Wireless electronic devices may include a ground plane, a double ring antenna and non-cellular antennas integrated within the double ring antenna. 
The double ring antenna may comprise first and second metal rings around the perimeter of a ground plane to operate as MIMO cellular antennas. 
At least one non-cellular antenna, such as a MIMO Wi-Fi antenna, may be integrated between the first and second metals rings on one or more sides of the wireless electronic device