eSIM Asia from S$1.32

Name: eSIM Asia
Brand: HelloRoam

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.

An eSIM for Asia from HelloRoam starts at S$1.32 across 204+ carrier networks in 185+ countries. Activate via QR code in under two minutes on any eSIM compatible phone. Keep your Singtel, StarHub, or M1 number active on dual SIM.

194+
networks
4G/5G
5G support
under 2 minutes
activation

UpdatedJune 2026

Travel eSIM Asia options and data plans

Affordable eSIM for Asia, starting from S$1.32. Local 4G LTE and 5G data on trusted carrier networks in Asia. Works on all eSIM compatible handphones. The cheapest eSIM for Asia from HelloRoam starts at S$1.32 on regional carriers 4G/5G networks per country. A HelloRoam travel sim Asia plan activates via QR code before you fly from Changi. Plans cover each destination from S$1.32 on local partner networks, so data is ready the moment you land. HelloRoam backs every order with a 180-day refund guarantee.

Asia eSIM with fast mixed coverage

HelloRoam Asia eSIM covers Japan, South Korea, Thailand, Malaysia, Indonesia, Vietnam, and more on one plan. Singaporean travellers on short-haul and long-haul Asia trips stay connected without SIM swapping.

Plans start at $1.03 with mixed speeds
Coverage from local networks
Instant activation in under 2 minutes
180-day money-back guarantee
Asia coverage across major cities

Network: mixed
Plans From: $1.03
Activation: Under 2 min
Guarantee: 180 days

Trip changed? No worries, we've got you covered!

Plans can change anytime, and that's fine. With HelloRoam, you can request a refund for your eSIM within 180 days of purchase.

Learn more about our refund policy

HelloRoam Asia eSIM vs Singtel, StarHub and M1

When comparing eSIM vs a travel SIM card for Asia, HelloRoam wins on price. It beats Singtel DataRoam, StarHub RoamEasy, and M1 international roaming add-ons. The cheapest eSIM plan starts from S$1.32, with no activation fee and a 180-day refund guarantee.

HelloRoam Asia eSIM vs Singtel, StarHub and M1
Feature		Local provider	Limited data eSIM
180-day refund policy
24/7 live chat support
$0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium Asia carrier networks

HelloRoam eSIM versus an Asia SIM card: which suits Singapore multi-country travellers?

A data sim card Asia from airport shops typically covers only one country, forcing a new purchase at every border. HelloRoam eSIM plans cover each Asia destination from S$1.32 on local partner 4G/5G networks, activated via QR before your first Changi flight. No physical swap and no per-border queue.
An Asia data sim plan from HelloRoam gives full-speed local network access across the region from S$1.32. Plans activate via QR in two minutes before your Changi departure. Each destination runs on regional carriers 4G/5G infrastructure with no throttling or hidden speed cap on most plans.
An unlimited data eSIM Asia plan from HelloRoam is the most flexible option for Singapore travellers covering Japan, Thailand, and Korea in one trip. Activate your plan by QR at home, cross each border without buying a new card, and stay on local 4G/5G speeds throughout. Plans start from S$1.32 with a 180-day refund guarantee.
An unlimited eSIM Asia option from HelloRoam suits travellers who want consistent speeds from Tokyo to Bangkok without managing separate data caps per country. Activate each plan by QR before your Changi departure. Plans start from S$1.32 with a 180-day refund guarantee on every order.

Read the full eSIM vs SIM card comparison

Why Singaporean Travellers Choose an e SIM for Asia

HelloRoam vs Other eSIM Providers for Asia

See how HelloRoam compares to Airalo, Holafly, and other eSIM providers for Asia travel. Singaporean travellers choose HelloRoam for the industry-leading purchase protection guarantee, 24/7 live chat support, and competitive pricing from S$1.32.

Feature comparison
Feature comparison		Airalo	Holafly	Nomad	Saily	Ubigi
180-day refund policy
24/7 live chat support
A$0 activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery
Premium Asia carrier networks
Own branded carrier identity (SPN)

eSIM Coverage Guide for Singaporean Travellers Across Asia

Asia's mobile connectivity ranges from world-class 5G in Japan, South Korea, and Singapore itself to solid urban 4G across Southeast Asia. As a Singaporean traveller, you already experience premium connectivity at home. Here is what to expect at your Asia destinations.

Japan consistently ranks among the world's top two fastest mobile networks. NTT Docomo, SoftBank, and au operate 5G across all major cities. Coverage is near-universal including on the Shinkansen, all Tokyo subway lines, and even in rural mountain areas.

South Korea's SK Telecom, KT, and LG Uplus have some of the world's densest 5G deployments. Seoul's entire metro system has 5G coverage. Busan, Incheon, and Jeju Island are all well-served.

