JamboSim eSIM Data Plans for United Kingdom

JamboSim does not have any true unlimited data eSIM for the United Kingdom. All of its plans that advertise the “Unlimited” name provide a data cap of 3 GB per day; once the daily quota is reached, high‑speed data is throttled to 1000 kbps. This means that after the 3 GB allowance the connection slows considerably.

If you need a higher amount of high‑speed data, JamboSim offers fixed‑data plans such as the 100 GB plan valid for 180 days or the 50 GB plan valid for 30 days. These plans give a larger total data allowance without the daily cap, although they may be less cost‑effective for very heavy users compared to the “Unlimited” style offerings.

JamboSim does sell United Kingdom eSIMs that include a local phone number and outbound SMS capability. The plans come with a dialing code of +44, a UK‑local number, outbound voice calls and outbound text messaging, though no inbound calls or texts are listed. Prices for these plans range from $2.99 USD for a 1 GB / 7 day packet to $31.99 USD for a 50 GB / 30 day packet, with validity periods spanning from 3 days up to 30 days. Users are advised to confirm specific features and availability directly with JamboSim before purchasing.

JamboSim offers 25 single‑country data‑only plans that cover the United Kingdom, along with 96 multi‑country plans that include the UK on their coverage list. Prices for these plans range from roughly $1 to almost $200, with data limits spanning from 200 MB up to 100 GB. Some plans are sold with a fixed data allocation—such as 1 GB, 5 GB, or 10 GB—where the data is delivered all at once, while others impose a daily data cap that matches the overall data allowance for the plan’s validity period. All of JamboSim’s plans support tethering, and where relevant, a reduced speed limit of 1000 kbps is applied.