Tablet manufacturers are adding mark-ups of more than 1,000 per cent for extra storage on their devices, according to an investigation by consumer champion Which?
The organisation said Google, Apple and Amazon are "fleecing" customers with "outrageous" mark-ups, with Apple reportedly charging users 80 more for the 32GB version of the iPad Air than its 16GB version, despite it costing Apple less than 6.
It also claims Google charges an extra 70 to increase the capacity of its Nexus 10 from 16GB to 32GB and Amazon charges 40 for the same storage increase on its Kindle Fire HDX 8.9.
The best thing about using a tablet is filling it with apps, songs and videos that you love. But all of this content gobbles up storage space fast.
The firm branded this profiteering as "scandalous" and said people wishing to buy a tablet for Christmas would be better off with a device that came with an SD or MicroSD slot where storage could be increased for a fraction of the cost.
Tablets that allow users to insert a memory card include the Samsung Galaxy Tab 3, Microsoft Surface RT and Sony Xperia Tablet Z, it added.
"The best thing about using a tablet is filling it with apps, songs and videos that you love. But all of this content gobbles up storage space fast, and tablets use Flash memory that's limited in size," the Which? report said.
"Unlike with PCs, tablet storage is difficult to upgrade after you've purchased your model. That's because most tablet bodies are sealed and don't let you install further hardware."
Ben Miles, from PC maker Chillblast, said 16GB of Flash memory is "mind-numbingly cheap now".
"As a general rule, for manufacturers like ourselves, Flash costs less than 40p per GB, so for companies to charge so much for an extra 16GB seems scandalous," he added.
Which? editor Richard Headland added: "With tablets in demand this Christmas, buyers will be shocked to discover what a raw deal they're getting on built-in memory."
Which? also found the actual amount of storage is not the same as advertised because operating systems and built-in apps take up space.
Apple and Google declined to comment on the Which? report.
