eSIM for UK from S$4.43, Singapore

HelloRoam is a global eSIM provider offering instant mobile data in 185+ countries. Buy prepaid travel eSIM plans with no extra fees, no contracts, and instant activation on any eSIM-compatible device.

UK eSIM with instant activation - international travel data plans - no extra fees - 5G mobile network

United Kingdom eSIM data plans for overseas travel

Package details

Affordable eSIM for United Kingdom, starting from S$4.43. Local 4G LTE and 5G data on trusted carrier networks in United Kingdom. Works on all eSIM compatible phones.

Pick a United Kingdom eSIM plan and skip steep overseas data charges. Whether you are exploring busy cities, beach resorts, or countryside towns, HelloRoam keeps you online throughout your trip. Plans start from S$4.43 per day with no hidden fees and no contract. Pay in SGD and activate via QR code before you travel. One account covers 185+ countries through 203+ carrier networks.

Buy a United Kingdom e SIM from S$4.43. Set up before your flight from Changi, no store visit, no SIM swap. Keep your current number active on dual SIM. Works on any e-sim compatible iPhone or Android.

Unlimited Data

5GT-Mobile UK

Choose number of eSIMs

1 eSIM

How long will you be away?

Choose durationHow many days?

7 Days

How long will you be away?

1 day
2 days
3 days
4 days
5 days-8%
6 days
7 days
8 days
9 days
10 days-11%
11 days
12 days
13 days
14 days
15 days
16 days
17 days
18 days
19 days
20 days-15%
21 days
22 days
23 days
24 days
25 days
26 days
27 days
28 days
29 days
30 days-18%

1 day
2 days
3 days
4 days
5 days-8%
6 days
7 days
8 days
9 days
10 days-11%
11 days
12 days
13 days
14 days
15 days
16 days
17 days
18 days
19 days
20 days-15%
21 days
22 days
23 days
24 days
25 days
26 days
27 days
28 days
29 days
30 days-18%

Save 8%

7 Days

Save 8%

eSIMs/Travellers

Up to 5G support

5GT-Mobile UK

Choose number of eSIMs

1 eSIM

Choose number of eSIMsHow many travellers

1 eSIM

TotalFrom SGD$3.49USD

Activate instantly

Install your eSIM before or during your trip. Your plan starts when your device connects to a local network at your destination, and auto-activates after 120 days. User guide

Apple App Store

Rated 5/5

Secure payment guaranteed

eSIM - 1

US$0.00

eSIM - 1

US$0.00

An eSIM for United Kingdom from HelloRoam starts at S$4.43 per day across 203+ carrier networks in 185+ countries. Activate via QR code in under two minutes on any e-sim compatible phone. Keep your Singtel, StarHub, or M1 number active.

203+ coverage
5G
within 2 minutes setup

VerifiedApril 2026

United Kingdom eSIM with fast 5G coverage

HelloRoam offers eSIM plans for the United Kingdom starting from $3.00. Connect on 5G networks including O2, Three, and Vodafone. The UK is a top long-haul destination for Singapore travellers visiting London, Edinburgh, and the English countryside. 185+.

Plans start at S$4.43 with 5G speeds
Coverage from T-Mobile UK and 3+ other operators
Instant activation in under 5 minutes
180-day money-back guarantee
United Kingdom coverage across major cities

United Kingdom — HelloRoam eSIM coverage

How to use HelloRoam

How to Set Up an eSIM in United Kingdom

Three steps to get online the moment you land. Set everything up at home before you board.

Set up an eSIM on your iPhone for international travel

iPhone settings screen showing cellular options

10GB

Most travellers choose

From SGD

Choose your plan and check out online

Pick a data plan for United Kingdom and pay in SGD. Takes about 2 minutes online. no store visit, no paperwork.

Scan the QR code

Scan the QR code from your email to install your eSIM on iPhone or Android. Works over home Wi-Fi or at Changi Airport.

Installing...

Arrive connected. auto-activates on landing

Your eSIM installs in under 2 minutes and activates automatically when you land at your destination.

Manage everything from the HelloRoam app

Track data usage, top up your plan, and manage all your eSIMs from the HelloRoam app.

10GB

Most travellers choose

From SGD

Choose your plan and check out online

Pick a data plan for United Kingdom and pay in SGD. Takes about 2 minutes online. no store visit, no paperwork.

Scan the QR code

Scan the QR code from your email to install your eSIM on iPhone or Android. Works over home Wi-Fi or at Changi Airport.

Installing...

