Bouygues Telecom's 30-day option is €30. A Slashtel eSIM with at least 3GB for the same trip is €4.90. Keep your Bouygues Telecom number for calls and texts.
Buy the Kazakhstan eSIM →Bouygues Telecom's 30-day Pass Internet Voyage Monde option costs €30 (3GB of data). A Slashtel data eSIM for Kazakhstan with at least 3GB for 30 days costs $5.49, about €4.90, so €25.10 less. The eSIM is data only: keep your French SIM in the phone for calls and texts. Bouygues Telecom prices checked on bouyguestelecom.fr on 26 October 2026.
| Bouygues Telecom | Includes | Slashtel eSIM (same days or more) | Difference |
|---|---|---|---|
| €30 · 30 days | 3GB data only | 3GB, 30 days: $5.49 (≈€4.90) | €25.10 less |
Bouygues Telecom prices from bouyguestelecom.fr, checked 26 October 2026; Bouygues Telecom's options include calls as well as data. Where Bouygues Telecom charges by the day, we compare an eSIM with at least 1GB a day. Bouygues Telecom Pass Internet Voyage prices and destination lists from the official tariff guide valid from 3 Aug 2026 (destination list dated 26 Jan 2026) and the Pass Internet Voyage page, checked 26 Oct 2026. Passes cover data only. Out-of-pass data outside Europe is 14 EUR/MB on plans (Switzerland 0.06 EUR/MB); payg listed only where no pass covers the destination. UK is in Bouygues' Europe zone. Higher plans such as Méga BiG include some non-EU destinations; not modelled. Slashtel prices are live, in US dollars, converted at 0.89 per $1 (daily reference rate); your card is charged in your own currency at checkout. Bouygues Telecom is a trademark of Bouygues Telecom SA. Slashtel is not affiliated with Bouygues Telecom.
Yes, Bouygues Telecom roams in Kazakhstan, at €30 for 30 days on its Pass Internet Voyage Monde option (checked 26 October 2026). A travel eSIM gives you local data there instead, while your Bouygues Telecom number stays active for calls and texts.
For data, the eSIM. Bouygues Telecom's 30-day option is €30; a Slashtel eSIM with 3GB for 30 days is $5.49 (about €4.90). Bouygues Telecom's option also includes calls, which the eSIM does not.
Yes. The eSIM is added alongside your Bouygues Telecom 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 Bouygues Telecom line. Whether Bouygues Telecom charges for anything you receive abroad depends on your plan, so check with Bouygues Telecom 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.