The iPhone 5S is anticipated to keep the same dimensions as the iPhone 5, however there’s a slim chance that Apple might supersize its smartphone line with a 128GB option.

A German retail chain, Media Markt, has put a placeholder for a 128GB version of the iPhone 5 into its stock system, according to German Apple blog site Macerkopf.

The screenshot of the database listing doesn’t include a model number. Instead the stock description contains a generic xxxxxxxxx.

The secret 128GB iPhone 5 mention might also be meant for the forthcoming iPhone 5S, speculates Media Markt. That’d make more sense.

iPhone 128GB listing

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The ‘every two years rule’

Apple has actually stuck to a pattern of doubling the iPhone storage capacity every two years.

Currently, the iPhone 5 is offered in 16GB, 32GB, and 64GB. The same storage sizes were available for theiPhone 4S.

When the business introduced the iPhone 4 and iPhone 3GS, the smartphones topped out at 32GB.

The iPhone 3G and the original iPhone hit a memory ceiling at 16GB if you go all the means back to the start.

Continuing with this pattern, that’d indicate the iPhone 5S and iPhone 6 would’ve a maximum ability of 128GB.

That couldn’t occur as soon as possible, as Apple waited until earlier this year to broaden the iPad 4 line with a 128GB variation. It can take place mid-cycle.

We are likely to get our first chance at discovering whether Apple stays real to history and presents a 128GB iPhone 5S on September 10.