fourthrok said:
If you'd like something a bit different from the ubiquitous and pervasive "tube style" VV device, look into the VV Gripper Variable Volt Gripper (also at other vendors). Has VV from 3v to 6v, PCB, ohm checker and battery level meter. Easy button menu. I'll attest that it vapes VERY well. I love mine. Only slight drawback is the battery door. You can't play Tarzan with it. It needs a bit more of a gentle touch, but with care it's fine and will hold up. It's just subject to user abuse. Another one in a similar mode is the Ovale V8 Segelei V8 Incremental VV Body - Black Rubberized I don't have one of those, but am thinking about getting one. Same basic idea as the VV Gripper.
Of course, you may WANT a tube mod. I have several and like them, but have to say that the form factor of the Gripper style PV is very comfortable to hold, a bit stealthier, and just a nice change from the same ol' same ol'.
The three control buttons (power on/off, voltage up, voltage down) on my 7 week old Smoktech V.V. Gripper just fell into the body yesterday, rendering it useless. It's just inside the 60 day Mad Vapes warranty on it, so I completed a customer service ticket and I'll see if it will be exchanged without any hassle on their part.
Although the top connector has been slightly wobbly from the start, it has gotten more noticeable in the short time that I have used the device with smaller-sized IBTanked cartotanks. It hits 0.5-1.0 volts higher than set compared to my Provari, but I compensate for this. I've not had issues with the flimsey battery door, but then I've been extra careful when replacing batteries. I've been very happy about the performance and battery time of the AW 18650 imr 2000 mah nipple top batteries. The LED readout is nice and legible. I like the comfortable, light-weight form factor for out-and-about use.
After my above experience, I'm hesitant to recommend this device because of its durability issues. Just know before ordering one of its many weaknesses (there are many, but many positives, too). I see the price has come down for this to $40, cheaper than the $50 that I originally paid.
An alternative might be the Ovale Segelei V8 Incremental V.V. Like Fourthrok stated, it has the same form factor and is only $30. It uses two 18350 batteries (not included). Haven't found much info on this device yet.
Segelei V8 Incremental VV Body - Black Rubberized