sentence: mobile phone manufacturers u.s. manufacturers : amazon apple blu products firefly garmin google hp motorola sonim international manufacturers : alcatel one touch blackberry coolpad htc huawei kyocera lg microsoft mobile oy ( previously nokia oyj ) nec casio ( g'zone ) pantech personal communications devices ( pcd ) samsung sharp sony zte mobile phone vs. cell phone while it is '' mobile phone '' in british english , it is '' cell phone '' in american english .