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NFC capabilities for wireless payments
Almost every major smartphone has near-field communications (NFC) technology, which allows users to tap their phone against a reader to pay for products of low value. Apple has yet to embrace NFC, likely due to the metal housing of the iPhone's case. In adding the feature, it would improve its in-built and under-used Passbook software with wireless payments.
A faster 64-bit A7X processor
A new processor is all but inevitable in the next iPhone. Despite the never-ending legal spat between Samsung and Apple, it's still likely that its main rival in the smartphone space will produce the next-generation chip — even if Apple is slowly attempting to move to in-house chips. Expect improvements to the M7 coprocessor, and additional 64-bit chip features.
At long last, all-day battery life?
iPhones have typically always suffered with one major problem: poor battery life. The more technology each iPhone packs in, the better the battery, but the high-resolution display, the network capabilities, and other features often offset any improvements. For business users particularly, many will want an iPhone that lasts all day without needing to be charged up. Apple will need something more than the 10 hours on 3G talk time to really wow its customers.
Image via CNET