Shares of GoPro Inc. GPRO, -3.10% are down 0.4% in premarket trading Thursday after the company announced a new entry-level action camera. The $199 Hero camera has a two-inch touchscreen display and is waterproof up to 30 feet. The camera is available today. GoPro's head of product said in a release that the Hero is intended "for people looking to share experiences beyond what a phone can capture." GoPro shares are down 45% over the past 12 months, while the S&P 500 has gained 10%.