Here is a smart bike computer powered by the sun. The Garmin Edge 1040 Solar gives you up to 100 hours in battery saver mode. It adds up to 20 minutes per hour in demanding use cases. This bike computer has a 3.5-inch touchscreen display, multi-band GNSS, and app connectivity.
This cycling computer can monitor and track your exertion levels in real-time. It analyzes your recent training history to tell you whether you are doing it productively. The device notifies you when it is time to eat or hydrate. It can show you mountain biking metrics. The Edge 1040 Solar has ride type specific maps, turn by turn directions, and off-course recalculation. It is smart enough to detect accidents and alert your emergency contacts. You can also receive smartphone texts and alerts on it.