How Long Does Hotspot Last? Hours per GB and Battery on a Trip

Abroad, that gigabyte can come from a travel plan instead of your home line. Every HelloRoam eSIM plan works as a hotspot on phones that allow it.

Every rate in the table below comes from the app maker's own help page, turned into data per hour and time per GB. For a mix of apps over a whole trip, you can work out your trip's data needs in our calculator.

One GB of hotspot data lasts from 8 minutes of 4K Netflix to 23 hours of Spotify on Normal

Each row below is one device doing one thing for an hour. Netflix gives its figures per device, so two laptops streaming at once use twice as much, and the time your plan lasts halves.

We read each rate on the maker's own page on October 26, 2026: Spotify's audio quality guide, Zoom's system requirements, Microsoft's Teams network guide and Netflix's data usage help. The math uses 1 GB = 1,000 MB.

Zoom and Microsoft publish recommended bandwidth, the rate a call is planned around, not a meter reading. Both adjust to your connection. Microsoft says real use in a Teams call varies with the video layout, resolution and frame rate, so a real call can come in under or over these figures. Both list upload and download, and both count: Microsoft explains that a provider charging by data used counts the data your device sends and receives.

Web browsing has no per-hour figure, because it depends on how many pages you open. The HTTP Archive's 2025 Web Almanac puts the median desktop inner page at 2 MB, so 1 GB covers roughly 500 page loads of that size on a laptop.

Every device on your hotspot draws from one data plan

A hotspot doesn't add data. Apple describes Personal Hotspot as a temporary Wi-Fi network built on the phone's cellular data connection. Samsung notes that while the hotspot is on, the phone's own apps use that same data service. The phone, your laptop and a travel partner's tablet all draw from one plan.

More devices drain it faster. Google says an Android phone can share its data with up to 10 other devices over Wi-Fi. On iPhone, Apple says the number that can join at once depends on your carrier and iPhone model.

Make the travel eSIM the line your hotspot shares

If your phone holds your home line and a travel eSIM, the hotspot shares whichever line carries cellular data. Apple's iPhone guide says that with two SIMs, Personal Hotspot uses the line you select for cellular data.

On iPhone, open Settings, tap Cellular, then Cellular Data, and pick the travel line. On a Pixel, open Settings, tap Network & internet, then SIMs, and under Your primary SIMs tap Mobile data and choose the travel eSIM.

Apple also has a switch called Allow Cellular Data Switching. With it on, the iPhone can use cellular data from both plans, depending on coverage and availability. Leave it off if you want every hotspot megabyte to come from the travel plan. The trade-off, per Apple: cellular data stops working while you're on a call on your other number.

Sharing your home line abroad is a different deal. Google notes that some carriers limit or charge extra for tethering, and Samsung warns that roaming while you use the phone as a hotspot may add data charges.

Our plan pages listed no extra fee for hotspot sharing when we read them in October 2026, and the data your laptop uses comes out of your plan. Install the eSIM at home with our step-by-step eSIM install guide, and check that your phone supports eSIM before you buy.

If the laptop eats into the plan faster than you expected, top up in the HelloRoam app before the plan's end date. The new data joins what's left on the same eSIM, with no new QR code. An expired eSIM can't take a top-up, so check the end date on the plan's card.

If the laptop joins the hotspot but nothing loads, check the phone's own connection first. Start with our eSIM troubleshooting guides, which begin from what your phone shows.

Laptops use hotspot data in the background

A laptop joins your hotspot from its list of Wi-Fi networks, and Microsoft says Windows sets Wi-Fi networks to non-metered by default, so background updates and app syncing aren't held back. Change these settings once, before the trip:

Windows 11: open Settings, select Network & internet, then Wi-Fi, pick the hotspot's network and turn on Metered connection. On Windows 10, pick the network, select Properties and turn on Set as metered connection. Microsoft says some Windows updates then won't install automatically.

Mac: choose Apple menu, then System Settings, click Wi-Fi, click Details for the hotspot's network and turn on Low data mode, which Apple says reduces your data use over that network.

