In May 2011 Garmin refreshed the eTrex product line with new mechanical design and support for advances in cartography and hardware technology with its release of the eTrex 10, eTrex 20, and eTrex 30, Garmin became the first company to manufacture and distribute a worldwide consumer navigation product supporting both GPS and GLONASS satellite constellations. On May 13, 2015 Garmin released the eTrex 20x and 30x, which succeeded the eTrex 20 and 30. The main upgrade was a higher resolution screen and 4GB storage, double of the previous models.