Same chip. You can get both in stainless steel (my recommendation), but the SVD telescopes, while the Vamo uses two tubes. This means they can both do 18650 and 18350 batts, but the SVD can also do 18490/500 batts. Otherwise, simple preference. They both have the same connection threading, the same number of buttons, the SVD is slightly longer, the Vamo has a slightly better button layout (imho), the display is OLED on both, but the SVD is a lefty, while the Vamo is a righty/lefty (heads up display). The SVD display is raised, the Vamo flush. Vamo has a smaller display, the SVD larger and brighter. I would give a slight edge to the SVD, but I like the look of the stainless Vamo V3 slightly better (You cannot tell by the pictures). Weight is about the same, as is heft and quality feel and appearance. The Vamo has a removeable drip well, making cleaning easier. So, it comes down to a subjective decision. Really, too close to call. The telescope is nice, for battery flexibility, the Vamo has a slightly better aerodynamic shape. I like the V3 a bit better personally. Almost a perfect APV. My two cents.