I don't see it as an either or question. You can invest in equity ETF's and real estate. As far as RE is concerned what is the market like where you are at? Maybe it's not really a good investment, as they say all RE is local.
Personally I don't want the hassle of directly owning RE, I invest in publicly traded REIT ETF's, easier and better diversification.
I will be in the UAE soon and will have the option to rent or buy. The market has softened, but outlook is still quite positive. As a case study, I can buy a nice one bedroom seaview condo for $270,000 USD with 25% down payment at approx. 3.5% interest rate. Annual rent for the same unit is $ 1,650 USD a month. Buying has the added benefit of giving myself and family safety and security from intrusive or scamming landlords, rent hikes, vacate notices, etc.
Note: Additionally, if a foreigner purchases real estate in the UAE with a minimum value of 1,000 000 AED ($270,000 USD), they can obtain permanent residence. This is something that is very appealing to me as a long term tax shield.