Hi, Aloma. I was reflecting on this very thing the other day - the sweet spot in terms of usefulness/saturation in phones. I remember the first WAP-enabled phones of the late 90s (?), such as Neo's Nokia model from The Matrix, which were very basic. I would choose to roll the clock back to the early BlackBerry era, at the start of 'smartphones'. All the information and communication you needed, but without the app bloat that has happened since.

You may find this article from the other day interesting:

https://medium.com/thought-thinkers/i-miss-my-blackberry-8800-bb7cd5ce0825