Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works as intended, but the WATCH battery life is an issue on long rides

Installs easily and synched with my watch with no issues. This is a good unit that works well. The issue is not with this, but the battery life on the watch. If you plan on doing LONG rides that last longer than your battery life, you are out of luck. Good concept, but will probably rely on a separate cycling computer.