This lightweight dome-shaped WebWatch from Shakespeare serves as three antennas in one. First, it extends access to the Internet from a Wi-Fi hot spot, then connects to cellphone networks with up to 4G speeds and receives local TV channels. Measuring 11.75 inches wide by 13 inches tall at 3.85 pounds, it features a 25-foot coaxial cable for 12-volt power and TV reception. Android and iOS apps and a web browser help manage the WebWatch. Installation includes pole- or surface-mount options. $899.95; shakespeare-marine.com
