InvisibleSHIELD The kit comes with 4 precision cut film pieces, a spray, and a cleaner. The instructions are simple. Spray your hands to prevent fingerprints, carefully peel off a section of the film and spray it down. Carefully place the iPhone 4 and cleaner air bubbles. Simple right? Not exactly.

If you have not noticed, the iPhone 4 has curved edges. The film piece that goes over the screen was a bread, but everything else requires skill, patience, and most importantly fine. The ZAGG has a video tutorial on their site to help first time Shield installers, needless to say the person in the video was done before. Fortunately spraying in the film before assembling parts gives some breathing space to make mistakes. Promptly and properly, glass cleaner, glass cleaner, glass cleaner. I have found for hard corners with a hairdryer set of the lowest and coldest really helps establish the strength of the film to bend to his will.

Once the installation is finished, I was pleasantly surprised. My iPhone 4 did not appear that there was something in it, unless they looked very close, but then again do not go around with my vision permanently fixed on macro. The film is totally clear, like glass. It is also very resistant to fingerprints, but the best part is that it seems immune to scratches. WIN!

What we liked:

Of course, like glass film.
Precision cut pieces fit perfectly iPhone 4 and iPhone  3G.
Super durable. They have not been able to scratch yet.

Affordable alternatives to the iPhone 4  cases and covers.What could be improved:

The installation is a bit difficult.
Tiny gaps can occur if the installation is not perfect as a result of dust particles in the aggregate.
It does not protect the iPhone 4 falls. You need a case for that.

If you are looking for a movie instead of protective cases and covers, go for the iphone 4 case invisibleSHIELD . The company uses the same technology and makes protective films for iPods and laptops too. I’ve had in the mines for nearly three weeks and gets its share of challenges that were thrown in and out of a bag. So far so good. My iPhone 4 still looks pristine within iPhone 4 cases.