Nothing plans to launch the Phone 3, its flagship, on July 1, which is expected to be the most expensive handset produced by the company.The Phone 3 will feature premium materials, major performance upgrades, and enhanced software, according to Nothing CEO Carl Pei.The Phone 3 follows the release of mid-range handsets 3a and 3a Pro, offering an upgrade in features and possibly a push into the US market.More details about the Phone 3 are anticipated to be revealed next month.