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[ln] Maximise training, maintain intensity and monitor calorie burn with automatic wrist-based heart rate monitoring [ln] [ln]
– [ln] Surge automatically monitors how long and how well you sleep [ln] [ln]
– [ln] Built with eight-sensor technology and high battery life [ln] [ln]
– [ln] With multi-sport functionality Surge, lets you track every aspect of your training [ln] [ln]
– [ln] Designed with improved smartwatch features [ln] [ln]