ZenSim does not provide a truly unlimited data eSIM for travelers visiting the Netherlands. All of the plans listed under the “Unlimited” name actually cap the high‑speed data at 3 GB per day; after that threshold is reached, the speed is reduced, although the specific throttled speed is not listed.
Instead, ZenSim offers fixed‑data plans that can be more cost‑effective for most users. For example, a 20 GB plan for 10 days costs $23 USD, while a 10 GB plan for the same period is $15 USD. Similar fixed‑data options are available for 30‑day validity at slightly lower prices. Choosing one of these plans allows travelers to avoid speed reductions and better match their data needs.