Using an eSIM (embedded SIM) in Cambodia offers several benefits to mobile phone users. Firstly, it eliminates the need for a physical SIM card, making it more convenient and easier to switch carriers or plans. Secondly, it allows users to have multiple phone numbers on a single device, which is helpful for people who travel frequently or need a separate number for work. Thirdly, eSIMs tend to be more secure than physical SIM cards, as they are harder to remove or tamper with. Finally, using eSIMs can help reduce waste and promote sustainability, as there are no physical SIM cards to dispose of.