First off, it has to be said, that this is the Sigelei Zmax. NOT the Smok Zmax. These are two extremely different devices with the same name. The Smok Zmax is a variable voltage-only device with a numeric-only display. It is a design ripoff of the Provari and I'm certain that it is a fine device, but what I have that is shown to the left is the Zmax by Sigelei. This is the latest version that includes variable voltage and wattage, a resistance checker, an OLED display that is exceptional. And this is a telescoping unit that will accommodate anything from an 18350 battery up to an 18650 battery (as shown at left.)
I got the kit of the Sigelei Zmax so that I could get a couple of extra batteries and an extra charger to add to my collection. It is also available with just the mod-only. The cost for the kit typically ranges from about $90-$130 and the cost for the body only from about $60-$85.
My immediate overwhelming reaction to holding this unit is based on two things. The first is the solidity of it. Whereas the extension tube on the iTaste SVD feels like it's "dime thickness", the extension tube on this Sigelei Zmax feels like it is "nickel thickness". There is an assumption in product manufacturing that "lighter is better." But I've found that I really do prefer some added heft if it instills in me the belief that the product is better quality. That is exactly what I feel here. The overall weight isn't at all substantial or burdensome, but just right in balancing the tricky play between quality and heft. In the hand, this device feels better than any single device I've held (and that includes a great many that I don't own.)
The menu system on the Zmax is a one-button operation that utilizes three clicks to go into menu mode and then single clicks to get to the variable you are wanting to change. If, like me, you pretty much don't ever mess with changing anything other than the power output, this system works well and is surprisingly easy to get used to.
I really liked the three-button functionality of the iTaste SVD, but now I find myself using it and thinking just how nice and streamlined that one button design really is on the Zmax.
My one big gripe about the Sigelei Zmax is its button. I don't mind the plastic button, but the press on it is extremely (read that EXTREMELY) light. I don't have any other device with a button so easy to depress. Why does that matter? Because it is so light that if I put it in my pocket, you can guarantee that it'll fire just by being squeezed. And given the one-button menu system, turning it off is an operation that takes 30 seconds or so of triple clicking, waiting, single clicking, etc. That's a little bit of a hassle when it comes down to it. I like the stiff buttons on the Innokin iTaste SVD and MVP much more than this light button.
But with that one gripe aside, the Sigelei Zmax is my new favorite. Yeah, I know. I seemingly have a new favorite every time I get a new device, but If I were asked to choose between this Zmax and the iTaste SVD, I'd probably go in favor of the Zmax. In the end, it is the aesthetics of the way it feels in my hand that gives it the edge.