This is an ultra-light, new-generation GPS running watch with an integrated barometer that equips serious runners with advanced training tools to improve running economy and performance. Make every run a good run.

S-L: wrist circumference 120-210 mm (4.7-8.2 in)

• Powerful training tools for serious runners.
• Integrated barometer with wrist-based running power.
  
• Hyperfast, high-performance core processor.
  
• Bright display for optimal readability in any condition.
  
• Advanced optical heart rate tracking technology.
  
• Accurate GPS and long-life battery.
  
• Up to 7 days on a single charge
• Up to 100h training time in power-save modes
• Up to 35h training time with full GPS and HR tracking enabled
• Rapid charging and data transfer.