So Light It Could Fly At just 30g with COROS nylon band, COROS PACE 3 is the lightest GPS watch in the world at its launch. Don’t let yourself get weighed down by more than you need, with the COROS PACE 3 you will be ready for your new personal best – be it in a race or in the weight room. Upgrades from PACE 2 to PACE 3 Navigation and route planning Dual Frequency GPS, Blood Oxygen sensor, barometer Even longer GPS battery life - now up to 38 hours Sleep Tracking Better GPS Performance Like the Pace 3's bigger brothers the Pace 3 now gets the advanced chipset connecting to all 5 GPS systems and dual frequency to give even more accurate tracking. The new barometer provides better altitude tracking. The PACE 3 now also allows for navigation. The sensors have been upgraded so there is now also Blood Oxygen monitoring and the heart rate sensor has been improved. Even Better Battery life Thanks to the efficiency of the COROS GPS battery technology, COROS PACE 3 now offers 38 hours of full GPS battery life. That’s a 26% increase from the COROS PACE 2. If you need a little extra life, switch to UltraMax mode when the watch has low battery remaining. Endurance on Your Wrist - now up to 24 hours With a smaller built in battery, COROS PACE 3 still offers 24 days of daily use. That’s 24 days of tracking heart rate and sleeping, triggering backlight, measuring steps, getting notifications and even alarms every day. So, leave your charger behind, and travel for your next race, game or family vacation with confidence.