Can you use an eSIM as a hotspot? Yes. Airalo’s help center says you can “as long as it is supported by your device and the network,” and Saily publishes its own hotspot steps for iPhone and Android. Turn on Personal Hotspot (iPhone) or Mobile Hotspot (Android) while the travel eSIM is your data line. When you do, don’t forget that everything your laptop downloads comes out of the same plan, and unlimited plans carry fair-use rules.
Last updated 30 October 2026.
What the providers actually say
Two help pages settle the basic question, so skip the forum threads and start there.
Airalo. Its article Can I use tethering (Personal Hotspot)? answers: “Yes, you can use your personal hotspot with your eSIM as long as it is supported by your device and the network.” On unlimited packages, its unlimited eSIM page adds that they “support tethering and hotspot use,” and that “all tethered usage is included in your daily high-speed data allowance.”
Saily. Its guide How to set up a hotspot with Saily eSIM walks through iPhone and Android, then sets the limits: “Data you share through a hotspot comes out of your eSIM’s data balance, the same as data used on your device. Saily’s fair use policy applies to hotspot use.”
So the answer is yes from both. Honestly, the real question isn’t whether you can. It’s how much data a laptop will eat once it’s connected.
Turn on Personal Hotspot on iPhone
Apple’s Personal Hotspot article gives the path: open Settings, then tap Personal Hotspot (or tap Cellular, then Personal Hotspot). Turn on Allow Others to Join.
Saily’s version matches: Settings, Mobile Data (or Cellular), Personal Hotspot, then the Allow Others to Join slider. When you set the password, pick something longer than the default; a café full of strangers can see your network name.
Three details from Apple worth knowing:
- Password. Tap Wi-Fi Password to set one “at least eight characters long,” using ASCII characters only.
- Device count. “The number of devices that can join your Personal Hotspot at one time depends on your carrier and iPhone model.”
- Carrier support. Apple says Personal Hotspot “requires a wireless carrier that supports Personal Hotspot.” For a travel eSIM, the provider’s help page is your answer.
Which line does it share? Apple’s Dual SIM guide is clear: “Instant Hotspot and Personal Hotspot use the line selected for cellular data.” Most people miss this. If your home line is still the data line, your laptop is roaming on your home carrier. Check Settings, Cellular, Cellular Data first.
APN, sometimes. If your Airalo eSIM needed a manual APN, Airalo says to type the same APN into the Personal Hotspot APN field, under Cellular Data Network, “all lower case, all one word,” and leave Username and Password blank.
Turn on Mobile Hotspot on Android
Samsung Galaxy. Samsung’s page Use a mobile hotspot on your Galaxy phone or tablet gives: Settings, Connections, Mobile Hotspot and Tethering, then the switch next to Mobile Hotspot. Saily’s Android steps use the same path. Samsung doesn’t name a One UI version and notes that screens “may vary by wireless service provider, software version, and phone model.”
Google Pixel and stock Android. Google’s page Share a mobile connection by hotspot or tethering on Android says some steps “only work on Android 14 and up.” Its quickest route: swipe down from the top of the screen, touch and hold Hotspot, and turn on Wi-Fi hotspot. Airalo’s help page gives the Settings path instead: Network & Internet, Hotspot & tethering, Wi-Fi hotspot. Airalo also says to “set an APN before enabling Hotspot & tethering” when your eSIM needs one.
Cables and Bluetooth. Google lists USB tethering and Bluetooth tethering in the same menu. One catch: “Mac computers can’t tether with Android by USB.”
As on iPhone, the hotspot shares whichever SIM carries mobile data. Make sure that’s the travel eSIM before you switch on. Don’t skip that check.
The limits most people miss
Sharing is allowed. Sharing without limit isn’t quite the same thing.
Every megabyte counts. Airalo’s data-saving article puts it plainly: “Sharing data via a hotspot consumes your mobile data plan.” A laptop behaves very differently from a phone. It syncs cloud folders, downloads system updates and loads full desktop pages. If you’ve never watched a laptop’s network meter on a capped connection, the first hour can be an eye-opener.
Airalo unlimited. The high-speed allowance “is 3GB per day at 20 Mbps,” after which “your connection continues at reduced speeds.” Full speed “resets automatically every 24 hours.” Tethered data counts toward that 3 GB.
Saily unlimited. Saily’s data plans article says each day brings a high-speed allowance; after you use it, “your speed drops to about 1 Mbps for the rest of that day,” resetting at midnight in the eSIM’s local time. Saily’s terms of service go further for unlimited plans: they “are not intended for commercial use, resale, or use by groups of individuals,” and the list of prohibited uses includes “excessive tethering or sharing of data via hotspot with multiple devices or users beyond occasional personal use.”
In practice, one person’s laptop for email and calls fits these rules. Running a whole team off one phone for a week doesn’t. Honestly, that’s what the fair-use wording is aimed at.
Sharing a connection isn’t sharing a plan. Saily makes the distinction itself. A hotspot lends nearby devices your phone’s internet; the eSIM stays on your phone. If two travellers each need data all day, separate plans are usually the cleaner answer.
