I dare someone to tell me its the cost of the programing and software My iPod has umpteen more MB memory than my SRM headunit and cost. 내 iPod에는 SRM 헤드 유닛보다 훨씬 더 많은 MB 메모리가 있고 비용이 많이 듭니다. A Garmin can all be it not as effective be used as a headunit for while a PCVI costs is you buy the HRM strap and the Pod.