Sharpening a knife without a whetstone

Q. Hey Gear Guy, which devices (other than a traditional whetstone) can I use to sharpen my knife? How well do they work?
— Dull Tyler, Libertyville, Ill.

A. There are many types of sharpeners. To help you wade through it all, I contacted a friend at Gerber Legendary Blades. They make some of the best knives and know more than a little about sharpening blades. Here are the tree main types of sharpeners:

Diamond-coated rod sharpeners (work with fine or serrated blades). This one is most similar to a whetstone.

Pros: lower cost.

Cons: takes more time, tough to maintain the correct angle while sharpening.

Ceramic pocket sharpeners (work only with fine-edge blades).

Pros: lightweight, easy to carry, low cost, quick and easy to use

Cons: will create just an average edge and cannot sharpen serrated blades

Diamond fingers sharpeners (work with fine or serrated blades).

Pros: quick, easy to use, can sharpen a variety of angles and create sharper edge

Cons: more expensive