Hi Dough,
They're similar in design, but the Vamo V6 has some new features.
Whereas the Vamo V5 fires atomizers as low as 1.2 ohm, the Vamo V6 fires atomizers as low as 0.3 ohms. The Vamo V6 also has a maximum power of 25 watts; whereas, the Vamo V5 has a maximum power of 15 watts. The Vamo V6 also acts as a power bank, and I suggest watching the video at the bottom of the page for details on how to use that feature.
Thank you,
Brad