Does the OnePlus 12 support eSIM?

What the OnePlus 12 does with a travel eSIM

The OnePlus 12 is a phone, so the travel profile is a data line and your existing line stays the voice line. Calls and texts to your usual number keep arriving while Orbislo carries the browsing.

Installing writes the profile. Nothing is spent until it attaches to a network at the destination, so an install three weeks early costs exactly the same as one at the gate. Do it at home, on wifi, while you still have a connection to fix anything.

Storage and active lines

The OnePlus 12 holds 5 profiles, which is at the low end of everything we have checked. Delete the dead profiles from old trips before you install, or the sheet will simply refuse.

Active is how many lines run at the same time, and on the OnePlus 12 that is 2. Storage is how many profiles sit on the device waiting, and that is the number that runs out without warning.

Each destination's line installs in one tap from the Orbislo app, and while it is valid every refill lands on that same line. Most of Europe runs on a single line, so a trip through several neighbouring countries takes one slot rather than one per country.

• Home line: calls and texts, so bank codes still arrive on your usual number.
• Orbislo line: mobile data, with roaming switched on.
• Automatic data switching: off, or the phone borrows the expensive line in a tunnel.

5G on the OnePlus 12, and where it will not appear

The OnePlus 12 has a 5G radio and the travel profile uses it. Where a partner network runs 5G, you get 5G, on the same profile and at no extra cost.

88 of our 197 destinations are 4G only on the networks we buy from. On those the icon reads LTE whatever the handset can do, and no setting changes it.

Speed belongs to the network rather than to the profile.

What goes wrong on the OnePlus 12, and the fix

Data roaming has to be switched on for this line. Your profile is issued outside the country you are standing in, so the device treats every attachment as roaming. Leave it off and the OnePlus 12 finds a network and then refuses to use it.

If the profile will not download at all, the order refunds automatically inside 60 seconds, with no ticket. Install again from the same order, because the profile is reissued to your account rather than lost.

On this device the sequence is Settings, Network and internet, SIMs, the Orbislo line, Roaming on. Then set Orbislo as the SIM for mobile data and turn off automatic data switching.

• No service on the Orbislo line: roaming is off on that line.
• Connected but nothing loads: mobile data still points at the home line.
• Works, then stops after an hour: automatic data switching moved you back.
• Still searching: airplane mode on for 20 seconds, off, then restart.

Your SIM tray, and tethering

Your physical SIM stays exactly where it is. Adding an eSIM does not touch the tray, does not wipe the card and does not need it taken out. Remove it and you lose your own number, which is the opposite of the point.

Tethering is included on every Orbislo plan at no extra charge. The OnePlus 12 can share the travel data with a laptop, a tablet or a watch, and nothing behind the hotspot needs a profile of its own.

What an Orbislo plan does once it is installed

Data never expires. A gigabyte you do not use in Lisbon is still there in Bangkok next year, metered plans have no throttle, and every customer gets 100 MB of free rescue data once a month on the line in use when the balance runs out. Unlimited runs full speed to 2 GB a day and then 1 Mbps.

One balance pays in all 197 destinations, and most of Europe runs on a single line, so a rail trip through three neighbouring countries is one install and one balance rather than three of each. Refills arrive on the line you already have, with no new plan or expiry date. Where a destination has more than one partner network, the line can move between them without you touching a setting.

The OnePlus 12 at a glance

Stored is how many profiles the device keeps. Active is how many run at the same time. Checked on this model rather than assumed from the brand.

OnePlus 12 eSIM questions