Nokia's Series 40 is a mobile phone platform that was widely used in feature phones from the early 2000s until the mid-2010s. It provided basic smartphone-like capabilities, including support for applications, multimedia, and internet connectivity, while maintaining a simple user interface. Series 40 devices were known for their long battery life and affordability, making them popular in emerging markets. The platform supported various applications and games, including popular titles like Snake and Angry Birds. Nokia's Series 40 played a significant role in the company's strategy to reach a broader audience before the rise of smartphones, ultimately paving the way for more advanced operating systems like Windows Phone.