Your child's first phone: a calm guide

For a first phone, the plan matters less than people fear. What you actually want is unlimited UK calls and texts so they can always reach you, and only a small amount of data, on a line that sits on your bill so you can see it and change it.

The handset can be one you already have in a drawer. And because it is an eSIM, you can set the whole thing up this afternoon without going anywhere.

What a first plan actually needs

• Unlimited UK calls and texts. This is the important one. They should never be unable to ring you because something ran out. Calls and texts work even when data has gone.
• A small data allowance. Most younger children are on wifi at home and have no data at school. Small is usually plenty, and you can always increase it.
• No contract. You genuinely do not know what they will need in a year. Nothing should lock you in.
• Their own number. A real UK 07 number in their own right, so friends, school and family can reach them normally.
• Visible to you. One portal at /app where you see the line, the usage and the top-ups.

Reuse a handset you already have

A hand-me-down phone is a perfectly good first phone, and it takes the sting out of the inevitable drop. Before you hand it over:

1. 1Check it supports eSIM. Most phones from the last few years do. Does my phone support eSIM walks through how to check in under a minute.
2. 2Back up anything you still want off it, then do a full factory reset so it starts clean.
3. 3Set it up under their own account, not yours — it saves a tangle of shared logins later.
4. 4Put a case and a screen protector on it. Cheaper than the alternative.

An older handset with a fresh reset often feels new to a child who has never had one.

Set it up the same day

There is no SIM in the post and no shop trip. You add a line to your huddle, a QR code appears, you scan it with the camera on their phone, and the line is live in minutes.

1. 1

   Add a line for them

   In your huddle, add a member and pick a small data allowance. Unlimited UK calls and texts come as standard on every line.

2. 2

   Scan the QR code on their phone

   Their phone needs wifi for this bit. Point the camera at the code and follow the prompts. Full detail in how to set up your eSIM.

3. 3

   Send yourself a text from it

   Simple check that everything works, and it puts their new number in your phone at the same time. Get them to save yours too.

4. 4

   Do the boring safety bit

   Save a couple of emergency contacts, and make sure they know they can call 999 and reach you even with no data left.

Adding the line takes seconds and the discount recalculates for everyone. See adding a family member.

Keep it on your bill and keep half an eye on it

Because their line lives in your huddle, you handle the money and they handle the phone. That's the right split for a first phone: no pocket-money-versus-data-bill conversations, no surprise charges landing on a child.

It also means you can see usage in the portal without going through their phone. Checking a data figure is very different from reading their messages, and it is usually enough to spot when a plan no longer fits.

Adjusting as they become a teenager

Needs change fast and usually in one direction. The good news is nothing here is fixed:

• More data when they start travelling to school on their own, or when video and music become the point of the phone.
• A different handset later, without touching the plan. Their number moves with them to the new phone.
• Their own line in their own name eventually, if that is what they want. Or they stay in the huddle and quietly keep the family discount, which most do.
• A trip abroad needs a little planning rather than a leap of faith. See taking your family phone abroad.

A sensible starting point

If you want someone to just tell you what to pick: a reused handset, the smallest data allowance, unlimited UK calls and texts, on your bill, reviewed after a month. That covers almost every first phone.

You can start your huddle with your own line and add theirs in seconds — and every line you add makes all of them cheaper. The details are in cutting your family phone bill.

The first phone only has one job: they can always reach you, and you can always reach them.