As of 2015, some top cellphone providers are Verizon Wireless, T-Mobile and Sprint. Verizon Wireless offers the most reliable and fastest cellphone connectivity, according to independent testing agency RootMetrics. The company offers a wide selection of devices including exclusive Motorola Droid devices.
T-Mobile provides good connectivity in metropolitan areas. The company doesn't subsidize its phones, but its phone plans cost less than competing cellphone providers. When a customer signs up for T-Mobile, he can use his own cellphone and transfer his existing phone number with another service provider to T-Mobile. In addition, the company allows customers to terminate their services anytime without penalty. T-Mobile is one of two cellphone providers in the United States that offer unlimited and unthrottled data plans.