebranded spinner for the most part)
- Battery Life All things being equal (assuming same MaH here) its the same in this regard.
- Ease of use
1) Spinner: Better dial (both in feel and ease of reading) eGo/ 510 connection
2) SI X2 Spinner (808d with Ego threads, with an adapter can use the same as the Vision.) Same style dial.
3) Ego Twist: Dial is difficult to read at a glance, also turns counterclockwise to raise volts... that seems backwards to me
- Feel Both the Vision and the SI X2 spinners are even here, both have a great weight. The eGo Twist seems a tad lighter. I prefer a slighter weightiness to my mods.
- Quality of Build All three have performed well, haven't had really any battery issues so far.
All that being said, it all depends on the pricing as well. I actually found my Vision Spinner for cheaper than the eGo twist, some sites have them priced differently. I you're looking for a massive increase in performance, sadly, they both "do" the same thing. Without moving to a mod like a Vamo or something you won't see/taste much of a difference.
I still like the Vision though, and highly recommend one. This of course is my opinion, and opinions are like tastes, to each their own. Whatever keeps you off the stinkies is great though!!!