China used the same Chinese vaccines as Hong Kong and according to ABC News in Australia only 62% of Shanghai residents over 60 have been vaccinated. This is fairly typical; Chinese policy was to focus on vaccinating people of working age. There have been multiple reported outbreaks at elderly care facilities in Shanghai recently. China is still reporting no Covid deaths. Now, a bunch of people have been complaining their relatives at those facilities died, but officially none of them are Covid deaths.
Hong Kong has a worse vaccination rate amongst the elderly and better vaccine mix than the mainland (more imported vaccines, probably less of the more dubious Chinese-made ones), but broadly speaking they're very similar. I think even the Western countries with comparatively poor vaccination rates are still better than either.
