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eSIM vs Roaming for Singapore Travellers: Real Cost Comparison

Roaming day passes from Singtel, StarHub and M1 add up fast, and bill shock is all too common when you get home. With a HelloRoam eSIM data plan, you pay one prepaid price instead of daily roaming charges. Here is a clear breakdown of costs, speeds and convenience for every trip from Changi.

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10GB
185+ Countries
From S$1.32
Setup in Minutes

Why an eSIM Beats Carrier Roaming

No Surprise Bills

Pay one flat rate before you fly. No SGD 10-per-day stacking from Singtel, StarHub, or M1. No bill shock when you check your app after landing back at Changi. Total cost is clear before you buy.

Local Network Speeds

A HelloRoam eSIM connects you directly to a local 4G or 5G network in Japan, Korea or Thailand, with no home carrier plan needed. Roaming add-ons from Singtel, StarHub and M1 only work on top of a plan with that carrier.

Keep Your Home Number

Keep your Singtel, StarHub, or M1 number active for calls and WhatsApp while the HelloRoam eSIM handles all your data abroad. Turn off Data Roaming on your primary SIM line to avoid carrier fees entirely.

Instant Activation

Set up your eSIM at home on your broadband or at Changi Airport using the free terminal Wi-Fi. No SIM counter queue at Arrivals, no store visits, no paperwork. Scan a QR code and your data is ready to go.

Save on Roaming Costs

Roaming day passes from Singtel, StarHub or M1 add up fast over a week in Japan. A HelloRoam eSIM for the same week is one prepaid price, with no daily meter running.

Multi-Country Plans

One regional eSIM plan covers Japan, Korea, Thailand, and Bali in a single purchase. No separate roaming pass for each stop on a multi-country trip from Changi.

Real-World Savings for Singapore Travellers

Weekend in Tokyo

A 3-day trip to Tokyo on Singtel or StarHub roaming means paying for a roaming add-on, and carrier day passes add up fast. An international SIM card from a Tokyo airport kiosk adds queuing time. A HelloRoam eSIM with 3GB covers maps, translation apps and messaging across the full trip. Turn off roaming on your Singtel or StarHub SIM, set the eSIM as your data line, and skip the roaming add-on on your next Tokyo weekend.

No roaming add-on fees

Two Weeks in Japan and Korea

Two weeks across Japan and South Korea on Singtel or M1 roaming gets expensive, because carrier day passes add up fast. US carrier plans with international calling are built for US residents and do not apply to Singapore SIMs. A HelloRoam 10GB eSIM covers the same itinerary across both countries. You connect to local networks for one prepaid HelloRoam price, with no roaming fees from your home carrier.

One prepaid plan for both countries

Month-Long Europe Trip

A month touring Spain, France and Italy on daily roaming passes from your Singapore carrier adds up fast. A HelloRoam 20GB eSIM covers your whole cross-border trip for one prepaid price. One upfront payment before you board at Changi means no overage fees and no roaming settings to adjust as you cross each border.

One upfront payment, no overage fees

Carrier roaming estimates based on Singtel, StarHub, and M1 international day pass rates. Actual costs vary by carrier, plan tier, and destination.

Singaporean traveller at Changi Airport checking their phone and saving money with a HelloRoam eSIM instead of Singtel or StarHub roaming charges

eSIM vs Roaming vs Pocket Wi-Fi

How each option stacks up for travellers flying out of Singapore

eSIM vs Roaming vs Pocket Wi-Fi
Feature comparisonHelloRoam
Carrier RoamingPocket Wi-Fi
No Surprise BillsFeature availableFeature not availableFeature available
Flat Upfront PricingFeature availableFeature not availableFeature available
Local Network SpeedsFeature availableFeature not availableFeature available
Instant QR Code SetupFeature availableFeature not availableFeature not available
Keep Your Home NumberFeature availableFeature availableFeature available
No Daily FeesFeature availableFeature not availableFeature not available
Multi-Country PlansFeature availableFeature availableFeature not available

Find Your eSIM Plan

Browse affordable eSIM plans for your next trip

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Get connected in 4 easy steps

How to Get Your eSIM

  1. 1

    Choose your destination

  2. 2

    Scan the QR code

    Scan QR code to install eSIM
  3. 3

    Install your eSIM

  4. 4

    Connect and go

    Turn off roaming and connect
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One-Touch Installation

Install your eSIM in seconds with a QR code scan. Scan the code, confirm, and you are connected before you board.

