I struggled for a long time with having two phones: one for work and one for personal use. I was in Japan at the time, and it was inconvenient, especially when I had to carry both of them with me. Then I discovered eSIM from https://reddog.fish/destinations/japan/ . Now my work number is connected via eSIM, and my personal number remains on a physical card. This solution has simply changed my life: one phone, fewer unnecessary chargers, and less confusion. It turns out that eSIM is not only about modernity, but also about comfort.