Finally, a multi-sports watch with a sophisticated design! More than that, it offers many functions to help you with your training. The RCX5 has a new Hybrid chest strap that can transmit at 2 frequiencies. It also uses a proactive training system which you can personalize for different training sessions. Don't just measure your performance values. Plan, optimize and improve your training with this technologically advanced watch and cross the finish line in your target time.