Thailand is Singapore's most popular short-haul destination. Bangkok, Phuket, Chiang Mai, Koh Samui, and all main resort areas have strong 4G from AIS, DTAC, and True Move.

Indonesia's Bali has solid 4G in Seminyak, Ubud, Canggu, and Kuta from Telkomsel. Jakarta is well-covered. Lombok's main town and Gili Islands have basic coverage. Remote island areas are limited.

Vietnam's Ho Chi Minh City, Hanoi, Da Nang, and Hoi An have strong 4G. Cambodia's Phnom Penh and Siem Reap are well-served. Myanmar has basic urban coverage in Yangon.

Japan and South Korea rank among the world's fastest mobile networks
Thailand's main tourist areas have strong 4G from multiple carriers
Bali and Jakarta have solid coverage from Telkomsel
One plan covers the popular Singapore-Bangkok-Bali circuit
Remote islands, jungle, and mountain areas have limited signal
Download offline maps before remote excursions

SourcesGSMA Mobile Economy Asia Pacific 2025; Ookla Global Speedtest Index 2025

eSIM Travel Tips for Asia

Japan and South Korea Are Premium Networks
Japan and South Korea deliver some of the world's best mobile connectivity. Tokyo's entire subway, including underground stations, has coverage on all lines. Seoul's 5G is among the most dense globally. As a Singaporean accustomed to quality connectivity, you will feel at home in both countries.
Thailand Is Your Most Visited Short-Haul Destination
Bangkok, Phuket, Chiang Mai, and Koh Samui all have reliable 4G. AIS, DTAC, and True Move compete for coverage in all tourist areas. Beach resort areas on Koh Samui and Koh Phangan are generally well-covered in town. Download offline maps for remote beach coves.
Bali Is Well-Connected in Tourist Areas
Seminyak, Ubud, Canggu, Kuta, and Nusa Dua all have solid 4G from Telkomsel. The east Bali coast and remote rice terrace areas can be patchier. WhatsApp and all communication apps work normally throughout Bali and Indonesia.
Vietnam's Cities Are Increasingly Well-Connected
Ho Chi Minh City and Hanoi have strong 4G from Viettel, Mobifone, and Vinaphone. Da Nang and Hoi An are well-served. Ha Long Bay boat tours have basic signal in main bay areas. Remote Sapa has coverage in the main town.
Install Before You Leave Changi
Install your HelloRoam Asia eSIM before you depart from Changi Airport. The QR code setup takes a few minutes over Wi-Fi. Your eSIM is then ready to activate automatically in any covered country as soon as you land. No queues at destination airports.

Network Coverage Across Asia

Japan: NTT Docomo, SoftBank, and au operate nationwide 5G and 4G LTE with near-universal geographic coverage. Japan's indoor coverage quality is exceptional.

South Korea: SK Telecom, KT, and LG Uplus have dense 5G in all urban areas. Seoul's subway has 5G throughout.

Thailand: AIS, DTAC, and True Move compete across the country. AIS has the widest rural coverage. Bangkok has 5G rollout underway.

Indonesia: Telkomsel is the dominant operator with widest coverage. Indosat and XL Axiata compete in urban areas. Bali and Java are well-covered.

Vietnam: Viettel has excellent rural reach by Southeast Asian standards. Mobifone and Vinaphone are the other major carriers. Ho Chi Minh City and Hanoi have strong 4G.

Philippines: PLDT and Globe Telecom dominate. Manila, Cebu, and main cities have 4G. DITO Telecommunity is growing rapidly.

Cambodia: Smart and Metfone cover Phnom Penh and Siem Reap well. Rural and border areas are more limited.

V Various Asia-Pacific carriers: Network carrier

Best Times for Singaporean Travellers to Visit Asia

Japan's most popular seasons are spring (March to May) for cherry blossoms and autumn (October to November) for foliage. Both align with Singapore's school holiday periods. South Korea follows similar seasonal patterns.

Thailand is best November through April during the dry season. Bali's dry season is April through October. Vietnam's north is best October through April.

Singapore school holidays in June and November-December are peak outbound travel periods for Asia destinations.

Check Device Compatibility Data Usage Calculator

Prices verified for 2026 5 June 2026

FAQs About eSIM in Asia

An eSIM card Asia plan from HelloRoam starts at S$1.32 on regional carriers 4G/5G. HelloRoam activates each plan before you travel from Changi and displays all pricing per destination at checkout. No physical SIM card needed and no contract.

The cheapest eSIM for Asia from HelloRoam covers your full trip at local network speeds. Set up takes two minutes per country before your first Changi flight so you cross every border without buying a new card. No contract on any purchase.

