Mobile Hotspot UK Guide 2026: What It Is, How It Works, Data Usage, iPhone Personal Hotspot, and Can You Hotspot a TV?

July 10, 2026 George 0 Comments

A mobile hotspot lets you share your smartphone’s mobile data connection with other devices — laptops, tablets, smart TVs, and other phones — turning your phone into a portable Wi-Fi router. Whether you are working from a café, travelling, or your home broadband is down, a mobile hotspot provides internet access wherever you have a mobile signal. This guide covers everything UK users need to know: how a mobile hotspot works, the difference between hotspot and tethering, how much data it uses, iPhone Personal Hotspot setup, whether you can hotspot a TV, and how to connect a laptop.

For dedicated portable hotspot devices (MiFi) that work independently from your phone, see our guide to the best mobile hotspot devices UK — 4G and 5G MiFi devices compared.

What Is a Mobile Hotspot?

A mobile hotspot is a feature on smartphones — and also a dedicated portable device — that shares a mobile data (4G or 5G) internet connection via Wi-Fi with nearby devices. When you enable the hotspot feature on your phone, your phone broadcasts a Wi-Fi signal that other devices can connect to, using your phone’s mobile data allowance to access the internet.

Mobile Hotspot Feature	Detail
What it does	Shares your phone’s mobile data as a Wi-Fi connection
Also called	Personal hotspot, Wi-Fi hotspot, tethering (slightly different — see below)
Data source	Your phone’s mobile data plan (4G or 5G)
Devices that can connect	Laptops, tablets, other phones, smart TVs, game consoles
Maximum connections	Typically 5-10 devices simultaneously (varies by phone)
Data usage	Counts against your monthly mobile data allowance
Works via	Wi-Fi, Bluetooth, or USB cable (USB tethering)

Hotspot vs Tethering — What Is the Difference?

Hotspot and tethering are related but technically different:

Mobile hotspot (Wi-Fi tethering): Your phone broadcasts a Wi-Fi signal that multiple devices can connect to wirelessly. The most common method — turn on your phone’s hotspot and connect other devices to it just as you would connect to a normal Wi-Fi router.
USB tethering: You connect your phone to a laptop via a USB cable. The laptop accesses your phone’s mobile data through the cable. More reliable connection, charges your phone while tethering, but only works with one device at a time.
Bluetooth tethering: Shares your phone’s data via Bluetooth. Slower than Wi-Fi hotspot and shorter range, but uses less battery than Wi-Fi broadcasting.

In everyday UK usage, ‘hotspot’ most commonly refers to Wi-Fi hotspot (the wireless broadcast method). When people say they are ‘tethering,’ they often mean any form of sharing — but technically, tethering is the broader term that includes USB and Bluetooth methods.

How to Turn On Mobile Hotspot on iPhone (Personal Hotspot)

Apple calls the hotspot feature Personal Hotspot on iPhone. To enable it:

iPhone Personal Hotspot — Settings Method

Open Settings on your iPhone
Tap Personal Hotspot
Toggle Allow Others to Join to on (green)
Note the Wi-Fi Password shown — you will need this to connect other devices
On the device you want to connect, go to Wi-Fi settings and select your iPhone’s name from the available networks
Enter the Wi-Fi Password when prompted

iPhone Personal Hotspot — Control Centre Method

Swipe down from the top-right corner (Face ID iPhones) or swipe up from the bottom (Touch ID iPhones)
Long-press the network tile (top-left box)
Tap the Personal Hotspot icon to enable it

What Is a Personal Hotspot on iPhone?

Personal Hotspot is Apple’s branded name for the iPhone’s mobile hotspot feature. It works identically to Android hotspot — it shares your iPhone’s mobile data connection via Wi-Fi, Bluetooth, or USB. The Personal Hotspot setting also shows how many devices are currently connected.

Note: Personal Hotspot availability depends on your mobile network and tariff. Some UK networks restrict hotspot use to specific plans. Check with your network (EE, O2, Vodafone, Three, Sky Mobile, etc.) if Personal Hotspot appears greyed out.

How to Turn On Mobile Hotspot on Android

Open Settings → Network and Internet (or Connections on Samsung)
Tap Hotspot and Tethering (or Mobile Hotspot on Samsung)
Toggle Wi-Fi Hotspot to on
Tap the hotspot name to see or change the network name (SSID) and password
Connect other devices to the hotspot name using the password shown

On Samsung Galaxy phones: Settings → Connections → Mobile Hotspot and Tethering → Mobile Hotspot. Samsung’s interface also shows connected devices and data used through the hotspot in real time.

Does Hotspot Use Data? How Much?

Yes — mobile hotspot uses your phone’s mobile data allowance. Every byte of data transferred through your hotspot counts against your monthly data plan. There is no separate hotspot data allocation on most UK plans — your hotspot and phone data share the same allowance.

