Rugged Dive Laptop and smartwatch having a solar charging lens, effortless-to-browse monochrome Display screen and QuickFit bands to help you modify your fashion in a 2nd Battery lifestyle: nearly 25 hours in dive method, 4 months in smartwatch mode with solar charging in 3 hours of direct daylight (fifty,000 lux) https://amzn.to/3woBXnK