The Phone You Use Outside (or, the Solar-Powered iPhone X)
I’m certain you’ve heard of the iPhone X. The thousand dollar “phone of the century” or something like that. You must have also heard of Tesla, the electric car company. But have you heard of the iPhone X Tesla? It was made by Caviar, neither of those companies. And it’s not even a phone! The iPhone X costs about $1,000, but the iPhone X Tesla is about $4,500. It comes with the iPhone X and a thick, bulky case. If you strap the case on the phone, it has some solar panels that charge a “secondary battery” that gives the phone extra power. Is $3K worth it for a solar-powered phone case? Probably not. But it would be cool!
Source: https://www.theverge.com/circuitbreaker/2018/5/16/17362546/caviar-4500-iphone-x-tesla-solar-charger