Rory Cellan-Jones and HTC One handset
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HTC phone changes focus of photos

Rory Cellan-Jones tries out HTC's new flagship handset and asks the firm's co-founder if it is enough to turn around its fortunes.

HTC has launched its new flagship Android smartphone.

The revamped HTC One features a bigger screen than before and louder speakers. But its most striking feature is a sensor on its back that allows the device to refocus photographs after they are taken.

The BBC's technology correspondent Rory Cellan-Jones tried out the handset and asked the firm's co-founder, Cher Wang, whether the new features were enough to turn around its fortunes.