Arrive connected. auto-activates on landing

Your eSIM installs in under 2 minutes and activates automatically when you land at your destination.

Manage everything from the HelloRoam app

Track data usage, top up your plan, and manage all your eSIMs from the HelloRoam app.

10GB

Most travellers choose

From SGD

Choose your plan and check out online

Pick a data plan for United Kingdom and pay in SGD. Takes about 2 minutes online. no store visit, no paperwork.

Scan the QR code

Scan the QR code from your email to install your eSIM on iPhone or Android. Works over home Wi-Fi or at Changi Airport.

Installing...

Arrive connected. auto-activates on landing

Your eSIM installs in under 2 minutes and activates automatically when you land at your destination.

Manage everything from the HelloRoam app

Track data usage, top up your plan, and manage all your eSIMs from the HelloRoam app.

10GB

Most travellers choose

From SGD

Choose your plan and check out online

Pick a data plan for United Kingdom and pay in SGD. Takes about 2 minutes online. no store visit, no paperwork.

Scan the QR code

Scan the QR code from your email to install your eSIM on iPhone or Android. Works over home Wi-Fi or at Changi Airport.

Installing...

Arrive connected. auto-activates on landing

Your eSIM installs in under 2 minutes and activates automatically when you land at your destination.

Manage everything from the HelloRoam app

Track data usage, top up your plan, and manage all your eSIMs from the HelloRoam app.

Trip changed? Not to worry, we have got you covered.

Travel plans change. With HelloRoam, you can request a full refund on any unused eSIM plan within 180 days of purchase. No questions asked if the eSIM has not been activated. Partial refunds apply to activated plans.

Learn more about our refund policy

eSIM for United Kingdom vs Singtel, StarHub, and M1 Roaming

When comparing eSIM vs a travel SIM card for United Kingdom, HelloRoam wins on price. Singtel DataRoam Saver, StarHub Roam Easy, and M1 Data Passport each charge S$10 per day. HelloRoam eSIM connects to local carrier networks from S$4.43 per day with no daily roaming bill, no overage surprises, and a 180-day refund guarantee.

Feature		Singtel / StarHub / M1 roaming	Limited data eSIM
180-day refund policy
Live chat support
No activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium United Kingdom carrier networks

Why Travellers Choose HelloRoam e-sim for UK

24/7 24/7 live chat support

A real person responds via live chat in under 5 minutes, any time of day. No bots, no email queues. Get help with activation, troubleshooting, or plan changes whilst you are on the move. 24/7 support included with every plan.

Fuss-free setup in under 2 minutes

Buy a plan, scan the QR code, and your phone connects the moment you land. No store visit, no SIM swap, no paperwork. Fuss-free setup takes under 2 minutes at home before you board.

Dual SIM: keep your home number

Keep your Singtel, StarHub, or M1 SIM active for calls and SMS. HelloRoam runs data on a second e-sim line at the same time on any dual SIM phone. No carrier swap required.

203+ Automatic network switching

Your e-sim connects to 203+ carrier networks across 185+ countries. If a faster 4G or 5G signal is available nearby, your phone switches automatically. No manual network selection, no dropped connection.

Low-data alerts

HelloRoam sends an alert when you reach 80% of your data allowance. You get time to top up before you run out, so you are never caught without data mid-trip.

Local network speeds

Connect to local carrier networks in United Kingdom for stable 4G LTE and 5G in cities, airports, transit hubs, and tourist areas. Same network quality as a local SIM, without the S$10/day roaming bill.

Regional and global plans

Multi-destination ASEAN trips covered. Regional and global plans include Malaysia, Thailand, Indonesia, Japan, South Korea, and 185+ countries in a single purchase. One account, one checkout.

Hotspot sharing included

Share your eSIM data connection with a laptop or tablet via your phone hotspot. No extra fees, no separate data plan. Useful for remote work and business travel to United Kingdom.

24/7 24/7 live chat support

Fuss-free setup in under 2 minutes

Buy a plan, scan the QR code, and your phone connects the moment you land. No store visit, no SIM swap, no paperwork. Fuss-free setup takes under 2 minutes at home before you board.

Dual SIM: keep your home number

Keep your Singtel, StarHub, or M1 SIM active for calls and SMS. HelloRoam runs data on a second e-sim line at the same time on any dual SIM phone. No carrier swap required.

203+ Automatic network switching

Low-data alerts

HelloRoam sends an alert when you reach 80% of your data allowance. You get time to top up before you run out, so you are never caught without data mid-trip.

