Perhaps the best selling point for the Zagg Invisishield has been their company videos that show the Invisishield going through many grueling tests; with the electronic items that it covers coming out completely fine. Some tests that have been run:
- Application of the Invisishield to a iPhone 3G vs. plain unprotected iPhone 3G. Testers dig and attempt to scratch the iPhone with a car key. Zagg shield device seems unharmed while plain iPhone is scratched badly.
This result was very accurate! When testing, I placed a piece of invisishield on my old LG EnV in case it were to somehow fail; took my car keys out my pocket and dug into the phone (probably harder then Zagg did). Removed the Invisishield and there was not a scratch in sight.
- Photos showing a ballpoint pen being jabbed through the Invisishield (not installed on an electric device) not being able to penetrate.
I tried this also. Took a Bic pen and a piece of shield and poked away. This result was accurate also. The shield did give a lot of resistance, much more then I expected. However, the shield can easily be pierced. I was able to penetrate she shield using only about 40% of my normal strength. But still, it's not like someone is going to be sitting there violently stabbing at an electronic device.
- Zagg shows a bowling ball being dropped on the shield (not installed on any device) from a significant distance. Invisishield holds up, bowling ball does not break through.
- Zagg shows Invisishield (not installed on any device) at a gym with over 700 pounds of weight plates stacked on top of it. Invisishield holds up, weight plates do not break through.
I did not get a chance to give these last two a try as I did not ever intend on 700lbs being stacked on top of any electronic device, nor dropping bowling balls on top of them.