
Its success was down to a unique convergence of technologies. For the first time touchscreens, batteries, data networks, compact computer chips, micro-sensors and more, were cheap, reliable and small enough to make a $600 (£460) smartphone possible.

Its success was down to a unique convergence of technologies. For the first time touchscreens, batteries, data networks, compact computer chips, micro-sensors and more, were cheap, reliable and small enough to make a $600 (£460) smartphone possible.
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