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24/7 Support Chat

Got questions about eSIM plans or setup? Our support team is available around the clock. Reach us via live chat or WhatsApp anytime.

Stop Overpaying for Roaming

Carrier roaming locks you into your home carrier's pricing and its deals with foreign networks. A prepaid eSIM travel plan skips your home carrier's roaming prices. You buy a prepaid data plan before you leave Singapore, pay one HelloRoam price and connect to a local partner network wherever you go, with no roaming fees from your home carrier.

Singaporean traveller who switched from expensive Singtel roaming to an affordable HelloRoam eSIM plan and saved money

No Surprise Bills

Pay one prepaid price before you fly out of Changi. No per-megabyte charges and no surprise roaming charges on your Singtel, StarHub or M1 bill when you land back in Singapore.

Local Network Speeds

Connect to a local 4G/5G network in Tokyo, Seoul or Bangkok. Roaming with Singtel, StarHub or M1 means paying for day passes or add-ons on top of your home plan.

Keep Your Home Number

Run dual SIM to keep your Singtel, StarHub, or M1 number active for WhatsApp calls and texts while the HelloRoam eSIM handles all your data abroad. Turn off Data Roaming on your primary SIM before you board to stop carrier charges from the moment you land.

Instant Activation

Set up before your flight or use Changi Airport's free Wi-Fi for a last-minute install. No queue at the SIM counter in Arrivals, no store visit, no paperwork. Scan a QR code and get online in under 5 minutes.

Reviews

Loved by travelers worldwide

Real reviews from Trustpilot and the App Store, quoted as written.

40k+ travellers have used HelloRoam

Cat

Trustpilot
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!

Rated 5 out of 5 by this reviewer

A traveller smiles at the view while holding her phone by an airport window
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.

Ilona

Trustpilot

Rated 5 out of 5 by this reviewer

metulker

App Store
Hard to set up but help was good

Rated 5 out of 5 by this reviewer

Reuben

Trustpilot
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.

Rated 5 out of 5 by this reviewer

Hikers with backpacks walk along the Great Wall of China

Angeline

Trustpilot
Reliable connection. Reasonable pricing.

Rated 4 out of 5 by this reviewer

Frequently Asked Questions

How much does roaming cost per day from Singapore?

The daily cost of roaming from Singapore depends on your carrier, your pass and your destination. Singtel DataRoam Unlimited Daily costs S$19 a day in Malaysia, S$25 a day in Japan and S$29 a day in the USA. M1 Daily Passport costs S$2.95 to S$8.95 per 24 hours by zone, plus a S$4.95 subscription charge per bill cycle in the month you travel. These daily charges stack up fast on any trip longer than a few days. An international SIM card bought at your destination airport means queuing at a counter and swapping out your Singapore SIM for the trip. A HelloRoam eSIM covers the same trip at a flat, one-time rate with no daily charges and no overage risk.

Is eSIM cheaper than roaming from Singapore?

A prepaid eSIM is often cheaper than carrier roaming, especially on longer trips. Daily passes charge again for every day abroad: Singtel DataRoam Unlimited Daily, for example, costs S$19 a day in Malaysia. Some carrier passes cover several days for one price, so check your carrier's rate for your destination too. A HelloRoam eSIM covers the whole trip at a flat, one-time rate with no daily charges and no overage risk when you land back at Changi.

How do I avoid roaming charges when travelling from Singapore?

The most fuss-free way to avoid roaming charges when travelling from Singapore is to turn off data roaming on your Singtel, StarHub, or M1 line and run a prepaid HelloRoam eSIM for all mobile data abroad. On iPhone, find the data roaming setting at Settings, then Mobile Service, then Mobile Data Options, then Data Roaming. On Android, go to Settings, then Connections, then Mobile Networks, then Data Roaming. Switch it off for your home line before you board, and keep it on for your HelloRoam line, which needs data roaming to connect abroad. Buy your HelloRoam plan before departure, install it at home, and pay no data roaming fees while you travel.

What is better for trips from Singapore, roaming or eSIM?

