Compare Sigma Sport PC 15.11 vs Sigma Sport PC 25.10 - Sigma Sport PC 15.11 vs Sigma Sport PC 25.10 Comparison by Price, Specifications, Reviews & Features | Gadgets Now
User manual Sigma PC 3.11 (English - 17 pages)
User manual Sigma PC 26.14 (English - 14 pages)
SIGMA 15.11 heart rate monitor with a band, blue | MikeSPORT