Polar Vantage M GPS Watch::Technology changes daily. The Polar Vantage M GPS Watch puts the future on your wrist. The Vantage series is the only wrist-based heart rate solution on the market that utilizes both optical sensor and bio-impedance technology, which overcomes erratic readings caused by movement. After your workout, you’ll get a complete picture of your training effort with Polar’s new Training Load Pro analysis. This next generation advancement, along with Polar’s scientifically-validated smart coaching feature, sets a new standard for athletes. And, an ultra-long battery life means the Vantage M doesn’t stop until you do. Push yourself with Polar.