Eva I’s button is front and center, while Eva II’s button sits right on top, for easier and more intuitive access.
Wings & Fit
Eva II has shorter wings and a slightly different profile, for better all-around fit.
Size & Weight
Eva II is 10% lighter and 18% smaller (volume-wise) than Eva I.
Eva II is fully waterproof (so, totally submersible), while Eva I is water *resistant* (it can handle a lil’ splash).
Eva I and Eva II have the same three vibrating modes/levels, but Eva II’s got more rumble
A USB cable plugs right into Eva I’s body, while Eva II has a sleek wireless charging case to both charge and transport in