HelloRoam 東南亞地區eSIM在哪些機場即時啟用？

東南亞主要國際機場均可即時啟用HelloRoam地區eSIM。泰國、新加坡、峇里島、越南、菲律賓等地的機場均有良好覆蓋。建議出發前在香港完成設定，落機後手機自動連接當地網絡，約5分鐘即可上網。

香港出發往東南亞，甚麼時候購買eSIM最好？

建議出發前1至7天購買，方便在家完成安裝及測試，整個設定過程約5分鐘完成。HelloRoam eSIM計劃時間由首次連接當地網絡時開始計算，提前購買不會浪費時間，可安心在出發前備好。

使用東南亞地區eSIM時可以保留香港電話號碼嗎？

HelloRoam eSIM只提供數據服務，不影響您的香港SIM卡。您可以同時使用2張SIM卡，保留香港號碼接聽電話，同時透過eSIM使用東南亞的本地數據服務，透過WhatsApp或FaceTime與家人保持聯絡。

東南亞 eSIM HK$8.07 起

Name: eSIM 东南亚
Brand: HelloRoam

HelloRoam是全球eSIM供應商，在185多個國家提供即時行動數據。購買預付費旅行eSIM方案，無額外費用，無合約，即時啟用。

东南亚 eSIM由HelloRoam，每天由HK$8.07起，連接204+個運營商網絡，覆蓋185+個國家。掃描QR code，2分鐘內完成啟動，保留原有香港SIM卡接聽電話。即到即連，免綁約，附180日退款保障及24/7即時客服。

194+
網絡
4G LTE with 5G in capitals
5G support
2分鐘內
啟動

更新2026年5月

東南亞旅遊數據套餐：泰越馬全境網絡覆蓋

东南亚平價 eSIM，低至 HK$8.07。連接當地頂級4G LTE及5G網絡，相容所有支援eSIM的手機。前往東南亞各地無需在每個機場購買實體 SIM card。HelloRoam Southeast Asia sim 方案透過 carriers across 3 countries 4G/5G 網絡覆蓋曼谷、胡志明市、吉隆坡、雅加達及馬尼拉，最低 HK$8.07 起。掃描 QR code 完成設定，即時上線，無需合約，附 180 天退款保障。

东南亚 eSIM with fast 4G LTE with 5G in capitals coverage

HelloRoam 東南亞eSIM計劃覆蓋11個國家，讓您在跨國旅行時隨時保持連線。一張eSIM，毋須更換SIM卡，抵達每個目的地後自動接入當地網絡，速度一般超過20 Mbps。

方案最低$1.03起，4G LTE with 5G in capitals速度
local networks提供覆蓋
2 minutes內即時開通
180天退款保證
东南亚主要城市全覆蓋

Network: 4G LTE with 5G in capitals
Plans From: $1.03
Activation: Under 2 min
Guarantee: 180 days

行程有變？不用擔心，我們為您保障！

行程隨時可能改變，不用擔心。使用HelloRoam，您可以在購買後180日內輕鬆申請eSIM退款。

了解更多退款政策詳情

HelloRoam 东南亚 eSIM vs CSL・SmarTone漫遊

比較eSIM與實體SIM卡及國際旅遊數據計劃：HelloRoam 东南亚 eSIM比CSL國際漫遊日費及中國移動香港數據漫遊附加服務更實惠。免去機場購買SIM卡的麻煩，免排隊，免換卡。由HK$8.07起享受本地網速，附180日退款保障。

HelloRoam 东南亚 eSIM vs CSL・SmarTone漫遊
Feature		本地電訊商	有限數據eSIM
180日退款保障
24/7 即時聊天支援
零啟動費用
99.8%服務穩定性保證
不設超額數據收費
即時QR Code發送
东南亚頂級運營商網絡

買東南亞 SIM卡之前要知道甚麼？

HelloRoam eSIM從HK$8.07起，透過carriers across 3 countries 4G/5G網絡提供數據服務。實體SIM卡需要到達東南亞後尋找攤位購買，排隊等候加上登記手續往往耗費半小時以上。eSIM出發前掃描QR code完成設定，抵埗後自動連接。
在東南亞機場或市區購買實體SIM卡，價格不透明且常有隱藏費用。HelloRoam方案從HK$8.07起明碼實價，無合約綁定，無漫遊附加費。QR code購買後即時發送到電郵，24小時均可下單。
eSIM寫入裝置韌體，保留你的香港號碼並連接東南亞當地carriers across 3 countries網絡。實體SIM卡換卡過程需要卡針，小卡片在旅途中容易遺失。eSIM用完即止，無需歸還，無需到門市辦理退卡手續。

實體SIM卡價格參考東南亞機場及市區門市售價。已於2026年1月驗證

為何選擇 HelloRoam 东南亚 eSIM

HelloRoam 與其他 eSIM 服務商比較 — 东南亚

選擇前往东南亚的 eSIM，關鍵在退款保障、零啟用費及全天候支援。HelloRoam 提供180天退款保障、HK$0 啟用費、24小時客戶服務，以及即時QR code 發送。了解 HelloRoam 與 Airalo、Holafly、Saily 及其他服務商的分別。

功能比較
功能比較		Airalo	Holafly	Nomad	Saily	Ubigi
180天退款保障
24小時即時客服
零啟用費
99.8% 網絡穩定保證
不收超額數據費
即時QR code 發送
东南亚優質電訊商網絡
獨立電訊商品牌識別碼 (SPN)

eSIM Coverage Guide for Southeast Asia Travel

Southeast Asia is the most popular multi-country travel corridor in the world, and staying connected across 11 countries used to require a new SIM at every border.

