The Pebble is a smartwatch developed by Pebble Technology Corporation and released in 2013 that received the majority of its initial funding via the crowd funding platform Kickstarter. The watch features a black and white e-paper display, a vibrating motor, a magnetometer, ambient light sensors, and an accelerometer, enabling its use as an activity tracker. The Pebble is compatible with Android and iOS devices. When connected to one of these devices via BlueTooth, it will vibrate and display text messages, emails, incoming calls, and notifications from social media accounts when they are received on the paired device. It can also act as a remote control for the phone, or for cameras such as the GoPro. As of February 2014, the Pebble app store had over 1,000 applications developed using Pebble's free software development kit. The Pebble raised $10.3 million through Kickstarter, the most for any product on the site until that time. Best Buy, an American consumer electronics corporation, began selling Pebble smartwatches in July 2013, and sold out within five days.