Will it work inside Vatican Museums, the Sistine Chapel, and St. Peter's Basilica?

The ETravelSim Vatican City eSIM connects in St. Peter's Square, the Vatican Gardens, and most outdoor Vatican areas with strong 4G/LTE. Indoor signal weakens inside the Sistine Chapel, deep within Vatican Museums, and inside St. Peter's Basilica because of the thick ancient walls and ceiling depths — this affects every Italian carrier equally. During peak hours from 10 AM to 6 PM in summer, networks across the Vatican area get congested due to the volume of tourists. Download tickets and offline maps before entering.