Samsung Electronics Co sold a record 69.4 million smartphones in the first quarter, boosting its market share to an all-time high of 33.1 percent, data from research firm Strategy Analytics showed on Friday.

Apple Inc, which sold 37.4 million iPhones in the March quarter, took 17.9 percent of the market, it said.

LG Electronics Inc grew to the third biggest on 10.3 million unit shipments, followed by China's Huawei.

(Reporting by Miyoung Kim; Editing by Jacqueline Wong and Richard Pullin)