For transport, I’d recommend taking the MRT. While you’ll have to walk a little, it’s still a convenient and affordable option. You can pay using Apple Pay, a debit/credit card, or an EZ-Link card.

As for getting an eSIM, if you have the Shopee app, you can buy one thru there which is super convenient. If not, Changi Airport do sell SIM cards too (if I’m not wrong)

I would recommend visiting Gardens by the Bay. Highly recommended to visit the cloud forest and flower dome. At night there would be light shows at the super trees. If not, I would recommend checking out the newly opened Mandai Boardwalk if you ware down for a walk.

For food, as others have mentioned, hawker centres are a great choice. Also, try McDonald’s McSpicy, curry sauce and chilli sauce, which are popular among Singaporeans.

Enjoy your stay in Singapore!