LG Optimus GJ review: Wild child

Waterproof smartphones have become a growing trend this year, and it is slowly turning into a feature that is not so much a bonus as it is a requirement. Enter LG's Optimus GJ. The device is IPX7-certified to withstand submersion of up to one meter for 30 minutes, complete with a removable back panel and a robust 1.5GHz quad-core Krait CPU.