Apple’s first foldable phone, the iPhone Duo, opened for pre-orders on October 16 and reaches stores on October 23. For travelers, the headline isn’t the folding screen. It’s the fact that the iPhone Duo has no physical SIM slot in any country. Apple says plainly on its UK product page that “iPhone Duo is eSIM-only worldwide.”
US travelers have lived with eSIM-only iPhones since the iPhone 14 in 2022, so this isn’t new for most American buyers. What’s different is that Apple has now dropped the SIM tray on a model everywhere it sells, including Europe and other markets where its regular iPhones still take a nano-SIM. That matters if you’re used to buying a cheap local SIM card at the airport, or if you were counting on picking up an overseas version of the phone.
Key details
- Price: Starts at $1,999 in the US, according to Apple’s September 9 press release.
- Dates: Pre-orders opened Friday, October 16, in more than 70 countries and regions. Sales start Friday, October 23, with 28 more countries and regions following on October 30.
- SIM: eSIM only, with no physical SIM support anywhere. Apple says the design “saves internal space to maximize battery capacity.”
- Multiple lines: As with recent iPhones, Apple’s support pages say supported models can have two eSIMs active at once, so you can keep your US number on and add a data plan for your destination.
- Satellite: Apple says the Duo includes its satellite features for use when you’re outside cellular and Wi-Fi coverage. Which features are available, and whether they’re free, can vary by country and may change, so check Apple’s site before you rely on them.
Who this affects and what to do
If you’re thinking about an iPhone Duo and you travel internationally, a few things are worth sorting out before your next trip:
- Make sure the phone is carrier-unlocked. Apple’s travel eSIM guide says your iPhone has to be unlocked to use another carrier’s eSIM. Check Settings > General > About > Carrier Lock. It should say “No SIM restrictions.” Phones bought on a carrier installment plan are often locked at first.
- Plan how you’ll get data. Your options are your US carrier’s international plan or day pass, a data-only travel eSIM app (Airalo, Holafly, Saily, Nomad, Ubigi and others), or a local carrier’s eSIM. Some local carriers still sell tourist plans only as physical SIM cards, and those won’t work in this phone.
- Install before you fly. Apple notes that eSIM setup generally needs Wi-Fi or another connection. Downloading a travel eSIM at home, and switching it on when you land, avoids hunting for airport Wi-Fi.
- Watch your home line. If you leave your US line on for calls and texts, set the travel eSIM as your cellular data line. Apple warns you may still be charged roaming fees on your home eSIM.
Travel eSIMs to use with the iPhone Duo
With no SIM tray, a travel eSIM is the easiest way to get affordable data abroad without paying your US carrier’s international day-pass rates. You keep your regular line on the phone for calls and texts, and add a data-only eSIM for the trip. Here are three well-known options.
Airalo (our pick)
We use and recommend Airalo, and we’ve had great luck with it on our own trips. Airalo sells local, regional and global eSIMs covering more than 200 destinations, and its site lists plans in popular countries like Italy, Spain, France, the UK and Japan starting at $4 (as of October 2026; data amounts and days vary by plan). You buy, install and top up from the Airalo app, and Airalo says the validity period starts when the eSIM activates, which on most plans is when it first connects to a network at your destination. That means you can install it at home before you fly.
Holafly
Holafly is best known for unlimited-data plans and covers more than 200 destinations. Its per-trip eSIMs are data-only (Holafly’s FAQ says they can’t make or receive calls or texts). For frequent travelers it also sells monthly plans starting at $49.90 a month, including an Unlimited plan with hotspot use and a local number for incoming texts (as of October 2026). Unlimited data is handy for heavy users, but it usually costs more than buying only the data you need.
Saily
Saily is run by Nord Security, the company behind NordVPN. It covers more than 200 destinations, with a Europe plan covering 35 countries and a Global plan covering 110-plus. Plans range from 1 GB to unlimited and are data-only, and Saily advertises built-in blocking of malicious sites and ads. It also offers an optional US phone number add-on for calls and texts for $1.99 a month (as of October 2026).
