The best Case for iPhone 4 I have seen is the Mophie Juice Pack Air Case and Rechargeable Battery. While the fit and finish of this Best Case for iPhone 4 is just superb it also manages to hide a rechargeable smart battery concealed inside it. This adds up to 6 hours of talk time (up to 12 on 2G) and 5 hours of Web browsing on 3G (up to 9 on Wi-Fi) to your iPhone. Still Juice Pack and the iphone together just seem like one unit unlike some other battery extenders.
Usually user have their Mophie on the phone and once it hits about 20-30% battery life they simply flip the switch on the bottom left of the case and the iPhone begins to charge instantly. The case has enough battery power to get the phone back to the 80-100% charge range, depending on where you are starting from. This is rather cool and who hasn’t tried running low at times where the phone is really needed but there are hours until a regular charging is possible. Another great use case is for iPhone owners where the battery is getting old and where it can’t charge to a sufficient level any more. The Mophie Juice Pack Air Case can really help you in this case.
Most cases do not complement the beautiful form factor of the iPhone 4 – one of the key reasons many have for buying the iPhone. Typically cases feel cheap and built with inferior materials compared to those used in the iPhone. Mophie Juice Pack Air best Case for iPhone 4 will not follow suit, from the moment you remove this case from the box you will notice the quality of the materials. Furthermore, once this case encapsulates your iPhone you will notice the velvety feel of the case backing and the welcomed added weight of the battery. I think this is the best case for iPhone 4 ever! Of cause there many other cool iPhone cases available.