Coros Wearables has revealed what it claims is the lightest GPS running watch on the market. The Pace 2 Sport weighs just 29.7 grams with the nylon band — just over two grams lighter than Garmin’s Forerunner 45S. For competitive runners looking for any edge they can get while still tracking their sessions, it might be worth paying attention to.

The latest model has a processor that’s one and a half times as powerful as the one in the original Pace, and there’s four times more storage (64MB). It’ll last for up to 30 hours on a full charge while using the GPS functions and up to twice as long on the UltraMax mode. Otherwise, the Pace 2 can run for up to 20 days with daily use of features like heart rate monitoring, along with sleep and step tracking.