Before you buy any travel eSIM: make sure your iPhone is carrier-unlocked, confirm the iPhone Duo appears on the provider’s compatible-device list, and check that the plan covers every country on your itinerary. Prices and plan details change often, so compare on each provider’s site before you go. Points Capital has no affiliate relationship with these companies.
Lockdown Mode: how we use it abroad
A new phone is a good time to learn about one of the iPhone’s most powerful and least-used security features: Lockdown Mode. We turn it on when we travel to countries with questionable civil liberty protections, where journalists, activists, business travelers and government-connected visitors are more likely to be targeted by spyware. Apple describes it as an optional, extreme protection for “the very few individuals who, because of who they are or what they do, might be personally targeted” by sophisticated digital threats. Most people will never need it, but it costs nothing to switch on for a trip.
What Lockdown Mode protects against
It works by shrinking your phone’s “attack surface,” turning off the features that spyware most often exploits. According to Apple:
- Messages: Most attachment types are blocked (some images, video and audio still come through), and links and link previews are turned off.
- Web browsing: Certain complex web technologies are blocked, so some websites load slowly or don’t work quite right.
- FaceTime: Incoming calls are blocked unless you’ve called that person in the past 30 days.
- Invitations and sharing: Invites to Apple services are blocked unless you’ve invited that person before. Shared albums are removed, and location data is stripped from photos you share.
- Wired connections: Your iPhone must be unlocked before it will connect to a computer or accessory, which helps against someone plugging into your phone at a border or hotel.
- Wi-Fi and cellular: The phone won’t automatically join unsecured Wi-Fi networks, and 2G and 3G cellular are turned off.
- Configuration profiles: Profiles can’t be installed, and the phone can’t be enrolled in device management while Lockdown Mode is on.
Phone calls, plain-text messages and emergency features like SOS still work normally.
How to turn it on
Go to Settings > Privacy & Security > Lockdown Mode > Turn On Lockdown Mode, then restart. It needs iOS 16 or later, and Apple recommends updating to the latest software first. You need to turn it on separately on your iPad and Mac. Turning it on for your iPhone also turns it on for a paired Apple Watch. If a website or app you trust stops working, you can exclude it, but each exclusion lowers your protection.
What it doesn’t do: Lockdown Mode isn’t a VPN, and it doesn’t hide your browsing from the local network or mobile carrier. It also doesn’t change what border officials can ask to see. Pair it with a reputable, independently audited no-logs VPN, a strong passcode and up-to-date software. We turn it on before we leave home, so the phone is already protected when it lands on a local network or eSIM.
Source: Apple Support: About Lockdown Mode.
Go deeper: read our full guide, iPhone Lockdown Mode for Travel: What It Blocks, When We Use It and How to Turn It On.
Our take
For most US travelers this is a non-event. If you already use an iPhone 14 or later bought in the US, you’re on eSIM already, and travel eSIMs are usually easier than buying a SIM card at an airport kiosk. eSIM also has a security upside. Apple points out that it can’t be pulled out of a lost or stolen phone.
The downsides are real, though. You lose the fallback of popping in a local SIM when an eSIM app fails or a country’s carriers don’t sell eSIMs to visitors. Moving your number to a new phone also depends on your carrier’s eSIM transfer working smoothly. And a $1,999 phone you’ll be unfolding in airports and taxis is a strong argument for travel insurance or a device protection plan. If you often visit places where eSIM support is spotty, a phone with a SIM tray, or a cheap backup phone, is still the more flexible choice. Everyone else can treat this as Apple confirming where phones are heading anyway.
Pricing and dates are as of October 2026 and may change. Check Apple’s site before buying.
Source: Apple Newsroom: Apple unveils iPhone Duo; Apple iPhone Duo product page and FAQ; Apple Support: Use eSIM while traveling internationally with your iPhone