Activity	Approximate Data Usage Per Hour
Web browsing (standard pages)	~60-100 MB/hour
Video streaming (SD 480p)	~250-400 MB/hour
Video streaming (HD 1080p)	~1.5-3 GB/hour
Video streaming (4K)	~7-15 GB/hour
Video calls (Zoom/Teams)	~500 MB-1.5 GB/hour depending on quality
Music streaming	~40-150 MB/hour depending on quality
Online gaming (console/PC)	~40-200 MB/hour (but downloads are much higher)
Email and messaging	~1-5 MB/hour

Practical advice: video streaming is the biggest data consumer. If you are using your hotspot for a laptop doing work tasks (browsing, documents, email), you will use far less data than if connected devices are streaming Netflix or YouTube. Monitor your data usage in your phone’s hotspot settings to avoid exceeding your allowance.

Can You Hotspot a TV?

Yes — you can connect a smart TV to your phone’s mobile hotspot. Here is how:

Connect Smart TV to Phone Hotspot

Enable your phone’s hotspot (see above)
On your smart TV: go to Settings → Network → Wi-Fi
Select your phone’s hotspot name from the available Wi-Fi networks
Enter your hotspot password
Your TV will connect to your phone’s mobile data — all streaming apps (Netflix, BBC iPlayer, Disney+, etc.) will work

Data Warning for TV Hotspot

Streaming TV via a mobile hotspot uses significant data — a single hour of Netflix in HD uses approximately 1.5-3 GB. A film at 1080p can use 4-8 GB. If you have a limited mobile data plan (under 20GB), streaming TV through a hotspot will deplete it quickly. This is most practical on unlimited data plans or for occasional use rather than regular TV viewing.

TV Hotspot Limitations

Smart TVs that connect to Wi-Fi work with hotspot — Roku, Amazon Fire TV, Samsung Smart TV, LG Smart TV, Sony Bravia, etc.
Non-smart TVs without Wi-Fi cannot connect wirelessly — you would need a streaming stick (Amazon Fire Stick, Roku Stick, Google Chromecast) plugged into the TV
Some streaming services detect mobile data connections and may reduce quality

How to Connect a Laptop to Your Phone Hotspot

Windows Laptop

Enable hotspot on your phone
On your Windows laptop: click the Wi-Fi icon in the taskbar (bottom-right)
Select your phone’s hotspot name from the available networks
Click Connect and enter your hotspot password
Windows will remember the hotspot and reconnect automatically next time

MacBook

Enable hotspot on your phone
On your MacBook: click the Wi-Fi icon in the menu bar
Select your phone’s hotspot name
Enter the password — MacBook connects and remembers for future sessions

Via USB (More Reliable)

Connect your phone to your laptop using a USB cable
On iPhone: enable Personal Hotspot and trust the computer if prompted
On Android: Settings → Hotspot and Tethering → USB Tethering → toggle on
Your laptop treats the phone as a network connection — no Wi-Fi password needed

Mobile Hotspot on UK Networks — What Plans Allow It

All major UK networks allow hotspot use on most plans, but there are exceptions:

Network	Hotspot Policy
EE	Hotspot included on all plans — data shared from main allowance
O2	Hotspot included — O2 also has O2 WiFi public hotspot network
Vodafone	Hotspot included on all plans — 5G hotspot on 5G plans
Three (3)	Hotspot included — unlimited data plans great for heavy hotspot use
Sky Mobile	Hotspot included — data Piggybank system applies
giffgaff	Hotspot included on most plans
iD Mobile	Hotspot included — uses Three network
SMARTY	Hotspot included — uses Three network; unlimited plans very competitive

If hotspot appears greyed out on your iPhone or Android despite being on a plan that should include it, contact your network — some older or budget plans may require hotspot to be specifically enabled on your account.

How Much Battery Does Mobile Hotspot Use?

Mobile hotspot is one of the most battery-intensive phone functions. Broadcasting a Wi-Fi signal, maintaining the mobile data connection, and processing data for multiple devices simultaneously can drain a phone battery significantly faster than normal use. Approximate battery drain comparison:

Normal phone use (social media, browsing): ~10-15% battery per hour
Mobile hotspot (light use, 1-2 devices): ~20-30% battery per hour
Mobile hotspot (heavy use, multiple devices, video streaming): ~35-50% battery per hour

To extend hotspot battery life: reduce screen brightness, keep the phone plugged in via USB while using hotspot, reduce the number of connected devices, and use USB tethering (cable) instead of Wi-Fi broadcast when connecting just one laptop.

If your mobile hotspot is not working, see our step-by-step fix guide for mobile hotspot not working UK — all fixes for iPhone, Android, and Windows laptop.

For official guidance on Personal Hotspot from Apple, see the Apple Support — Use Personal Hotspot on iPhone. For checking your UK network’s hotspot policy, see your network’s support pages — for example EE — using your phone as a hotspot.

