mobineX does not offer a truly unlimited eSIM plan for Hong Kong.  All of the plans that carry the word “Unlimited” in the name have a defined data cap, such as 28 GB for 3 days, 42 GB for 5 days, 52 GB for 7 days, 65 GB for 10 days, 91 GB for 15 days, or 169 GB for 30 days.  Alternatives with larger flat data allowances are also available, for example a 100 GB plan for 60 days or a 169 GB plan for 30 days.  
Because the "Unlimited" label only reflects the marketing name, the data provided is still limited.  After the data cap is reached, speed is reduced to a lower tier (for instance 128 kbps for the 1 GB “Unlimited Standard” or 1024 kbps for the 5 GB “Unlimited Gold” plan).  Selecting a fixed data plan without a speed reduction may be more cost‑effective for users who consume a lot of data.