Mobile World Congress: not just foldable phones but gadgets galore

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► Try the Financial Times for 4 weeks for just £1. Start your trial now - bit.ly/2ry7Tkz The buzz around the Barcelona show has been all about foldable phones and 5G. But connected cat litter trays, 'minimal' phones and smart mirrors that analyse your saliva are also among the latest innovations on display. The FT's Daniel Garrahan reports ► Subscribe to FT.com here: bit.ly/2GakujT ► Subscribe to the Financial Times on YouTube: bit.ly/FTimeSubs For more video content from the Financial Times, visit FT.com/video Twitter twitter.com/ftvideo Facebook facebook.com/financialtimes