• Long battery lifePolar Ignite 2 gives you up to 5 days in watch mode, or up to 20 hours of continuous training time.• Integrated GPSGPS, GLONASS, Galileo and QZSS with assisted GPS for fast fix times.• Advanced wrist-based heart ratePolar Ignite tracks heart rate with the Precision Prime™ sensor f..
• Advanced wrist-based heart ratePolar Vantage M2 tracks heart rate with the Precision Prime™ sensor fusion technology.*• Integrated GPSGPS, GLONASS, Galileo and QZSS with assisted GPS for fast fix times.• Nightly Recharge™The Nightly Recharge™ recovery measurement shows you how well you recover fro..