SquareTrade, which sells warranties for smartphones, tablets, laptops, and other gadgets, has pitted Apple's new iPhone 5S and iPhone 5C against rivals in a test to see how easily they can be damaged.
The torture test includes a drop from 5 feet and a 10-second period underwater.
In SquareTrade's testing, the new iPhones came out slightly behind last year's iPhone 5 and the Moto X from Motorola. The Samsung Galaxy S4 was determined to be the least durable among the five smartphones.
SquareTrade also bases its evaluation on several other factors, including construction materials, weight, size, ease-of-grip and screen placement.
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The warranty company uses a scale of 1 to 10, with a higher number reflecting greater risk of a device breaking. All five smartphones fall into medium risk of breakage, but their weaknesses vary.
4.0 Motorola Moto X - Suffered only a slight dent.5.0 iPhone 5 - Determined in a previous test.5.5 iPhone 5S - High risk of sliding off a surface.6.0 iPhone 5C - Suffered more drop damage than the iPhone 5S.7.0 Samsung Galaxy S4 - Rendered non-functioning.