The biggest difference between regular razors and disposable razors is that the regular razor has a detachable blade that is replaced and the handle is reusable. Disposable razor blades last three to ten shaves before they need to be disposed of. Disposable razors are good for traveling, and some people choose to use them all the time because they enjoy their convenience. A regular razor allows you to use different types of blades to personalize your shaving experience. It is also a benefit to the environment because less is thrown away after it is used.