2025-09-13 00:00:00 When riding a bike, you don't need a dedicated speedometer. Use your smartphone as the speedometer. It has a neat design and is easy but offers a variety of functions. You can view maps of directions of movement or save routes as GPX, KML files. You can also attach a saved file and immediately email it to them. You can specify a speed range for various situations, such as walking, biking, and driving.