StarHub's 3-day option is S$6. A Slashtel eSIM with at least 1GB for the same trip is S$3.33. Keep your StarHub number for calls and texts.
Buy the South Korea eSIM →StarHub's 3-day DataTravel Asia Pacific 1GB option costs S$6 (1GB of data). A Slashtel data eSIM for South Korea with at least 1GB for 7 days costs $2.59, about S$3.33, so S$2.67 less. The eSIM is data only: keep your Singaporean SIM in the phone for calls and texts. StarHub prices checked on starhub.com on 26 October 2026.
| StarHub | Includes | Slashtel eSIM (same days or more) | Difference |
|---|---|---|---|
| S$6 · 3 days | 1GB | 1GB, 7 days: $2.59 (≈S$3.33) | S$2.67 less |
| S$16 · 30 days | 8GB | 10GB, 30 days: $10.89 (≈S$13.98) | S$2.02 less |
| S$20 · 30 days | 12GB | 20GB, 30 days: $16.09 (≈S$20.66) | StarHub cheaper by S$0.66 |
| S$40 · 30 days | 8GB | 10GB, 30 days: $10.89 (≈S$13.98) | S$26.02 less |
| S$50 · 30 days | 12GB | 20GB, 30 days: $16.09 (≈S$20.66) | S$29.34 less |
| S$80 · 30 days | 1GB | 3GB, 30 days: $4.69 (≈S$6.02) | S$73.98 less |
| S$30 · 3 daysS$10/day x 3 days | S$10/day x 3 days | 3GB, 15 days: $3.89 (≈S$4.99) | S$25.01 less |
| S$50 · 5 daysS$10/day x 5 days | S$10/day x 5 days | 5GB, 30 days: $4.89 (≈S$6.28) | S$43.72 less |
| S$70 · 7 daysS$10/day x 7 days | S$10/day x 7 days | 10GB, 30 days: $10.89 (≈S$13.98) | S$56.02 less |
| S$100 · 10 daysS$10/day x 10 days | S$10/day x 10 days | 10GB, 30 days: $10.89 (≈S$13.98) | S$86.02 less |
StarHub prices from starhub.com, checked 26 October 2026; StarHub's options include calls as well as data. Where StarHub charges by the day, we compare an eSIM with at least 1GB a day. From StarHub DataTravel, DataTravel Unlimited, RoamEasy Daily and per-destination rates pages; DataTravel 2GB and 3GB packs carry 4X promo data until 31 Dec 2026; DataTravel page still quotes the old $30/day cap but the Unlimited page and rates tool say $40/day from 1 Oct 2026; out-of-pack data is billed per MB but no per-MB rate is published; prepaid plans ($12 to $30 a month) include SEA roaming data (MY, ID, PH, VN, TH) and Unlimited+ postpaid plans include roaming data, neither modelled as a pass. Slashtel prices are live, in US dollars, converted at 1.28 per $1 (daily reference rate); your card is charged in your own currency at checkout. StarHub is a trademark of StarHub Ltd. Slashtel is not affiliated with StarHub.
Yes, StarHub roams in South Korea, at S$6 for 3 days on its DataTravel Asia Pacific 1GB option (checked 26 October 2026). A travel eSIM gives you local data there instead, while your StarHub number stays active for calls and texts.
For data, the eSIM. StarHub's 3-day option is S$6; a Slashtel eSIM with 1GB for 7 days is $2.59 (about S$3.33). StarHub's option also includes calls, which the eSIM does not.
Yes. The eSIM is added alongside your StarHub SIM, so your number stays in the phone for calls and texts such as bank codes. Set the eSIM as the line for mobile data and turn data roaming off on the StarHub line. Whether StarHub charges for anything you receive abroad depends on your plan, so check with StarHub before you travel.
No. It is data only, with no phone number. You can call on WhatsApp, FaceTime or similar apps over the eSIM data.
Most iPhones from the XS onwards, Google Pixel 3 and later, and recent Samsung Galaxy S, Z and A models, provided the phone is not carrier-locked. Check under Settings for an option to add an eSIM.
Install it at home before you fly, while you have Wi-Fi, and switch mobile data to it when you land.