It’s pointless to have a GPS if your battery is just going to die. Casio has provided the solution: The G-Shock GPR B-1000 is a good looking GPS sports watch with a built-in Solar Panel for backup power. You will only use that if you use up its 33-hour charge first. So now you are always good to go. The solar panel on the face will fully charge with 4 hours of direct sunlight. You can charge it at home wirelessly on its power pad. With this beauty, Casio makes sure that you have GPS when you need it.