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New Microsoft Surface rumours suggest price, battery life

Microsoft has introduced its Windows 8-based Surface tablet, but it left many unanswered questions. When can we get it? How much will it cost? How about that battery life?

Microsoft has not made any official announcements about availability and pricing, but that hasn't stopped the rumour mill. Several reports today are speculating about the Surface's price, its connectivity options and its battery life.

Up first, Bloomberg reported today that Surface will initially only boast Wi-Fi connectivity.

Citing people familiar with the matter, Bloomberg said the Surface will include Wi-Fi, short-range radio but no cellular connections. By comparison, the Apple iPad debuted earlier this year with 4G LTE connectivity.

Digitimes, meanwhile, cited "sources from notebook players" in a report about possible Surface pricing. According to the newspaper, which has a spotty track record when it comes to tech rumours, the Surface will price the Pro-based Surface above $799 (£500), while the Windows RT-based model will be more than $599 (£380).

The Wi-Fi versions of the iPad are priced at $499 (£399) for the 16GB model, £479 for the 32GB and £559 for the 64GB.

But will that lack of a cellular connection help preserve battery life? Not according to a Thursday report from Computerworld. The publication looked at the watt-hour (Wh) capacity of the Surface batteries and compared them to devices with similar batteries.

Using that formula, Computerworld estimated that the Windows RT Surface would have a 7.5-hour battery life, about 25 per cent less than the iPad's 10 hours. The Surface Pro, meanwhile, would only have a six-hour battery life, less than most ultrabooks.