Local network speeds

Regional and global plans

Multi-destination ASEAN trips covered. Regional and global plans include Malaysia, Thailand, Indonesia, Japan, South Korea, and 185+ countries in a single purchase. One account, one checkout.

Hotspot sharing included

Share your eSIM data connection with a laptop or tablet via your phone hotspot. No extra fees, no separate data plan. Useful for remote work and business travel to United Kingdom.

What Is an e SIM? How eSIM Works in United Kingdom

An eSIM is a digital SIM built into your phone. Scan a QR code to activate a data plan on any eSIM compatible device for United Kingdom travel. No plastic chip, no airport kiosk, no queuing. Fuss-free setup in under 2 minutes. Follow the step-by-step guide to get connected before your flight. guide

Unlimited Data

Up to 5G support

Data sharing

Learn more about eSIM

eSIM activation and setup guide for international travellers

15.56 GB

Out of 30 GB left

10GB

United Kingdom — mobile connectivity coverage

Mobile connectivity guide for the United Kingdom

The United Kingdom has excellent 5G and 4G coverage across London, Edinburgh, Manchester, and all major cities. O2, Three, and Vodafone are leading networks with strong national coverage. For Singaporeans, the UK is a major long-haul destination: many Singapore families have relatives or friends in the UK, and London is a bucket-list destination for shopping, history, and theatre. Singapore Airlines and British Airways both fly direct from Changi to Heathrow. 185+.

Get your eSIM

HelloRoam connects to T-Mobile UK 5G, Three 4G, O2 5G and 1 more in United Kingdom
5G on O2, Three, and Vodafone across London, Edinburgh, Manchester, and nationwide
Connect at Heathrow or Gatwick immediately after your SIA or BA flight from Changi
Covers Central London, the Edinburgh Royal Mile, the Cotswolds, and Scottish Highlands

eSIM Travel Tips for United Kingdom

London is a top destination for Singaporeans: sort your eSIM at home
Singapore to London Heathrow is about 13 hours on Singapore Airlines. Set up your HelloRoam eSIM the night before your Changi departure. Enable data when you land at Heathrow and the TfL (Transport for London) app, Citymapper, and Uber work immediately. No SIM hunting at Heathrow needed.
TfL, Elizabeth line, and the Tube need live data
London's public transport network is vast. The Citymapper and TfL Go apps are the best ways to navigate the Underground, the Elizabeth line, and London buses. Both need live data. Your HelloRoam eSIM keeps transit apps running from Heathrow Terminal 2 or 5 all the way into Central London.
Shopping in London: from Harrods to Oxford Street
London shopping is a major draw for Singapore visitors. Harrods, Selfridges, Oxford Street, and the King's Road are all well covered with 5G. Your HelloRoam eSIM keeps Google Maps, online banking, and price comparison apps running throughout your London shopping days.
Edinburgh and Scotland: good coverage in cities, limited in Highlands
Edinburgh's Old Town, the Royal Mile, and Arthur's Seat area have excellent 4G and 5G. The Scottish Highlands (Glencoe, Ben Nevis, Isle of Skye) have very limited signal. Download offline maps of the Highlands and your road trip itinerary before leaving Edinburgh.
Many Singaporeans have family in the UK: plan your data
The Singapore community in the UK is significant. Whether visiting family in London, Manchester, or Birmingham, or attending university open days, a HelloRoam eSIM keeps WhatsApp, video calls back to Singapore, and navigation all running throughout your UK stay.

Get your eSIM

Mobile networks in the UK: what Singapore visitors need to know

HelloRoam connects on O2, Three, and Vodafone in the United Kingdom. All three are major national operators with 5G in London and major cities and 4G across England, Scotland, and Wales. Rural Scotland and remote areas of Wales and northern England can have limited signal.

5G
5G coverage
T-Mobile UK5G
Three4G

HelloRoam eSIM vs Singtel, StarHub, or M1 UK roaming

Your data options for a UK trip from Singapore.

Recommended

Typical cost

From $5.00 total

Details

Plans from $3.00. Buy before your SIA or BA flight from Changi, activate at home, and land at Heathrow already on local O2, Three, or Vodafone 5G. TfL navigation ready from the terminal.

UK SIM

Typical cost

$10.00–$25.00 total

Details

UK prepaid SIMs are available at airport shops. But after a 13-hour flight from Changi, a HelloRoam eSIM already activated at home is far more convenient.

