Earlier quoted context omitted.
It's simple. A laptop is a keyboard-oriented device, packing a,lot of computing power. It has the shortest battery life, and requires a desk, or at least a seat, to operate comfortably. A phone is a handheld device, one which is always on you. It necessarily has a smaller screen, no separate keyboard, and only has a decent battery life because it sleeps most of the time. It can have serious peak performance, but has…
Imagine we took this approach to cars A convertible is for sinny days, it has no roof at all, you should use another car on rainy days. A Smart is a 2 seater for trips to the city, its easy to find parking And a Hummer is for trips to the countryside, it won't fit into any parking spot in London. You should buy all three and use the right tool for the job
So why don’t we have a single clothing item that fits every purpose? We had 10 thousands of years to improve on it, yet we use specialized jacket in winter and a swimsuit in the summer for swimming.
Specialization and generalization are fundamental principles we live by, and both can have value, depending on context.