The iGPSPORT BSC100S is a GPS cycling computer designed for cyclists looking for essential ride data and navigation features. It typically offers a clear display, GPS tracking for speed, distance, and route, and can connect to external sensors (like heart rate monitors, cadence sensors, and speed sensors) via ANT+ or Bluetooth for more comprehensive data. It's known for its ease of use, long battery life, and affordability, making it a popular choice for both casual riders and those training seriousy.