WiFi exists at the Haram and hotels, but cellular networks become severely congested during peak الحج days — always prepare for offline operation.
WiFi is available at المسجد الحرام (free but slow during peak times), most hotels in مكة and المدينة, and some restaurants and shopping centers. The Saudi government has invested significantly in telecom infrastructure for الحج, and 4G/5G coverage from carriers STC, Mobily, and Zain is available throughout the الحج sites.
However, the practical reality during peak الحج days (8th-13th of ذو الحجة) is that cellular networks become severely congested when 2+ million people are concentrated in the relatively small areas of منى, عرفة, and مزدلفة. Sending a simple text message can take multiple attempts, and data-heavy applications become essentially unusable. This is why الإحرامOS is built with an offline-first architecture — all ritual guidance, دعاء content, and safety features work without any internet connection. Download all necessary content, maps, and app data while you have reliable WiFi at your hotel before the الحج days begin.