Gillette Fusion Detail
The Gillette Fusion razor has five blades! Actually, it has 5 + 1 blades, since it has an additional blade on the end for trimming.
It sounds crazy to have so many blades on a razor, but a couple of my friends swear by it. They say it gives a smooth, close shave and lasts much longer than lesser razors with only four or less blades. ;)