ETravelSim does not provide a true unlimited data eSIM for Switzerland. The plans that carry “Unlimited” in their name give 4GB per day of high‑speed data; once that daily quota is reached the speed drops to 128kbps. Because of this threshold the plans are not unbounded in the sense of unlimited high‑speed service.
Instead, ETravelSim offers fixed‑data plans that can be more cost effective for heavy data users. For example, the Travel eSIM for Europe 50 GB – 30 days / Data Only plan gives 50 GB for 30 days at $29.19 USD, and the Europe eSIM 50 GB – 30 days / Data Only plan provides the same 50 GB for $57.00 USD. These fixed‑data options are available for Switzerland and can be chosen if a traveler needs a substantial data allowance without the throttling that comes with the “Unlimited” plans.