Samsung has unveiled its next-generation flagship smartphone, the Galaxy S5, with hopes it can offset slowing growth at the top end of the smartphone market and threaten Apple. The FT's personal tech correspondent Paul Taylor gives his verdict.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