A worked example: a work week in Lisbon
Numbers make the budget real. A remote worker spends five working days in Lisbon with a phone on a travel eSIM and a Windows laptop tethered to it.
The video-call figures below come from Zoom’s published bandwidth requirements. They’re recommended rates, so treat the results as a cautious ceiling rather than a measurement.
The conversion. Megabits per second × 3,600 seconds ÷ 8 gives megabytes per hour.
| Activity (Zoom’s figure) | Up + down | Per hour, roughly |
|---|---|---|
| Group call, high quality (1.0 Mbps down, 600 kbps up) | 1.6 Mbps | 720 MB |
| Group call, 720p HD (2.6 Mbps down, 1.8 Mbps up) | 4.4 Mbps | 1.98 GB |
| One-to-one call, high quality (600 kbps each way) | 1.2 Mbps | 540 MB |
| Audio only (60-80 kbps) | about 0.16 Mbps at most | about 72 MB |
The daily plan. One hour-long team call at Zoom’s high-quality setting: 0.72 GB. Email, documents and web pages on the laptop: we’ll allow 0.3 GB, an assumption, not a published figure. The phone’s own maps and messaging: another 0.5 GB, also an estimate. That’s about 1.5 GB a day.
Five days: 1.5 × 5 = 7.5 GB. Add a day’s worth for travel days and slack, and a 10 GB-sized budget looks comfortable.
Now switch the call to 720p HD. The same hour jumps to about 1.98 GB, so each day lands near 2.8 GB, and the week near 14 GB. Turns out video quality, not email, decides the plan size. On an Airalo unlimited package, that 720p hour alone would take about two-thirds of the 3 GB daily high-speed allowance.
The update trap. If you’ve not set the laptop’s Wi-Fi connection as metered, a large system update can arrive mid-week and swallow a day’s budget in one go.
Make a laptop behave on a hotspot
Windows. Microsoft’s metered connections page gives the path for Windows 11: Settings, Network & internet, Wi-Fi, select the hotspot network, turn on Metered connection. Windows Update then downloads only priority updates.
iPad. Apple’s Low Data Mode article lets you turn on Low Data Mode per Wi-Fi network: Settings, Wi-Fi, the info button next to the network, then Low Data Mode.
Calls. Skip the HD toggle in your video app unless you need it. Most people don’t. Audio-only meetings cost a fraction of the data.
Cloud sync. Pause it before you connect. Resume it on hotel Wi-Fi. Don’t trust the laptop to be careful on its own; it assumes every network is a broadband line.
Watch the meter. Check remaining data in the provider’s app each evening. Our guide on how to check eSIM data usage shows where each provider puts it.
If the hotspot won’t work
The toggle is missing or greyed out. When you see this, check the travel eSIM is the data line and that it’s connected. Then restart. Apple’s article suggests turning on Maximize Compatibility in Personal Hotspot settings if devices can’t join.
The laptop connects but loads nothing. Check the APN. Airalo shows it in the app and says to enter it in the hotspot APN field on iPhone, or before turning on the hotspot on Android.
It’s slow. On an unlimited plan, you may have used the day’s high-speed allowance. Saily’s rate after that is about 1 Mbps. Wait for the reset, or buy a regular plan for the same destination, which Saily lists as the way to get full speed back early.
If you haven’t installed the eSIM yet, start with our iPhone install guide or the Android activation guide.
FAQ: eSIM hotspot questions
Does a travel eSIM allow tethering?
Usually, yes. Airalo says you can use Personal Hotspot with its eSIMs when your device and the network support it, and Saily publishes hotspot steps for iPhone and Android. Check your own provider’s help page before relying on it.
Does hotspot data count against my eSIM plan?
Yes. Saily says shared data comes out of your eSIM’s balance, the same as data used on the phone, and Airalo says sharing via a hotspot consumes your plan. On Airalo unlimited packages, tethered data counts toward the 3 GB daily high-speed allowance.
Can I share an unlimited eSIM with friends through a hotspot?
Occasionally, for personal use. Saily’s terms bar unlimited plans from “use by groups of individuals” and excessive hotspot sharing with multiple users, and Airalo applies its fair usage policy to tethered data. Separate plans suit regular sharing better.
How much data does a laptop use on a hotspot?
It depends almost entirely on video. Using Zoom’s recommended rates, an hour-long group call at high quality works out to about 720 MB, and at 720p about 2 GB. Email and documents use far less.
The short version
- Yes: Saily and Airalo both allow hotspot use, with your device and network’s support.
- iPhone: Settings, Personal Hotspot, Allow Others to Join. Galaxy: Settings, Connections, Mobile Hotspot and Tethering.
- The hotspot shares whichever line carries mobile data, so set the travel eSIM first.
- Shared data comes out of the same plan; unlimited plans have daily high-speed caps and fair-use rules.
- Budget by video calls, set the laptop’s connection as metered, and check the meter daily.