Hands-on: Polar's M430 GPS watch with optical HR | DC Rainmaker
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Polar updates algorithms to make heart rate sensor better in new M430 running watch | Ars Technica
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Polar M430 and A370 heart rate sensors have a problem with dark skin - Wareable
Polar M430 Review + Discount | Detailed | GPS & Optical Run Watch
Polar updates algorithms to make heart rate sensor better in new M430 running watch | Ars Technica
Polar M430 In-Depth Review | DC Rainmaker
Polar M430 Review + Discount | Detailed | GPS & Optical Run Watch
Polar M430 | Running watch with GPS tracker and pace | Polar USA
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Polar M430 In-Depth Review | DC Rainmaker
Polar M430 Advanced Running Watch - Ultra Running Magazine
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Polar M430 review - Wareable
Polar updates algorithms to make heart rate sensor better in new M430 running watch | Ars Technica
Polar M430 In-Depth Review | DC Rainmaker
