ByteSIM does not provide truly unlimited high‑speed data plans for Jersey. The plans marketed as “Unlimited” actually cap the data at 1GB per day and throttle speeds to 10240kbps once the limit is reached. Travelers who need more consistent coverage may choose one of ByteSIM’s fixed‑data options instead, such as the 50GB plan for 30 days priced at $54.90 USD, the 20GB plan for 30 days at $25.90 USD, or the 10GB plan for 30 days at $14.90 USD. These alternatives offer a higher overall data allowance and avoid the speed reduction that applies after the daily caps of the “Unlimited” plans are exceeded.