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Polar M450 - Detailed Review
S720i™/S710i™
Other Sports Watch Brands - POLAR S720i Bundle (Heart Rate Monitor, Watch, Speed Sensor, Etc....) **R3500** was sold for R1,895.00 on 19 May at 21:33 by Timeless Board Games in Johannesburg (ID:21965369)
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Troubleshooting your heart rate monitor/strap HR spikes | DC Rainmaker