Garmin Forerunner 265

The Garmin Forerunner 965 is positioned as the more advanced model compared to the Forerunner 265, primarily distinguished by its superior battery life and enhanced navigation features. Specifically, the 965 offers significantly longer endurance in both running mode (31 hours vs 24 hours) and standby mode (23 days vs 15 days). Furthermore, the 965 boasts a larger internal storage capacity of 32GB, compared to the 265's 8GB, which benefits users who prefer on-device music storage. While both watches share the high-quality AMOLED display and core health monitoring features, the 965 includes advanced navigation capabilities like Dual frequency GPS and map support not explicitly detailed for the 265. Therefore, the Forerunner 965 is better suited for ultra-endurance athletes or those prioritizing map access and maximum battery reserve.