Ideal for the more adventurous people out there, this phone is tough. It also comes with a torch as an extra safety feature. Bringing a new era to the mobile phone market is the Bluechipworld solar phone. The built-in-solar panel means it has unlimited talk and standby times and combined with being waterproof and dust proof with a rubberised, robust casing, this mobile really is a go anywhere phone, surviving some of the roughest terrains and elements. As long as there is sun there will be a charge on the phone.