Energizer is getting some competition in the field of rugged phones with large batteries. And it comes from Gigaset - a former division of Siemens that is best known today for its DECT phones. Meet the Gigaset GX290. It boasts a 6,200mAh battery with 15W fast charging over USB-C. A full charge takes three hours. The phone is water resistant (IP68) as well as shock resistant, but it doesn't have an official a MIL-STD rating. The 6.1" screen is optimized for outdoor use and is guarded by Gorilla Glass 3. It promises 520nits of brightness and a contrast ratio of 1,000:1. The resolution of...