EZVIZ smart plug reviews: The T30-10A and T30-10B tell us EZVIZ is better at building security cameras than smart plugs

EZVIZ is best known for its security camera lineup, and recently it expanded into other smart home gear; specifically, a pair of smart plugs you'll soon find exclusively--for now--at Walmart. The EZVIZ T30-10A-US and T30-10B-US differ in size as well as function, but only modestly. The $20 T30-10B is slightly larger, rectangular, and has its receptacle mounted off to one side. It measures nearly 3 inches wide by about 1.5 inches tall. The $5 premium over the cheaper device delivers an energy-monitoring feature to the mix.