Mobile phone stun guns are a way to handle self-defense a little differently. Are they smaller and lighter in weight than usual stun guns? Will they be less expensive, and are they powerful enough? In my opinion, I might rather have a smaller and more compact version, hence the mobile phone stun gun appears better to me. However, you do have to be sure a smaller stun gun is going to work effectively enough. Check out the technical specs, and recognize they have even smaller versions, also, such as the keychain stun guns. Do you think a keychain stun gun will halt a person? I would personally think that may be a little too small.