Carbon Mod Works makes an expensive clone of the VaporFlask. This
CMW i60 60W looks to be a cross between the iStick 50W and VaporFlask shapes, with a much more reasonable price. From the pics and description on the SmokeSmart web site (the only retail web vendor that sells it right now, apparently), the i60 is clearly designed as direct competition to the iStick 50. Same batteries---two dedicated 18650 Lipos providing 4400mAh and USB-charging, same low resistance capability, same display layout, but different chip. The product blurb says
"better chipset than the eLeaf iStick 50W!" Maybe, but we don't know the identity or source of the chips in either device. The iStick 50W has a power range of 5-50 watts and uses PWM to approximate a kind of faux step-down. The i60 is listed at 7-60 watts, with no other specs, so it almost certainly doesn't buck either.
I'd hope that the CMW i60 has a spring-loaded floating positive pin and durable threads on the 510 connection, but the product description says nothing about that.
Another contender in that price/features/power range is the
Smowell DPV-65, now on pre-order at
fasttech and
gearbest. The Smowell's triangular shape is a bit more compact than either the iStick 50 or CMW i60. The Smowell uses two user-supplied 18650 IMRs (as opposed to the dedicated dual Lipos in the others), and probably has the same chip as in the Smok XPRO 65.
Smowell DPV-65