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(Pocket-lint) - Apple has announced not only new colours for its new iPhone 7 models, but a new finish. Moving on from the standard matte anodised finish that Apple has used from the iPhone 6, the Jet Black model takes on something of a premium position.

The Jet Black iPhone 7 uses a 9-step anodisation and polish process to result in a high gloss shine, which reminds us of the ceramic finish of the OnePlus X. That might be no coincidence as there's a white ceramic version of the Apple Watch Series 2 as well. 

However, if you're lusting after this new model of the iPhone 7 or 7 Plus, then it's worth taking heed of the footnotes that Apple has appended to its tech specs, where it says: 

"The high-gloss finish of the jet black iPhone 7 is achieved through a precision nine-step anodization and polishing process. Its surface is equally as hard as other anodized Apple products; however, its high shine may show fine micro-abrasions with use. If you are concerned about this, we suggest you use one of the many cases available to protect your iPhone." 

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So basically, unless you're only ever going to slip your iPhone 7 Jet Black into the silk-lined pocket of your suit, you might want to consider getting a case for it to avoid those little scratches that will take the shine off your brand new iPhone. 

The iPhone 7 and iPhone 7 Plus will be available to pre-order from 9 September, hitting stores on 16 September. 

The new models offer more power, better colour display, a move to Lightning headphones, stereo speakers, a new home button and best of all, IP67 water protection.

Writing by Chris Hall.