Jim is blind and wants to know if there's a mobile phone that offers replaceable batteries when it dies. Leo says no, those days are gone. But the good news is that external battery packs are the thing now and they can charge several times before he'd have to recharge them. Leo likes the Anker PowerCore 5000 for about $20.
Jim also wants a good weather app that offers consistent results. Leo says that there will always be a lag in updating, and there's different reporting stations in different locations. The bottom line is that while weather reporting is a science, it's not going to be perfect. The Netatmo is a weather station at home, which reports to the internet. It's $150. The app will then aggregate all weather data and he'll know what the weather is in his neighborhood vs. somewhere else.