Is there really such a significant difference between these two phones that we should toss our iPhone 5 and dig into our wallets to pay extra for the iPhone 5S?

It depends on who you talk to, but here are some key differences to help you make that decision.

The iPhone 5S by and large looks relatively the same as the old iPhone in terms of structure. Yes, there are new colors available, as well as a new metallic ring around the home button for the new fingerprint sensor, but the phone still remains the same size and shape.

But just like we shouldn't judge a book by its cover, we're not about to judge an iPhone by its casing. The more important differences lie within the phone as Apple continues its quest to improve the iPhone and keep Samsung from cutting into its profits.

First of all, the new phone has an improved A7 chip that will speed up the phone in comparison to the older iPhone 5. Apple also boosted the battery life for the phone and users will now have 10 hours of LTE and Wi-Fi browsing, 40 hours of music and 250 hours of standby time. On top of all of this, the phone is getting an improved camera with more megapixels and a special ability to detect white balance when taking photos.

Another big difference with this phone is improved security. The fingerprint sensor eliminates the ability to gain access to the phone with a 4-digit pin number, thus limiting the amount of people who will actually be able to gain access in the phone.

But all things considered, it is difficult to measure whether this phone is worth not only the initial cost but also any additional costs required to break a contract. The iPhone 5 -- and the 4S for that matter -- are really not so different that it is imperative to make the jump so soon. Remember, many iPhone users just got the iPhone 5 a few months ago.