Mac auto-join: in the same Wi-Fi settings, set Ask to join hotspots to Ask To Join or Never. With Automatic, which macOS Tahoe 26 and later offer, a Mac signed in to your Apple Account joins your iPhone's hotspot whenever no known Wi-Fi network is found, so it can move onto your phone the moment the hotel Wi-Fi drops.

iPad or a second iPhone: open Settings, tap Wi-Fi, tap the Info button next to the hotspot and turn on Low Data Mode. Apple says this turns off automatic downloads and backups and pauses updates for services such as iCloud Photos.

Charging from the laptop: Apple warns that if you leave Personal Hotspot on, the computer might connect to it every time you plug the iPhone in to charge. Turn the hotspot off when you're done.

Apple adds that iCloud backups and uploads to iCloud Photo Library might not work over Personal Hotspot, so save big photo uploads for hotel Wi-Fi.

Netflix, Spotify and Zoom settings stretch each GB

Netflix keeps a data setting on each profile in your account. In a browser, go to your Account page, select Profiles, choose a profile, then Playback settings, and pick Low or Medium. Netflix says that once you set this, streaming on mobile devices won't go above it either. In the phone app, Save Data gives about 6 hours per GB, against about 4 hours on Automatic. That app setting sits under Cellular Data Usage, so a tablet on your hotspot's Wi-Fi follows the profile setting instead.

In Spotify's desktop app, click your profile picture, select Settings and lower the setting under Audio Quality. The web player can't change quality, and on Premium it streams at AAC 256kbit/s, about 115 MB an hour, so the app on Normal uses less. On a tablet or phone joined to your hotspot, Spotify keeps separate quality settings for Wi-Fi and cellular, so check the Wi-Fi one under Settings and privacy, then Media Quality.

On calls, the camera is the big cost. Zoom recommends 1.2 Mbps each way for a one-on-one 720p call but lists 60 to 80 kbps for audio, so turn video off when you don't need it. A big gallery costs more to receive: Zoom lists 2.0 Mbps for 25 video tiles and 4.0 Mbps for 49.

A phone hotspot runs until the battery or auto-off stops it

None of the Apple, Google or Samsung help pages we read sets a time limit on a hotspot or says how many hours one runs on a charge. What ends a session is data, battery or an auto-off setting.

Battery goes fast. Samsung's hotspot guide says mobile hotspots consume battery power, and Google's advice is to plug in your devices while tethering and turn tethering off when you're done.

Auto-off saves battery while nothing is connected, and each phone handles it a little differently.

Pixel: Google's Pixel hotspot help says the hotspot turns off when no devices are connected, to save battery. To change it, open Settings, tap Network & internet, then Hotspot & tethering, then Wi-Fi hotspot, and tap Turn off hotspot automatically.

Samsung Galaxy: go to Settings, tap Connections, then Mobile Hotspot and Tethering, then Mobile Hotspot and the Information section. Tap Advanced, then Turn off when no device connected for, and pick a time.

iPhone: Apple's steps say to stay on the Personal Hotspot screen until the other device has connected. Over a USB cable, Apple says Personal Hotspot stays active while the iPhone is connected to the computer, which suits a long work session with the laptop charging the phone.

If you'd rather spare the phone altogether, a dedicated hotspot runs on its own battery. Our guide to portable Wi-Fi hotspot devices and plans compares the hardware and what it costs.

Size a trip's hotspot data with a 20% margin

Plan around your busiest day, then add a margin. Say you take a one-on-one Zoom call in 720p HD for an hour each workday of a five-day work trip. At Zoom's recommended rate each call moves about 1.08 GB, so the week comes to about 5.4 GB. Buy at least 6.5 GB, which adds 20% for busy days.

That covers the calls only. Add your maps, browsing and music in the data calculator before you choose a plan size. For music, maps and video on one plan, see how long 1GB of data lasts per app.

Then watch the meter as you go. On iPhone, Settings, then Cellular, shows how much data each app has used, and with Dual SIM it shows the use on the number you picked for cellular data.