travelplanet.cc eSIM & SIM Cards for Asia – Comparison 2026

Asia is not a single telecom zone. It includes some of the most advanced 5G markets in the world (Japan, South Korea, Singapore) alongside regions with patchy 4G coverage in rural and remote areas. The best connectivity solution depends entirely on your itinerary: a fast-paced multi-country trip requires a different strategy than a two-week stay in a single country.

Key considerations for travelers:

• Regional eSIMs are the most convenient choice for multi-country trips – they automatically switch to the best local network at each border.
• Country-specific eSIMs can be cheaper for longer stays in a single destination and often offer better local performance.
• Roaming with your home provider is almost always the most expensive option – traditional roaming can cost $10-15 per day.

This is the core decision for Asia travelers. The table below helps you choose based on your travel style:

The following providers were tested and compared by TechRadar and other experts. Prices are indicative (as of 2026) and may vary.

Prices are indicative (as of 2026) and subject to change. Always check provider websites for current offers.

These are the most connected countries in Asia. 5G is widespread in cities, and 4G coverage is excellent even in rural areas. Japan and South Korea have the fastest mobile networks in the world.

Japan

• Best network: NTT Docomo (best rural coverage), SoftBank, KDDI (au).
• Ubigi: 5GB/30 days – ~$9.90, excellent performance
• Holafly: Unlimited / 7 days – ~$19.90
• TripoSIM: 5GB/30 days – from $5.99
• Local SIM: Available at airports (Narita, Kansai, Haneda) and electronics stores (Bic Camera, Yodobashi). Registration with passport required.
• Link: NTT Docomo

South Korea

• Best networks: SK Telecom, KT, LG U+.
• Ubigi: 5GB/30 days – ~$9.90, direct carrier partnership
• Nomad: Asia-Pacific regional plan – 10GB/30 days ~$15
• TripoSIM: 5GB/30 days – from $5.49
• Local SIM: Available at airports (Incheon, Gimpo) and carrier stores.
• Link: SK Telecom

Taiwan

• Best networks: Chunghwa Telecom, Taiwan Mobile, Far EasTone.
• HelloRoam: CMHK 5G coverage across Taiwan.
• KKday eSIM: Requires passport upload for Taiwan.
• Local SIM: Available at airports (Taoyuan) and carrier stores. Registration with passport required.
• Link: Chunghwa Telecom

The most popular backpacking route in the world. Coverage is excellent in cities and tourist areas, but can drop off in rural areas, remote islands, and national parks.

Thailand

• Best networks: AIS (best national coverage), TrueMove.
• Airalo: AIS-based eSIM available
• TripoSIM: 5GB/30 days – from $4.99
• Local SIM: Available at airports (Suvarnabhumi, Phuket), 7-Eleven, and carrier stores. Registration with passport required.
• Link: AIS Thailand

Vietnam

• Best networks: Vinaphone, Vietnamobile, VNPT.
• Trip.com: Vinaphone (5G) coverage.
• Nomad: Asia-Pacific regional plan – 10GB/30 days ~$15
• Local SIM: Available at airports (Noi Bai, Tan Son Nhat) and carrier stores. Registration with passport required.
• Link: Vinaphone

Malaysia

• Best networks: CelcomDigi, Maxis.
• Trip.com: CelcomDigi (5G) coverage.
• KKday eSIM: Uses Celcom, Singtel, Truemove networks.
• Local SIM: Available at airports (KLIA, Penang) and carrier stores.
• Link: CelcomDigi Malaysia

Singapore

• Best networks: StarHub, M1, SingTel.
• Trip.com: SIMBA (TPG), StarHub (5G).
• Ubigi: Asia regional plan – 20GB/30 days ~$39
• Local SIM: Available at airports (Changi) and carrier stores. Registration with passport required.
• Link: StarHub

Indonesia

• Best networks: Telkomsel (best national coverage), Indosat, XLSmart.
• Trip.com: Telkomsel, Indosat (5G).
• Nomad: Asia-Pacific regional plan – 10GB/30 days ~$15
• Local SIM: Available at airports (DPS, CGK) and carrier stores.
• Link: Telkomsel Indonesia

Philippines

• Best networks: Globe, SMART.
• HelloRoam: Globe and SMART 5G in Manila and Cebu.
• Nomad: Asia-Pacific regional plan – 10GB/30 days ~$15
• Local SIM: Available at airports (MNL, CEB) and carrier stores.
• Link: Globe Philippines

India is a massive market with good 4G coverage in cities but patchy rural coverage. Nepal and Sri Lanka have improving networks but can be spotty outside major urban centers.

India

• Best networks: Reliance Jio (best coverage), Vodafone Idea, Airtel.
• HelloRoam: Vodafone and Vi 4G coverage in cities.
• Ubigi: Asia regional plan covers India (Reliance Jio).
• Local SIM: Available at airports (DEL, BOM) – but registration is complex; you may need a local contact. eSIMs are strongly recommended for India.
• Link: Reliance Jio

Nepal

• Best networks: Ncell (best coverage), Nepal Telecom.
• Ubigi: Asia regional plan covers Nepal (Ncell).
• Local SIM: Available at airports (KTM) and carrier stores. Registration with passport and passport photo required.
• Link: Ncell Nepal

Sri Lanka

• Best networks: Mobitel, Dialog.
• HelloRoam: Mobitel 4G coverage in Colombo and Kandy; weaker in the tea highlands.
• Local SIM: Available at airports (CMB) and carrier stores.
• Link: Mobitel Sri Lanka

China presents unique connectivity challenges: Many international apps (Google, WhatsApp, Instagram, Facebook) are blocked without a VPN. Some eSIMs route data through servers outside China, automatically bypassing the firewall.

• Best networks: China Unicom (5G), China Mobile, China Telecom.
• Local eSIMs in China: China Unicom and China Mobile offer eSIMs, but you may need a Chinese ID or long-term visa to activate them.
• International eSIMs: Airalo, Trip.com, HelloRoam, and Ubigi all offer China coverage. Check if they provide a built-in VPN or data routing that works through the firewall.
• WeChat: Essential for local services – it's the most widely used app in China.
• Link: China Unicom

• Install eSIM before you go: Validity usually starts at first network connection in the destination country. This avoids airport SIM queues and gives you immediate connectivity.
• Check device compatibility: Most iPhones from XS onward, Samsung Galaxy S20 and newer, and Google Pixel 3+ support eSIM technology. Dial *#06# – if you see an EID number, your device supports eSIM.
• Download offline maps: Signal is often weak or absent in remote areas – offline maps are essential.
• Data allowance: 1-3 GB per week is enough for maps, messaging, and light browsing. Heavy users (streaming, hotshot) should plan for 5-10 GB+ per week.
• Know your FUP: Many "unlimited" plans throttle after a daily Fair Use Policy limit (e.g., 2-5 GB). Saily has the highest daily limit at 5GB/day.
• China VPN: If you need Google, WhatsApp, or Instagram in China, ensure your eSIM provider offers a built-in solution or use a VPN.
• Local vs. regional: Choose regional for 3+ countries, country-specific for 1-2 countries or longer stays.