Smartphones are complex and can be examined from many angles. Here are some common discussion areas. Let me know which one (or more!) you'd like to focus on:
Discussion Topics: Camera innovation, chip performance (e.g., $A$ vs. $S$ series), foldable phones, battery life vs. fast charging, and the race for the thinnest bezels.
Discussion Topics: The iOS vs. Android debate, openness vs. security, app availability, and how well they integrate with other devices (e.g., smartwatches, tablets).
Discussion Topics: The high cost of flagship phones, the rise of budget and mid-range devices, planned obsolescence, and the global market share of different brands (Samsung, Apple, Xiaomi, etc.).