The waterproof Kodak PlaySport Zx3 is a fine device for capturing a day at the beach, in the pool or out among the elements. It’s waterproof as advertised and feels much more rugged and solid than other pocket camcorders. The PlaySport also stands out with impressive HD video for its size, an effective electronic image stabilization feature and a low MSRP of $150.
However, I think the Zi8 is better as an all-around device, owing mainly to the external mic jack. Still, with their low prices, I can find room in my pocket for both the Zi8 and PlaySport Zx3.