How do roaming charges in Russia (e.g., Moscow, St. Petersburg) compare for EU, UK, or US mobile plans, and what does eSIMTrends data suggest?

eSIMTrends data consistently shows that traditional roaming in Russia for subscribers from the EU, UK, or US is prohibitively expensive. Unlike the 'roam like at home' policies within the EU/EEA, Russia falls outside these zones, triggering high international roaming rates. For instance, a single gigabyte of data can cost upwards of $100-$200 USD with some carriers, making it an unsustainable option for most travelers. Our analysis indicates that an eSIM offers a significant cost advantage, often reducing data expenses by 90% or more compared to conventional roaming in cities like Moscow and St. Petersburg.