There is no doubt that using a clay bar on your vehicles paint is going make it look better. It does this by removing the buildup from the clear coat that standrd washing cannot. Once this contamination is removed your waxes, sealants and polishes are going to make you vehicle look even better. If you have ever used a clay bar before it can be a great tool but if you ever drop it or get and kind of dirt on it you know it has to be thrown away. If it is not thrown away it will scratch and swirl your paint, that is where the Nanoskin Auto Scrub Wash Mitt differs from the bar. If you drop the Nanoskin you simply rinse it off and you can continue to use the mitt. Since this mitt uses a rubber polymer instead of clay it will remove contamination from the surface but will not absorb it like a bar does. With this mitt you will be able to clean up to 50 vehicles. That is about $1 a wash to keep your vehicle looking its best.
The only difference between the towel and the mitt is with the mitt you can put your hand inside of it. The materials used to make them are the same and they work the same.
There are two different grades of the mitt depending on the level of contamination you need to remove.
Fine Grade is best use to maintain the vehicles paint. If you have a relatively new car and it hasn't been exposed to overly harsh conditions the fine grade mitt is what you need.
Medium Grade is when you car or truck has heavy pollutants on it. Did you drive in some road construction or park under a tree and get sap on your car? If so after you wash it, the medium grade mitt will really get your vehicle looking its best.