If you're traveling to Macau or living there, you might want to consider switching to an eSIM. An eSIM is a digital SIM card that can be activated and downloaded onto your phone, without the need for a physical card. Some benefits of using an eSIM in Macau include the ability to easily switch between mobile networks without needing a physical SIM card, and the convenience of being able to activate a new plan directly on your phone. Another benefit is that eSIMs are more secure than physical SIM cards, as they cannot be easily stolen or misplaced. Additionally, eSIMs are more environmentally friendly, as they don't require the production and disposal of physical SIM cards.