Mobile Hotspot Security — Keeping Your Connection Safe

Change the Default Password

Your phone’s hotspot will have a default Wi-Fi password — this is visible in the hotspot settings. Change it to something stronger (minimum 12 characters, mix of letters and numbers) to prevent unauthorised access to your mobile data. Anyone nearby could otherwise detect and connect to your hotspot if the password is the default or weak.

Use WPA2 or WPA3 Encryption

Modern phones default to WPA2 or WPA3 encryption for hotspot connections — check your hotspot settings to ensure this is enabled. Avoid using ‘Open’ (no password) hotspot mode in public places as anyone can connect and use your data or intercept your traffic.

Monitor Connected Devices

Both iPhone’s Personal Hotspot and Android’s hotspot settings show connected devices. Regularly check which devices are connected — if you see unfamiliar devices, change your hotspot password immediately. On iPhone, Personal Hotspot shows the count of connected devices in the Control Centre.

Hotspot in Public Places

Using your phone hotspot in a café, library, or public space is generally safer than using public Wi-Fi (which is shared infrastructure potentially intercepted by others). Your hotspot connection is encrypted between your phone and connected devices. However, be aware that the hotspot name (SSID) is visible to everyone nearby — use a neutral name rather than your full name.

Mobile Hotspot for Gaming UK

Can You Game Through a Mobile Hotspot?

Yes — online gaming through a mobile hotspot is possible but latency (ping) is the key concern rather than speed. Gaming requires low latency (under 80ms ideally) rather than high bandwidth. 4G connections typically have 20-70ms latency; 5G connections can achieve 10-30ms. Avoid satellite broadband (200ms+ latency) for gaming; mobile hotspot on 5G is a viable gaming connection.

Download Warning

Game downloads are a different matter — a single modern game can be 50-150 GB. Downloading games via a mobile hotspot will deplete most data plans in one session. Use a capped data plan awareness: a 100 GB game download costs approximately 100 GB of your mobile data allowance regardless of plan speed.

One often-overlooked aspect of mobile hotspot use in the UK is the difference in performance between indoor and outdoor use. 4G and 5G signals can degrade significantly indoors depending on building construction materials — thick concrete walls, steel reinforcement, and low-E glass windows all attenuate mobile signal. If your hotspot connection is unreliable indoors, try positioning your phone near a window to improve signal reception. External Wi-Fi signal (from your phone to the connected device) is unaffected by building materials, but the upstream mobile signal quality determines your overall connection speed.

Bottom Line


What is a mobile hotspot?	Your phone sharing its mobile data as a Wi-Fi connection
Hotspot vs tethering	Hotspot = Wi-Fi broadcast; tethering includes USB and Bluetooth too
iPhone Personal Hotspot	Settings → Personal Hotspot → Allow Others to Join
Android hotspot	Settings → Network → Hotspot and Tethering → Wi-Fi Hotspot
Does hotspot use data?	Yes — counts against your monthly mobile data allowance
Data per hour streaming HD	1.5–3 GB/hour — video is the biggest consumer
Can you hotspot a TV?	Yes — go to TV Wi-Fi settings and connect to your phone’s hotspot
Battery drain	20–50% per hour depending on load — plug in if possible
UK networks allow hotspot?	Yes — all major networks include hotspot on standard plans

Frequently Asked Questions

What is a mobile hotspot?

A mobile hotspot is a feature on smartphones that shares the phone’s mobile data connection (4G or 5G) as a Wi-Fi network. Other devices — laptops, tablets, TVs, and other phones — can connect to this Wi-Fi signal and use the internet through your phone’s data plan. It is also called Personal Hotspot on iPhone or Wi-Fi Tethering on Android.

Does using a hotspot use data?

Yes — every device connected to your mobile hotspot uses your phone’s mobile data allowance. There is no separate hotspot data allocation on UK plans. Streaming video is the biggest data consumer — HD streaming uses approximately 1.5-3 GB per hour. For work tasks (browsing, email, documents), data usage is much lower.

What is a personal hotspot on iPhone?

Personal Hotspot is Apple’s name for the iPhone’s mobile hotspot feature. It shares your iPhone’s mobile data as a Wi-Fi connection that other devices can join. Enable it via Settings → Personal Hotspot → Allow Others to Join. The password is shown in the Personal Hotspot settings screen.

Can you connect a TV to a mobile hotspot?

Yes — any smart TV with Wi-Fi capability can connect to a mobile hotspot. Go to your TV’s Wi-Fi settings, select your phone’s hotspot name, and enter the hotspot password. Data warning: HD streaming uses 1.5-3 GB per hour, so this is most practical on unlimited or high-data mobile plans.

What is the difference between hotspot and tethering?

A mobile hotspot (Wi-Fi tethering) broadcasts a Wi-Fi signal from your phone that multiple devices connect to wirelessly. Tethering is the broader term that includes: Wi-Fi hotspot, USB tethering (phone connected to laptop via cable), and Bluetooth tethering. USB tethering is more reliable and charges the phone but only connects one device at a time.