Staying in Touch with Family Back Home from Japan

Quick answer

Hi, I'm Miya, and one of the first worries I hear from newcomers is how to stay close to family back home. The good news: it's easier than ever. You really only need two things working well — reliable mobile data and a couple of familiar apps — and the distance starts to feel a lot smaller. Let me walk you through what actually works.

The apps that keep you close

Most families settle on one main app and stick to it. LINE is the everyday standard in Japan, so it's handy if relatives visit or you want to share your Japan life; for family abroad, WhatsApp, Messenger, and plain video calls (FaceTime on iPhones, Google Meet, or Zoom for bigger family gatherings) all work well.

My best advice: pick whichever app your least tech-savvy relative already uses, and make that the family channel. The 'best' app is simply the one grandma will actually open.

Mind the time difference

Japan runs on a single time zone (JST), and it's usually ahead of home. It's roughly 13–16 hours ahead of North America, 7–9 hours ahead of most of Europe, and 1–3 hours ahead of much of Southeast Asia and Oceania — daylight saving shifts these by an hour in some countries at certain times of year.

The trick I share with everyone: your morning is their evening for the Americas, and your evening is their morning for Europe. Pick one recurring weekly slot that suits both sides and protect it — a standing Sunday-morning call beats hunting for a new time every week.

Why your own data beats hunting for wifi

You can lean on home or cafe wifi, but it tends to let you down at the worst moments — a video call that freezes when someone walks between you and the router, or a station where the free wifi asks you to log in again and again.

This is why I always set newcomers up with their own reliable mobile data first. When your call runs on your own connection, you can take a grandparent on a walk through your new neighbourhood, hold the camera up to the cherry blossoms, and not think about it. A plan with generous or unlimited data is what makes spontaneous, long video calls feel effortless.

Free domestic calls with the Rakuten Link app

For staying in touch inside Japan — your clinic, your landlord, a new friend — the Rakuten Link app makes domestic calls free, which takes the worry out of picking up the phone in a new country.

For family overseas, you'll mostly use data-based video and voice calls through the apps above, which run over your mobile data or wifi. So the real foundation for both is the same: a solid data connection you can count on.

Sharing the everyday, not just the big news

The families who feel closest aren't the ones with the longest calls — they're the ones who share small moments. A quick photo of your konbini lunch, a ten-second video of the train platform, a voice message on your walk home.

Set up a small family group chat and drop little things into it. It keeps grandparents in the loop between calls, and turns 'I moved to Japan' from a one-line headline into a life they get to watch unfold.

Get connected first, then reach home

All of this rests on one thing: a Japanese phone number and mobile data you can trust from day one. The good news is that it's quick to sort out. With just your residence card you can set it up yourself, and if your phone supports eSIM you can be connected in about 15 minutes — no store visit needed.

Get that in place first, and calling home tonight is just one tap away.