Spark's 10-day option is NZ$40. A Slashtel eSIM with at least 3GB for the same trip is NZ$7.01. Keep your Spark number for calls and texts.
Buy the Germany eSIM →Spark's 10-day Roaming Pack option costs NZ$40 (3GB of data, 300 minutes and 300 SMS). A Slashtel data eSIM for Germany with at least 3GB for 30 days costs $3.89, about NZ$7.01, so NZ$32.99 less. The eSIM is data only: keep your New Zealand SIM in the phone for calls and texts. Spark prices checked on spark.co.nz on 19 October 2026.
| Spark | Includes | Slashtel eSIM (same days or more) | Difference |
|---|---|---|---|
| NZ$40 · 10 days | 3GB, 300 min, 300 SMS | 3GB, 30 days: $3.89 (≈NZ$7.01) | NZ$32.99 less |
| NZ$65 · 30 days | 20GB, 300 min, 300 SMS | 20GB, 30 days: $18.29 (≈NZ$32.96) | NZ$32.04 less |
| NZ$50 · 30 days | 20GB | 20GB, 30 days: $18.29 (≈NZ$32.96) | NZ$17.04 less |
Spark prices from spark.co.nz, checked 19 October 2026; Spark's options include calls as well as data. Where Spark charges by the day, we compare an eSIM with at least 1GB a day. Slashtel prices are live, in US dollars, converted at 1.80 per $1 (daily reference rate); your card is charged in your own currency at checkout. Spark is a trademark of Spark New Zealand. Slashtel is not affiliated with Spark.
Yes, Spark roams in Germany, at NZ$40 for 10 days on its Roaming Pack option (checked 19 October 2026). A travel eSIM gives you local data there instead, while your Spark number stays active for calls and texts.
For data, the eSIM. Spark's 10-day option is NZ$40; a Slashtel eSIM with 3GB for 30 days is $3.89 (about NZ$7.01). Spark's option also includes calls, which the eSIM does not.
Yes. The eSIM is added alongside your Spark 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 Spark line. Whether Spark charges for anything you receive abroad depends on your plan, so check with Spark 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.