• iPhone 7

iPhone 7 (Photo : Twitter)

Apple's iPhone 7 hit the retail market on September 16, Friday giving tech teams the chance to run durability and waterproofing tests by scratching it, trying to bend it, dunking it in deep water, and dropping it from a helicopter. The new iPhone 7 device is IP67 certified for water and dust, while the Samsung Galaxy S7 has IP68 certification. Some YouTube videos show that the new Apple smartphone performed very well in stress tests for daily use and extreme situations.   

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One YouTube channel ran scratch and bend resistance tests. The team at JerryRigEverything showed that the back of the iPhone 7, screen, camera lens, and home button were scratch-resistant to coins and keys.

However, a razor blade was able to scratch the handset, according to The Verge. Apple reported its camera and home button are coated with sapphire crystal, which is the world's second-hardest material after diamonds.

Sapphire is usually scratch-resistant up to nine on the hardness test Mohs Scale. The home button and camera of the Apple product scratched below that level.

In addition, the YouTube channel found that the iPhone 7 did not bend when pressure was wielded on it. It did unstick the water-resistant glue so it is better to avoid sitting on the gadget.

JerryRigEverything also put fire to the screen but it was able to recover.       

EverythingApplePro also posted a YouTube video that features a water-resistance test to see how deep the handset could be dunked before it did not function.   

The iPhone 7 and iPhone 7 Plus are both IP67-certified for resistance to dust, water, and slashes. This means they can survive being put in 1 meter of water (3.3 feet) for up to half an hour.     

In the video from Google's video-sharing site both the iPhone 7 and Galaxy S7 are dropped in 35 feet (10.7 meters) of water for 5 minutes. After the units are pulled out the Galaxy S7 does not power on and the camera flash keeps going off. The iPhone's display has some water damage and the home button is very sensitive, but the touch screen still works well, according to 9 to 5 Mac.    

TabTimes also did a drop test on the Apple smartphone by letting it fall from over seven feet (2.1 meters). It caused some scratches but the touch screen did not crack.

In another YouTube video Callux drops the Apple device from a helicopter. After the long fall the iPhone 7 suffers a cracked screen and other visual damage but is still functional.                                       

Here's the iPhone 7 dropped from a helicopter: