ChillaxSIM does not provide truly unlimited high‑speed data for North America. Plans that use the word “Unlimited” in their name actually grant only 1 GB of high‑speed data per day (or 1 GB for the single‑day option), and once that quota is exhausted the speed is throttled to 5120 kbps. Therefore those plans are not unlimited in the sense of providing unrestricted data.
If you need more data you can choose one of ChillaxSIM’s fixed‑data plans. For example, a 50 GB plan for 30 days that covers the United States and Canada is available, as is a similar 50 GB plan for 30 days covering the United States, Canada, Mexico, and three additional countries. These options offer larger data allowances and do not rely on throttled speeds after a low daily limit.