Is was looking at the Zmax V2. What changes did the make with the Vmax V2 vs V1? I like the idea of having the same wattage more than the same voltage. I don't know how many times I've killed carto's and atty's switching and not adjusting the voltage. I'm sure variable wattage would undoubtedly save me some money.
What's the difference in length between these two devices?
Hi C Heise. The Zmax and Vmax are two different devices. The Vmax is a variable voltage mod. The Zmax has variable voltage and variable wattage. The Zmax 1 used an average to measure volts/watts - but that isn't accurate. The Zmax 2 uses RMS (root mean square) and is very accurate.
So with a Zmax you can use variable voltage, or variable wattage.
pbusardo review is here - a bit long but very thorough:
A PBusardo Review - Smoktech Z-Max V2 - YouTube
The Vamo has the same features and accuracy as the Zmax 2 - accurate variable voltage and variable wattage. It's a cheaper mod - $40 from Health Cabin (use DHL as shipping method if you get one from there) and I think about $50 from some US vendors. Health cabin call it the eGo Variable Volt/Watt APV V2.
http://www.healthcabin.net/index.php?main_page=product_info&cPath=1132&products_id=8190
One thing I like about the Vamo is that you can use an 18650 battery or an 18350 in it - so you get two size mods in one.
So briefly:
Vmax - variable voltage
Zmax 1 - variable voltage and variable wattage - not accurate to set values
Zmax 2- accurate variable voltage and variable wattage
Vamo - accurate variable voltage and variable wattage