Sky Mobile's 10-day option is £20. A Slashtel eSIM with at least 10GB for the same trip is £10.34. Keep your Sky Mobile number for calls and texts.
See New Zealand eSIM plans →Sky Mobile's 10-day Global Roaming option costs £20 (£2/day x 10 days). A Slashtel data eSIM for New Zealand with at least 10GB for 30 days costs $13.69, about £10.34, so £9.66 less. The eSIM is data only: keep your UK SIM in the phone for calls and texts. Sky Mobile prices checked on sky.com on 26 September 2026.
| Sky Mobile | Includes | Slashtel eSIM (same days or more) | Difference |
|---|---|---|---|
| £6 · 3 days£2/day x 3 days | £2/day x 3 days | 3GB, 15 days: $4.89 (≈£3.69) | £2.31 less |
| £10 · 5 days£2/day x 5 days | £2/day x 5 days | 5GB, 30 days: $7.79 (≈£5.89) | £4.11 less |
| £14 · 7 days£2/day x 7 days | £2/day x 7 days | 10GB, 30 days: $13.69 (≈£10.34) | £3.66 less |
| £20 · 10 days£2/day x 10 days | £2/day x 10 days | 10GB, 30 days: $13.69 (≈£10.34) | £9.66 less |
Sky Mobile prices from sky.com, checked 26 September 2026; Sky Mobile's options include calls as well as data. Where Sky Mobile charges by the day, we compare an eSIM with at least 1GB a day. Slashtel prices are live, in US dollars, converted at 0.76 per $1 (daily reference rate); your card is charged in your own currency at checkout. Sky Mobile is a trademark of Sky UK Limited. Slashtel is not affiliated with Sky Mobile.
For data, the eSIM. Sky Mobile's 10-day option is £20; a Slashtel eSIM with 10GB for 30 days is $13.69 (about £10.34). Sky Mobile's option also includes calls, which the eSIM does not.
Yes. The eSIM is added alongside your Sky Mobile 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 Sky Mobile line. Whether Sky Mobile charges for anything you receive abroad depends on your plan, so check with Sky Mobile 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.