Can I expect free roaming in Greece with my existing UK (O2, EE, Vodafone) or US SIM, or is CheapESIM a better value?

Relying on your home SIM for roaming in Greece is a common and costly mistake. Post-Brexit, many UK carriers like O2, EE, and Vodafone have reintroduced daily roaming charges, often ranging from £2-£6. US carriers like AT&T, T-Mobile, and Verizon typically charge upwards of $10-$15 per day or offer expensive international add-ons. CheapESIM provides a transparent, low-cost alternative. For example, a 7-day trip could cost you £14-£42 with a UK SIM, or $70-$105 with a US SIM, while a CheapESIM plan offers significant savings with upfront, clear pricing and no hidden fees.