Polar M430, to repeat the success of the M400, but with optical pulse sensor - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...
Polar M430 Replacement Strap / Band 100% Original - NEW | eBay
Polar M430 GPS Running Watch, White (90064405) + Bally Total Fitness Bluetooth Digital Body Mass Bathroom Scale (Black) + Fusion Bluetooth Headphones Black/Red + 1 Year Extended Warranty - Walmart.com