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What is the recommended data allowance for a San Francisco trip using CoreESIM?

Updated May 30, 2026

For a typical 3-5 day itinerary in San Francisco, CoreESIM suggests a data provision of 5 GB to 8 GB. This allocation supports standard usage patterns including frequent navigation via mapping services (e.g., Apple Maps, Google Maps), moderate social media engagement, and essential communications. If your usage profile includes significant video streaming, extensive cloud backups, or mobile hotspot tethering, consider a higher tier, such as 15 GB, to prevent data exhaustion and ensure uninterrupted connectivity across the city's diverse districts.

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