Singtel, StarHub, or M1 UK roaming

Typical cost

$8.00–$12.00/day

Details

Singapore carrier UK roaming packages can cost $8 to $15 per day. Two weeks in London and Edinburgh on SG roaming adds up very significantly compared to a HelloRoam eSIM.

Prices approximate as of April 2026. Actual savings vary.

Best time to visit the UK from Singapore

Summer in the UK from June to August is the most popular with Singapore visitors. Long daylight hours and festival season make it ideal. Spring from April to May is beautiful with blossoms and pleasant weather. UK winters are cold, grey, and short on daylight. Singapore school holidays in June and December are peak SG travel periods to the UK.

Mubashir Gulab

Top Destinations in United Kingdom

Edinburgh

Stay connected in Edinburgh with HelloRoam. Get an eSIM data plan for United Kingdom and go online right away.

View plans

O2, Three, and Vodafone 5G cover Edinburgh city fully; Edinburgh Airport has reliable data throughout terminals.

London

HelloRoam delivers high-speed data in London, United Kingdom. Activate your eSIM and connect in minutes.

View plans

O2, Three, and Vodafone 5G cover London throughout; Tube coverage is expanding on all sub-surface lines.

Essex

HelloRoam gives you instant data access in Essex, United Kingdom with no extra fees.

O2, Three, and Vodafone 5G cover Essex towns; rural north Essex may drop to 4G between larger settlements.

HelloRoam United Kingdom eSIM plan with full data coverage in Hampshire for travelers

Hampshire uk

HelloRoam supports full data coverage in Hampshire and nearby areas of United Kingdom.

O2, Three, and Vodafone 5G cover Hampshire; Southampton Airport and the New Forest have solid connectivity.

Winchester Cathedral rising above the medieval city streets in Hampshire on a clear summer morning

Hampshire Uk

Hampshire in southern England blends ancient woodland, Saxon cathedral cities, and a rich naval history along its Solent coastline facing the Isle of Wight.

Get HelloRoam active before arriving in the UK, Hampshire's rural areas still have solid 4G coverage.

Kent

HelloRoam offers data plans for Kent travelers, with coverage across United Kingdom.

O2, Three, and Vodafone 5G cover Kent; Eurostar travellers at Ashford and Folkestone have strong signal.

Manchester

Manchester is a dynamic northern English city known for its legendary music scene, Premier League football, vibrant curry mile, and world-class Manchester United and City clubs.

HelloRoam gives you solid UK coverage in Manchester, great for navigating trams, restaurants, and match-day crowds.

Surrey

HelloRoam makes it easy to stay online in Surrey with data plans for United Kingdom.

O2, Three, and Vodafone 5G cover Surrey; Gatwick Airport at the south edge has full 5G throughout terminals.

Check Device Compatibility Data Usage Calculator

What Our Customers Say Join thousands of happy travellers

Apple App Store

Rated 5/5

4.8Rating

"Used HelloRoam in Japan. Connected at Narita in 2 minutes. Saved vs Singtel's S$10/day DataRoam Saver."

Sarah T.

4.8Rating

"Took HelloRoam to Korea and Taiwan. Fuss-free setup, strong 5G coverage. Far better value than StarHub roaming."

James L.

"Set up my eSIM at Changi before boarding to London. Had data on landing at Heathrow. No SIM swap needed."

4.8Rating

"Used it for a JB weekend and a Japan holiday. Kept my M1 number active. Works perfectly on dual SIM."

Raj K.

4.8Rating

"HelloRoam covered Thailand, Bali, and Vietnam on one plan. Each day of travel cost less than one Singtel roaming day."

Amanda W.

4.8Rating

"The 180-day refund policy is reassuring. Used it across Europe for 3 weeks. Reliable connection throughout."

David P.

4.8Rating

"Used HelloRoam in Japan. Connected at Narita in 2 minutes. Saved vs Singtel's S$10/day DataRoam Saver."

Sarah T.

"Set up my eSIM at Changi before boarding to London. Had data on landing at Heathrow. No SIM swap needed."

4.8Rating

"Used it for a JB weekend and a Japan holiday. Kept my M1 number active. Works perfectly on dual SIM."

Raj K.

4.8Rating

"HelloRoam covered Thailand, Bali, and Vietnam on one plan. Each day of travel cost less than one Singtel roaming day."

Amanda W.

4.8Rating

"The 180-day refund policy is reassuring. Used it across Europe for 3 weeks. Reliable connection throughout."

David P.

