DESIM
Get an eSIM

Guides

Working out whether an eSIM suits your trip, and getting it set up.

  1. Guides

    eSIM or roaming: what a two-week trip actually costs

    We priced the same fortnight in Japan three ways — roaming, an airport SIM, and an eSIM bought before leaving.

    18 Aug 2026 · 7 min
  2. How-to

    How to install an eSIM on an iPhone

    Every step with the exact menu names, including where the setting hides on older iOS versions and what to do if the QR code won't scan.

    11 Aug 2026 · 6 min
  3. Destinations

    How much data you actually need in Japan

    Maps, translation and train apps are lighter than people expect. Here's what a week of normal use really consumes.

    29 Jul 2026 · 6 min
  4. How-to

    Using an eSIM without losing your usual number

    Dual-SIM explained simply: which line sends your texts, which one carries data, and how to stop your phone getting it wrong.

    15 Jul 2026 · 5 min