For trips from Singapore, an eSIM is often better than carrier roaming: the cost is usually lower, you connect to local partner networks, and no daily fees build up. Many roaming add-ons from Singtel, StarHub and M1 charge by the day, so the bill grows with every day abroad. A HelloRoam eSIM gives you a flat prepaid rate, local 4G networks with 5G where available, and no daily billing.

Is eSIM worth it for a 2-week Japan trip from Singapore?

An eSIM often pays off on a 2-week Japan trip from Singapore. Singtel DataRoam Unlimited Daily costs S$25 a day in Japan, and that charge repeats for every day you stay. Multi-day carrier passes also exist, so compare your carrier's Japan rate with a HelloRoam Japan plan before you go. A HelloRoam eSIM covers the same 2-week Japan trip at one flat prepaid price, with no daily charges.

What is the best international phone plan for trips from Singapore?

HelloRoam eSIM offers fixed data plans in 185+ countries and unlimited plans in most destinations. HelloRoam plans start from S$1.32; prices vary by destination. On trips from Singapore, a prepaid eSIM often costs less than traditional international mobile plans because there are no daily fees. Many overseas data passes from Singtel, StarHub and M1 charge by the day. For most trips, the best international phone plan is a prepaid eSIM: buy once, activate on arrival.

How much does international roaming cost per day for Singapore plans?

Daily roaming costs depend on the carrier, the pass and the destination. StarHub RoamEasy Daily charges S$10 for every 100MB of data you use in a day. StarHub DataTravel Unlimited costs S$40 a day. Singtel DataRoam Unlimited Daily costs S$29 a day in the USA. A HelloRoam eSIM on an eSIM-compatible phone covers the whole trip at one prepaid rate, with no daily billing.

Does eSIM work for a JB day trip or Batam weekend from Singapore?

eSIM works for a Johor Bahru day trip without buying a Malaysian SIM card. HelloRoam sells plans for Malaysia. Buy a short-duration Malaysia plan before you drive or take the bus across the Causeway. Your eSIM activates the moment your phone detects the Malaysian network after you cross. Keep your Singtel, StarHub, or M1 SIM active for calls back home while your HelloRoam eSIM handles data in JB. No queuing at CIQ for a Malaysian SIM. The same applies to Batam and Bintan trips: HelloRoam Indonesia plans connect once your ferry from Singapore arrives in Batam or Bintan.

Do I need Wi-Fi to set up my eSIM before flying from Changi?

eSIM needs Wi-Fi or mobile data for the initial profile download only. Install it at home on your Singtel broadband or StarHub fibre before you leave for Changi. The download takes under 2 minutes. Changi Airport's free Wi-Fi works too if you forgot to set up at home. After installation, the eSIM activates the moment your phone detects the destination network. No Wi-Fi needed after that. HelloRoam covers 185+ countries with 24/7 support, and each destination's page shows its plan prices before you buy.

Does eSIM use more battery than roaming?

eSIM does not drain more battery than carrier roaming. When your Singtel or StarHub SIM roams abroad, your phone keeps scanning for a compatible partner network, which increases battery drain. A HelloRoam eSIM connects to a local partner network at your destination, so your phone can settle on that network. Both technologies use similar power once connected. HelloRoam plans start from S$1.32.

Are eSIMs good for Singapore travel patterns like ASEAN hops and long-haul trips?

eSIM is well-suited for Singapore's travel patterns. Most Singaporeans travel frequently, short ASEAN hops to Bangkok, KL, or Bali, and longer hauls to Tokyo, Seoul, Sydney, London, or New York. A HelloRoam eSIM works for all of them. You activate before you fly from Changi, keep your Singtel, StarHub, or M1 number active on your primary SIM, and pay one flat rate per destination. No daily fees stack up no matter how long the trip. Plans start from S$1.32.

How much does an eSIM cost compared to Singtel or StarHub roaming?

HelloRoam plans start from S$1.32; prices vary by destination. Carrier roaming is often billed by the day. Singtel DataRoam Unlimited Daily costs S$25 a day in Japan. StarHub DataTravel Unlimited costs S$40 a day. A HelloRoam Japan plan covers your whole trip at one flat, one-time rate, and the Japan page shows the price before you buy. Fixed data plans come in sizes that vary by destination, and unlimited plans, sold in most destinations, suit heavy data users. Fair-use terms apply.

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Sources

  1. GSMA — The Mobile Economy 2025(Accessed April 2026)
  2. FCC — International Roaming(Accessed April 2026)