Originally posted by undesputable
i saw a remington that supposebly has titatium blades that "slef sharpen".....is $120 but if youll never have to change the blades is worth it, it will pay for itself.
I got this for my birthday 2 months ago, and have been extremely impressed with it. It's called the Remington Titanium SmartSystem, and retails for around 130 at Target. The only thing you need to worry about changing is the cleaning fluid (whenever the 'fluid' light comes on the base unit, and it tells you on the handle how many minutes left your razor has left before it needs recharging. If you've got the money, or the inclination, it's a good buy - though it will get cheaper in not too long I'm sure. Whatever you do, go with a electric razor instead of the normal ones.
To answer your question, there's really no difference between 4 blades and 3 blades - give it another few months and they'll have a 5-blade shaver... It's all marketing.