Ant + cadence /speed sensor

chollaman
chollaman Posts: 2
edited June 2013 in Road general
Ive seen lots of ANT + Speed Cadence sensors for Garmin, Bontranger, Cateye etc. Do these need anything else to sync with my Iphone and Strava or being ANT+ they should connect with no other components. Interested in getting one but not sure which one. Thanks in advance Craig

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