オンラインオークション： Polar Grit X2 Pro Titan Premium Outdoor Smartwatch

Polar Grit X2 Pro Titan is a premium outdoor smartwatch with a titanium aerospace case and a 1.39-inch AMOLED display protected by sapphire glass. It meets MIL-STD-810H and is WR100 water resistant, pairing dual multi-constellation GPS with topographic maps and signal amplification for precise navigation in any environment. It integrates Polar Elixir biosensors (ECG, SpO2, skin temperature and Gen 4 optical heart rate) with training tools such as Training Load Pro, Recovery Pro, on-wrist Running Power, FuelWise and FitSpark, plus swimming metrics, seaso