Motorola Mobility is settling in as the mobile maestro of its parent company Lenovo. Motorola Mobility makes and markets lines of mobile phones, selling enough to make Lenovo the third biggest smartphone company. The phones, which run on the Android operating system, are sold under the Moto and Droid brands and aim the middle and lower ends of the smartphone market. Besides phones, Motorola Mobility makes and sells wearables and accessories. Lenovo bought Motorola Mobility from Google in 2014 for $2.9 billion.