I would add that it’s the inefficiency of software that drives our phones to the bin.
The applications often relies on non optimized libraries, or are an aggregation of more and more of features and options that then requires the latest phone in order to work.
Even if this was true, that wouldn’t lead to less emissions but just more flights.
As we can see, every time the efficiency increases, the flight price drops, and the number of flights increases. So, it just allows us to fly more for the same amount of C02.