This product is either discontinued or we cannot get that from suppliers.
GARMIN 010-02156-01 Forerunner 45S Iris, Silicone, Display 1.04" (26.3 mm) diameter, 208 x 208 pixels, track Runs with Built-In GPS, 24/7 Heart Rate Monitoring, Record Distance, Pace, and Intervals, Up to 7-Day Battery Life in Watch Mode.
Keep tabs on your essential running stats and health with the Forerunner 45S GPS Running Watch from Garmin. Featuring easy-to-use button controls, the Forerunner 45S can use its built-in GPS to track where you run and provide you with accurate results, such as distance, pace, and intervals.