Ubigi does not provide an unlimited data eSIM plan for Singapore. All of its Singapore‑covering offerings have a hard data cap listed in the plan details. The largest fixed‑data packages include 200GB for 360 days and 60GB for 30 days, both delivered via 5G. These plans are priced in the range of $190.00 to $290.00 USD depending on the data amount and validity, and give you a set amount of high‑speed data that must be used within the specified period. If you need a very large data allowance, a fixed‑data plan can be more cost‑effective than a pay‑as‑you‑go model, unless you are an extremely heavy data consumer.