On the same $150,000 gross, a worker takes home roughly 30,250 د.إ. more per year in United Arab Emirates than in Singapore. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. Singapore has very high rent pressure, while United Arab Emirates has high rent pressure. That means part of the higher take-home in United Arab Emirates can be absorbed by rent if you land in a major city.
Healthcare and pensions go in the opposite direction. Singapore runs a mixed healthcare model — MediSave/MediShield is mandatory for citizens & PRs; expats use private cover. United Arab Emirates uses a private model — Employer-provided private insurance is mandatory; quality varies by plan. The country with lower take-home often shifts costs that the other country leaves to your private budget.
Net-of-everything, a relocation decision should weigh balanced public welfare in Singapore against minimal public welfare in United Arab Emirates, plus differences in pension capture, social safety nets, and city-level cost of living.