For Singaporean travellers heading to Asia in 2026, HelloRoam is the top-rated eSIM choice. Plans start from S$1.32 in SGD with access to local 4G LTE and 5G networks across a wide carrier partnership spanning 185+ countries. Activate via QR code in under 2 minutes before departing from Changi Airport. Your Singtel, StarHub, or M1 number stays active through dual SIM while HelloRoam handles data abroad. You get a full money-back guarantee and 24/7 live chat support.

A Asia eSIM from HelloRoam costs from S$1.32 per day. Compare that to Singtel DataRoam daily passes and StarHub RoamEasy rates, which typically cost S$15 to S$30 per day. HelloRoam connects to local networks in Asia at local data prices, with no daily roaming surcharges and no carrier contract. All plans include local 4G LTE and 5G access with no overage charges.

An eSIM for Asia from HelloRoam connects to local 4G LTE and 5G carrier networks. Your handphone picks the strongest available signal the moment you land. Coverage spans major cities, highways, and most rural areas. HelloRoam has direct partnerships with local networks globally, so you get data speeds comparable to a local prepaid SIM card in Asia.

Buy your Asia eSIM before you leave Singapore in three steps. First, select your plan at helloroam.com and complete checkout in SGD. Second, open your handphone Settings, tap Add eSIM or Add Mobile Plan, and scan the QR code from your email. Third, your eSIM installs in under 2 minutes. Set it up the night before your flight from Changi and land connected.

iPhone XS and all newer models support HelloRoam eSIM in Asia. iPhone 13 and later models support dual eSIM, so your Singtel or StarHub line stays active for calls while HelloRoam handles travel data. For Android, Samsung Galaxy S20 and newer, Google Pixel 3 and later, and most 2019+ Android handphones support eSIM. Check your handphone Settings for an Add eSIM option to confirm compatibility.

A HelloRoam Asia regional eSIM covers Japan, South Korea, Thailand, and many other Asian countries on one plan. Singaporean travellers doing Japan plus South Korea or Thailand plus Bali combinations stay connected on the same plan at each destination. HelloRoam eSIM for HelloRoam Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from $1.03. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.

Tokyo and Osaka have near-total 4G and 5G coverage from NTT Docomo, SoftBank, and au. All Tokyo subway lines and Osaka's metro have coverage including underground stations. Japan's Shinkansen has in-train coverage throughout. HelloRoam eSIM for HelloRoam Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from $1.03. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.

Seoul has excellent 5G coverage from SK Telecom, KT, and LG Uplus. Seoul's entire metropolitan subway system has 5G coverage. Jeju Island has strong 4G. South Korea consistently ranks among the world's fastest mobile networks. HelloRoam eSIM for HelloRoam Asia eSIM connects to local network with 5G coverage across major tourist and urban areas. Plans start from $1.03. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.

Number of days	Price (AUD)
1 day	S$12.87
3 days	S$37.02
7 days	S$86.38
15 days	S$179.06
22 days	S$250.83
30 days	S$329.97

Category	Recommended	Individual country SIMs	Singapore carrier international roaming (Singtel/StarHub/M1/Simba)
Typical cost	—	—	—
Details	One plan covers Japan, South Korea, Thailand, Bali, and more. Buy before departing Changi. No SIM hunting at Suvarnabhumi or Ngurah Rai. Better value than Singapore carrier daily roaming passes for Asia destinations.	Separate SIM required for each country. Airport SIM counters have queues. Registration requirements vary. Managing multiple SIMs adds hassle on a multi-country Asia circuit.	Singtel, StarHub, M1, and Simba day passes for Asian destinations carry per-day charges. A two-week Japan plus Thailand trip can accumulate significant daily roaming costs. A regional eSIM plan is typically more cost-effective.

Number of days	Price (AUD)
1 day	S$12.87
3 days	S$37.02
7 days	S$86.38
15 days	S$179.06
22 days	S$250.83
30 days	S$329.97

Category	Recommended	Individual country SIMs	Singapore carrier international roaming (Singtel/StarHub/M1/Simba)
Typical cost	—	—	—
Details	One plan covers Japan, South Korea, Thailand, Bali, and more. Buy before departing Changi. No SIM hunting at Suvarnabhumi or Ngurah Rai. Better value than Singapore carrier daily roaming passes for Asia destinations.	Separate SIM required for each country. Airport SIM counters have queues. Registration requirements vary. Managing multiple SIMs adds hassle on a multi-country Asia circuit.	Singtel, StarHub, M1, and Simba day passes for Asian destinations carry per-day charges. A two-week Japan plus Thailand trip can accumulate significant daily roaming costs. A regional eSIM plan is typically more cost-effective.