WaterRower rowing machine simulates real world rowing resistance, with the use of water! With more than 25 years of experience in producing the WaterRower rowing machine, the WaterRower stands for design and is manufactured with the most extreme care and passion for detail. Resistance is generated in the unique water tank element, perfectly adjusting to the force input of the user. Due to the water and ergonomic paddle, resistance is smooth and jerk-free making it more gentle to the joints, but also soothing thanks to the pleasant rhythmic swooshing of the water. The S-4 performance Monitor displays all necessary performance data and can be connected to the We-Row software on your PC