Simbye does not provide a truly unlimited high‑speed eSIM plan for Guernsey. The highest data allowances are fixed data plans: Europe Orange Holiday 100GB, 50GB, and 20GB, all valid for 30 days. The plans named “Europe Unlimited 7 Days” and “Europe Unlimited 15 Days” deliver 2GB/day at full speed, after which the data becomes unlimited but throttled to 1000kbps, so the data is not unlimited at high speed.
Because the unlimited feature is limited to reduced speed after a fixed daily allowance, travelers looking for a large amount of high‑speed data may find the fixed data plans more cost‑effective, unless they intend to consume a very high volume of data.