Prices verified: 21 April 2026

United Kingdom eSIM Questions Answered

HelloRoam is the best e SIM for United Kingdom from Singapore. It costs a fraction of Singtel DataRoam Saver, StarHub Roam Easy, and M1 Data Passport at S$10/day each. Plans start from S$4.43 per day with local 4G LTE and 5G speeds. Activate via QR code in under two minutes at home before you board at Changi. No store visit, no paperwork, and a 180-day refund guarantee included.

HelloRoam eSIM plans for United Kingdom start from S$4.43 per day in SGD. Fixed data plans run from 1GB to 20GB and suit trips of a few days to two weeks. Unlimited daily plans work better for longer stays or heavy data use. All plans are prepaid at checkout with no daily roaming charge added to your Singtel, StarHub, or M1 account.

HelloRoam eSIM connects to 203+ local carrier networks in United Kingdom and picks the strongest available 4G LTE or 5G signal automatically. Coverage spans major cities, airports, tourist districts, and transport hubs. No manual network selection is needed. You get the same network quality as a local resident, not a tourist data tier.

Buy your United Kingdom eSIM plan on helloroam.com or the HelloRoam app. Receive a QR code by email and scan it in your phone Settings. The install takes under two minutes over your home Wi-Fi. Your plan activates the moment you land at your destination. No need to visit any kiosk at Changi Terminals 1, 2, 3, or 4, and no queuing at Jewel Changi.

HelloRoam eSIM works on iPhone XS and all newer models running iOS 12.1 or later, including iPhone 11, 12, 13, 14, 15, and 16 series. Open Settings, tap Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Singtel, StarHub, or M1 SIM stays active for calls and texts. HelloRoam handles all data in United Kingdom on a separate dual SIM line.

HelloRoam eSIM includes 5G access wherever partner networks provide 5G coverage in United Kingdom. Your phone must support the 5G bands used locally. Where 5G is unavailable, your e-sim drops to 4G LTE automatically. iPhone 12 and newer, and Samsung Galaxy S21 and above support 5G on HelloRoam plans. Japan, South Korea, Australia, and most major European cities have wide 5G coverage through HelloRoam partner networks.

Check your HelloRoam eSIM data balance two ways. The HelloRoam dashboard at helloroam.com shows data remaining, plan expiry, and usage history. On iPhone, go to Settings, then Mobile Data, then select your HelloRoam eSIM line to see usage. On Android, go to Settings, then Network and Internet, then Data Usage. HelloRoam sends an alert when you reach 80% of your allowance so you can top up before you run out mid-trip.

HelloRoam offers a 180-day refund window for unused eSIM plans. Full refunds apply if the e-sim profile has not been activated. Partial refunds cover the unused data portion on activated plans. Submit a refund request through the HelloRoam dashboard or contact support at help@helloroam.com with your order ID. Refunds process within 5 to 14 working days.

HelloRoam eSIM plans for United Kingdom start from S$4.43 per day, well below Singtel DataRoam Saver, StarHub Roam Easy, and M1 Data Passport at S$10/day each. On a 7-day trip, that gap adds up fast. HelloRoam connects to the same local carrier networks at local data prices, with no per-day roaming bill on your Singapore carrier account.

HelloRoam is a reliable eSIM for travel to United Kingdom. Plans start from S$4.43 per day. It connects to 203+ carrier networks across 185+ countries, covering ASEAN destinations, Europe, and long-haul routes on one account. Activate via QR code with no store visit and no carrier contract. Your Singtel, StarHub, or M1 number stays active for calls whilst HelloRoam handles data. Includes 24/7 live support.

HelloRoam is a global eSIM platform that partners with local carriers in 185+ countries, including United Kingdom. It connects your phone to local partner networks so you pay local data rates instead of the per-day roaming fees Singtel, StarHub, or M1 add to your bill. Buy a plan online, scan a QR code, and connect on arrival. No carrier contract, no locked-in roaming agreement. Complies with Singapore's Personal Data Protection Act (PDPA). HelloRoam is an eSIM platform, not an MVNO. It partners directly with local carrier networks in United Kingdom to deliver data at local speeds.

HelloRoam is a practical option for business travellers and frequent flyers heading to United Kingdom. It is a prepaid e-sim for overseas travel: buy online, scan a QR code, and connect the moment you clear immigration. No store visit, no replacement SIM, no long-term contract. Plans start from S$4.43 per day, paid in SGD, with instant QR delivery to your email.

What to Know Before You Buy

eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before purchasing.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within United Kingdom. Urban areas typically have strong 4G/5G coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. Activation requires an internet connection, which may not be available at your destination airport.