Statement:
The level of criminal activities is lower in Saudi Arabia than in Singapore

In the The Most Criminal Countries rating Saudi Arabia holds position #124 ²⁰²² out of 139 and Singapore is #114 out of 139 ²⁰²².
Position of Saudi Arabia is better than position of Singapore.
Saudi Arabia is an outsider of the "The Most Criminal Countries" rating. So in most cases, you can feel safe and unlikely will face a criminal, compared to Singapore

Referencies:

1. The Most Criminal Countries ²⁰²² by Numbeo

   The countries in the rating sorted by 'Crime Index' in descending order.

   Saudi Arabia	'Crime Index' value is	24.62
   Singapore	'Crime Index' value is	27.22