Suunto Race 2 Review: Improved Heart Rate Accuracy & GPS Performance

Design and Display Upgrades

• 💎 The Suunto Race 2 features a thinner and lighter design compared to its predecessor, with a larger and brighter 1.5-inch display.
• ✨ It incorporates LTPO technology for dynamic refresh rate adjustment, enhancing battery life while maintaining a crisp 466x466 resolution.
• 🎨 While retaining familiar lines, the bezel design is now cleaner, moving away from the ridges of the original Race, and the lugs lay flatter for improved comfort.

Performance and Features

• 🚀 The watch boasts a new, faster processor, resulting in a significantly improved interface speed with minimal lag.
• 🔋 Battery life is advertised up to 18 days as a smartwatch, with real-world usage (including always-on display and daily activities) yielding around 7-10 days.
• 🗺️ It includes offline topographic maps with elevation data, though street and trail labels are absent, and maps are not routable.
• 🔗 A welcome improvement is the ability to pair multiple sensors of the same type, allowing seamless switching between devices.

Health and Training Feedback

• ❤️ The Race 2 features a redesigned heart rate sensor, aiming for improved accuracy across various activities.
• 📈 Health tracking includes 24-hour heart rate, resting heart rate, steps, calories, a 'Resources' metric for energy levels, and sleep tracking with duration, score, stages, and blood oxygen.
• 🏋️ Training feedback includes HRV tracking, a recovery index, Training Stress Balance (TSB), Training Stress Score (TSS), and metrics like Chronic Training Load (CTL) and Acute Training Load (ATL).
• 🏃 Performance metrics such as ramp rate, running VO2 Max, and race time predictors are also provided.

GPS and Heart Rate Accuracy Testing

• 🛰️ GPS accuracy, using a dual-frequency GNSS chipset, is generally solid, performing well on open tracks and most trail runs.
• 🏙️ However, accuracy in challenging urban environments like New York City showed some inconsistencies, with the watch occasionally losing track or showing offsets.
• ❤️ Heart rate accuracy saw significant improvements, performing well in indoor cycling and most outdoor activities, including gravel riding and steady-state running.
• 🏋️ Weight training and HIIT presented challenges, but the Race 2 performed better than expected, though it showed some slowness in reacting to rapid heart rate changes.
• ⛰️ Barometric altimeter accuracy generally reported higher elevation gain than other sources, with some drift observed during activities.

Conclusion

• ✅ The Suunto Race 2 is considered a significant upgrade, particularly addressing the heart rate accuracy issues of previous models.
• 💰 While the price is competitive, the meaningful upgrades, especially in sensor technology, provide more accurate data and enhanced health and training insights.