I just changed US$ at SCB at 0.8% premium over IB. But if my holding period is 20 year and I'm looking at an average return of 4% compounded yearly, the 0.8% is insignificant to me.
IB US$100k must only be foreign shares.
SCB S$200k, can be foreign shares, local shares, E-saver savings account.
My view is that SCB $200k is easier to reach than US$100k if your portfolio is at 50% Singapore, 50% overseas.
When you hit $200k, you get no minimum commission, Visa infinite card (no annual fees so far), and Priority pass.