This is a review on Vmax , based on my personal opinions , please do not flame !
Unboxing

Size comparison

3 Digit Display

LED Display

Comparison with Provari

Comparisons with Provari
Size compared to provari(with 18650 extension cap) is almost identical
Provari is slightly thicker in width
Provari is slightly heavier than Vmax
Threading wise for Vmax is ok, but not very smooth
End Cap design is different (duh)
Slightly longer grip grooves on Vmax
Vmax on the whole feels pretty solid
Vmax Well of the connection end is slightly deeper , Smoktech said they giving me a new version that supposedly able to fit Ego Type Atomizer/Cartomizers without extenders.. BUT NO. Doesnt fit.
3 LED Digit Display is together with firing button compared to Provari 2 Digit Display is opposite the firing button
Button is not perfectly seated and you can hear clicky sound when you shake it.
Feels solid.
Has Vent Hole
Uses 2 x 18350 battery
More details:
Vmax doesnt come with any manual , and for those who havent tried Provari before, the menu functions looks like some cryptic codes. (Voltage is shown as u, Resistance shown as o , etc)
Vmax does not come with any batteries, chargers.
Putting in the battery is a little troublesome as its a tight fit.
Brass painted with silver/black color.
Menu function similar to Provari;
On Function 5, you get to rotate between Output Voltage (d0), Atomizer/Cartomizer Resistance (dA) and Battery Voltage (du), once set, everytime you press the firing button, you will see the display shown as you choose
Vmax will operate from full charge (7.4-7.9V) till about 6V , then it will show LO (Low battery) and it will stop working, no warning given earlier.
Function 6, LED on/off : On LED off, the LED Display will still turn on, its only the firing button that turns off.
Technical Stuff (IMPORTANT)
Vmax packs ALOT of power, with a 5amp switch inside)
Will show error codes similar to Provari
Will not work with atomizers/cartomizers that is 0.5-1.3ohm (Shows a F1 Error)
Will not work with atomizers/cartomizers that is below 0.5ohm (shows a F2 Error)
Voltage output is NOT like Provari/Lavatube. On a 3ohm Stardust, 3V on Vmax is giving a MUCH hotter vape and near burning compared to a 3ohm Stardust, 4.2V on Provari/Lavatube (clean taste)
On the note above, The voltage output reads exactly the same (comapred to Provari/Lavatube) on a voltage meter, but performs nothing like it. Apparently the tuning of the voltage setting is flawed. The Voltage max under load is at 8V++ and cycles thru Voltage min is about -1.5V , The voltage average is 2.8-3V, but they didnt taken to account how high the peak of the voltage is heating up the atty/carto.
You will risk breaking the atomizer/cartomizer heating coil on higher voltage
If you remove the battery, the Voltage Output will reset to 5V, do take note or risk spoiling your atty/carto.
Pros:
Solid Build
Nice Clicky Button
Adjustability of Voltage
Short Circuit Protection like Provari/LT
Hold Voltage pretty well throughout the lifespan of battery like Provari/LT
Cons:
Stacked Battery
Hits Hard , doesnt perform like LT/Provari
No Manual
LED on/off switch is redundant
No Low Battery Warning
Doesnt memorize settings when you remove battery
On the bottomline, Vmax is a pretty sturdy built, but if it hits so hard all the time, adjusting voltage is unecessary as you are running mostly on 3V settings all the time , which is a major flaw. VV devices are made for you to adjust the voltage output setting to hit your sweet spot on different ohms carto/attys, so it seems a little silly when you cant even go higher voltage on Vmax without risking breaking your atty/carto or getting burnt taste.
Unboxing

Size comparison

3 Digit Display

LED Display

Comparison with Provari

Comparisons with Provari
Size compared to provari(with 18650 extension cap) is almost identical
Provari is slightly thicker in width
Provari is slightly heavier than Vmax
Threading wise for Vmax is ok, but not very smooth
End Cap design is different (duh)
Slightly longer grip grooves on Vmax
Vmax on the whole feels pretty solid
Vmax Well of the connection end is slightly deeper , Smoktech said they giving me a new version that supposedly able to fit Ego Type Atomizer/Cartomizers without extenders.. BUT NO. Doesnt fit.
3 LED Digit Display is together with firing button compared to Provari 2 Digit Display is opposite the firing button
Button is not perfectly seated and you can hear clicky sound when you shake it.
Feels solid.
Has Vent Hole
Uses 2 x 18350 battery
More details:
Vmax doesnt come with any manual , and for those who havent tried Provari before, the menu functions looks like some cryptic codes. (Voltage is shown as u, Resistance shown as o , etc)
Vmax does not come with any batteries, chargers.
Putting in the battery is a little troublesome as its a tight fit.
Brass painted with silver/black color.
Menu function similar to Provari;
On Function 5, you get to rotate between Output Voltage (d0), Atomizer/Cartomizer Resistance (dA) and Battery Voltage (du), once set, everytime you press the firing button, you will see the display shown as you choose
Vmax will operate from full charge (7.4-7.9V) till about 6V , then it will show LO (Low battery) and it will stop working, no warning given earlier.
Function 6, LED on/off : On LED off, the LED Display will still turn on, its only the firing button that turns off.
Technical Stuff (IMPORTANT)
Vmax packs ALOT of power, with a 5amp switch inside)
Will show error codes similar to Provari
Will not work with atomizers/cartomizers that is 0.5-1.3ohm (Shows a F1 Error)
Will not work with atomizers/cartomizers that is below 0.5ohm (shows a F2 Error)
Voltage output is NOT like Provari/Lavatube. On a 3ohm Stardust, 3V on Vmax is giving a MUCH hotter vape and near burning compared to a 3ohm Stardust, 4.2V on Provari/Lavatube (clean taste)
On the note above, The voltage output reads exactly the same (comapred to Provari/Lavatube) on a voltage meter, but performs nothing like it. Apparently the tuning of the voltage setting is flawed. The Voltage max under load is at 8V++ and cycles thru Voltage min is about -1.5V , The voltage average is 2.8-3V, but they didnt taken to account how high the peak of the voltage is heating up the atty/carto.
You will risk breaking the atomizer/cartomizer heating coil on higher voltage
If you remove the battery, the Voltage Output will reset to 5V, do take note or risk spoiling your atty/carto.
Pros:
Solid Build
Nice Clicky Button
Adjustability of Voltage
Short Circuit Protection like Provari/LT
Hold Voltage pretty well throughout the lifespan of battery like Provari/LT
Cons:
Stacked Battery
Hits Hard , doesnt perform like LT/Provari
No Manual
LED on/off switch is redundant
No Low Battery Warning
Doesnt memorize settings when you remove battery
On the bottomline, Vmax is a pretty sturdy built, but if it hits so hard all the time, adjusting voltage is unecessary as you are running mostly on 3V settings all the time , which is a major flaw. VV devices are made for you to adjust the voltage output setting to hit your sweet spot on different ohms carto/attys, so it seems a little silly when you cant even go higher voltage on Vmax without risking breaking your atty/carto or getting burnt taste.

yet so many ppl out there claiming vMax is superb for LR DC 

