I was in Singapore and now I'm living in HK. Reading that SG has higher density than HK made was surprising, because here in HK there are so many needle-like ap

I was in Singapore and now I'm living in HK. Reading that SG has higher density than HK made was surprising, because here in HK there are so many needle-like apartment buildings, but I didn't see that so much in SG. I think the reason is that HK does have bigger area than SG but actually far less land is being used in HK (many hills), so practically speaking, the density is higher in HK :)