Saudi Arabia → Hong Kong
Saudi Arabia plugs
Type GHong Kong plugs
Type GShared plug type: G
Compatibility: Compatible
Voltage — Saudi Arabia 230V — Hong Kong 220V
Voltage difference is small. Most electronics will work safely.
Device compatibility (phones)
Phones almost always support 100–240V, so yours should work safely. Check your charger label to confirm.
You likely only need a plug adapter (if socket shapes differ). Voltage is close between these countries.