Mobile phone features (2.0), dual line support, infrared, Bluetooth (2.0) and WiFi connectivity, NFC, instant messaging, Internet e-mail and browsing and serving as a wireless modem. The first smartphone was the Nokia 9000 Communicator in 1996 which added PDA functionality to the basic mobile phone at the time. As miniaturization and increased processing power of microchips has enabled ever more features to be added to phones, the concept of the smartphone has evolved, and what was a high-end smartphone five years ago, is a standard phone today. Several phone series have been introduced to address a given market segment, such as the RIM
Mobile phone overuse or electronic devices while driving. The significant number of injuries and accidents from distracted driving can be contributed at least partially to mobile phone overuse. There is currently no national ban on texting while driving, but many states have implemented laws to try to prevent these accidents. German psychotherapist and online addiction expert Bert te Wildt recommends using tools such as Offtime and Menthal to help prevent mobile phone overuse. Many smartphone addiction activists (such as Tristan Harris) recommend turning one's phone screen to grayscale mode, which helps reduce time spent on mobile phones by making them boring to look