The range was unveiled by Haier at Mobile World Congress in Barcelona . It includes bands that keep tabs on children , elderly relatives and pets . Chinese are controlled via an app where a user can track its every move . The Wearables firm 's child and senior bands have GPS technology built-in . A pet version has the same sensors built into a collar to prevent lost dogs . All are waterproof and fitted with sensors that feed location to the app . Prices and release dates have not yet been announced .
The range was unveiled by Haier at Mobile World Congress in Barcelona . It includes bands that keep tabs on children , elderly relatives and pets . Wearables are controlled via an app where a user can track its every move . The Chinese firm 's child and senior bands have GPS technology built-in . A pet version has the same sensors built into a collar to prevent lost dogs . All are waterproof and fitted with sensors that feed location to the app . Prices and release dates have not yet been announced .