- I am in the MRT tunnel but I don’t seem to be getting 5G speeds. How come?

Although 5G Singtel’s coverage is quite extensive, there are still areas that are not yet 5G covered. However, the good news is that coverage expansion is an on-going activity, and 5G coverage will be provided in due course. In the meantime, where 5G is not available, you should be adequately served by Zero1 on 4G.