Solarin smartphone
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Leonardo DiCaprio lurks at £11,400 Solarin phone launch

31 May 2016 Last updated at 22:04 BST

Hollywood stars Leonardo DiCaprio and Tom Hardy turned up for the London launch of a new smartphone.

Sirin Labs says its Solarin handset offers such celebrities military-grade security - but its £11,400 price tag may deter others.

BBC Click's Lara Lewington reports.