More consumers than ever before are buying smartphones. A smartphone is an Internet-enabled mobile phone with the ability to purchase and run applications. Smartphones are generally equipped with voice, data, Wi-Fi, Bluetooth, and GPS functions. Operating systems include Google’s Android, Apple’s iOS and Windows’ Mobile 7. Most function on a 3G wireless connection and can switch to Wi-Fi when it’s available. Newer models are being built to accommodate the upcoming nationwide deployment of 4G wireless networks.