Get a selfie at
https://www.jewelchangiairport.com/en/attractions/rain-vortex.html
If you're not vegetarian eat Hainanese chicken rice
Eat here too
https://www.foodandwine.com/news/michelin-hawker-chan-stall-singapore-loses-star eve if they lost a Mischelin star it should still be good.
Last time I bought camera gear was during the
2010 Singapore GP from
https://www.cathayphoto.com.sg/
Email them in advance that you're a tourist who wants to buy camera gear so they'll give you a discount.
Although from my perspective it isn't the
region's cheapest territory to buy gear.
Last time I was there was a few months prior to COVID lockdown.