Citing figures obtained through a Freedom of Information request, The Sun reported that the organisation handed out about 10,000 pounds worth of iPhones a month.
BBC said the gadgets were bought for "testing purposes... to see how they can help us".
It would not reveal the total cost as the expense is contained within a 10-year contract with Siemens.
Charlotte Linacre, of pressure group The TaxPayers' Alliance, urged the BBC to buy "cheaper gadgets" to ensure "taxpayers aren't picking up the tab for over-indulgence".
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