A HelloRoam Southeast Asia regional eSIM replaces that hassle with one plan that switches carriers automatically as you hop from Thailand to Cambodia to Vietnam to Laos.

Singapore leads the region with near-perfect 4G and 5G coverage from Singtel, StarHub, and M1. It is the region's most reliable data hub and works as a perfect test point before continuing to countries with weaker infrastructure.

Thailand is the region's top-performing network outside Singapore, led by AIS, DTAC, and True Move. Bangkok, Chiang Mai, Phuket, and Pattaya all have strong coverage. Popular islands like Koh Samui, Koh Phangan, and Koh Lanta have 4G in resort areas.

Remote northern highlands near Myanmar and Laos borders have gaps.

Vietnam connects through Viettel, Mobifone, and Vietnamobile. Ho Chi Minh City and Hanoi have dense coverage. Hoi An, Da Nang, and Hue are well-served. The northern mountain provinces (Sapa, Ha Giang, Ba Be National Park) have more limited signal in rural areas.

Indonesia presents the biggest coverage challenge in the region. Bali, Java (Jakarta, Yogyakarta, Surabaya), and Sumatra connect to Telkomsel, Indosat, and XL Axiata 4G. But Indonesia's 17,000+ islands mean outer provinces like Papua, Maluku, and remote Sulawesi have very poor coverage.

Globe Telecom and Smart Communications are both expanding 4G in the Philippines. Manila, Cebu, and Davao are well-served. Tourist islands vary widely from good coverage at Boracay to very limited signal on remote Palawan beaches.

Cambodia, Laos, and Myanmar have the region's most limited networks. Main cities and tourist hubs (Phnom Penh, Siem Reap, Vientiane, Luang Prabang, Yangon) have functional 4G. Rural areas often have no signal.

Covers all 11 Southeast Asian countries on one plan
Singapore provides the region's most reliable 5G network
Thailand, Vietnam, and Malaysia have the strongest overall coverage
Island hopping means losing data between ferry stops
Indonesia's outer islands have very limited coverage
Download offline maps before entering Cambodia, Laos, and Myanmar's rural areas

來源GSMA Mobile Economy Southeast Asia 2025; Ookla Speedtest Southeast Asia 2025

东南亚 eSIM旅遊貼士

No Data on Island Ferry Crossings
Ferry routes between Southeast Asian islands (Thailand's Gulf islands, Philippines' inter-island ferries, Bali to Lombok, Indonesian Gili Islands) have no mobile coverage once you leave the harbor. Download guesthouse addresses, ferry timetables, and offline maps for your destination island before boarding. GPS continues to work from your phone's hardware without data.
Thailand's Northern Highlands Have Coverage Gaps
The Golden Triangle area near Thailand's borders with Myanmar and Laos has limited 4G coverage. Chiang Rai's city center is covered, but mountain villages and border crossing areas have gaps. The border crossing from Chiang Rai to Luang Namtha in Laos by boat has no data for most of the journey. Download offline maps before departing.
Vietnam's Ha Giang Has Partial Coverage
Ha Giang's main town has Viettel and Mobifone 4G. The famous Ha Giang Loop motorbike route through northern mountain valleys has variable 4G in larger villages and no signal in remote valley passes. Download your entire loop route offline before starting. The Meo Vac and Dong Van areas can be completely without signal.
Singapore Is Your Reliability Checkpoint
When transiting through Singapore Changi Airport, test your HelloRoam eSIM thoroughly. Singapore's network is near-flawless and any eSIM activation issues show up clearly here. Resolving any problems in Singapore (with excellent airport Wi-Fi as backup) is far easier than discovering issues after arriving in Cambodia or Laos.
Bali's Tourist Areas Are Well-Covered
Kuta, Seminyak, Ubud, Canggu, and Uluwatu connect to Telkomsel and Indosat 4G. The rice terrace areas around Tegallalang have coverage. Nusa Penida and Nusa Lembongan islands have more limited coverage, particularly on southern cliffs and hiking trails. Download offline maps for Nusa Penida's cliff viewpoints.
Cambodia's Angkor Wat Has Reasonable Coverage
Siem Reap and the Angkor temple complex have reliable Smart Axiata and Cellcard coverage. The main Angkor temples including Bayon and Ta Prohm are covered. Remote and lesser-visited jungle temple areas further from the main complex have weaker signal. Download offline temple maps before exploring off the main routes.
Emergency Numbers Vary Across Southeast Asia
Emergency numbers differ significantly across Southeast Asia. Thailand: 191 (police), 1669 (ambulance). Vietnam: 113 (police), 115 (ambulance). Indonesia: 110 (police), 118 (ambulance). Philippines: 911. Singapore: 999. Malaysia: 999. Cambodia: 117 (police). Laos: 191 (police). Save country-specific numbers before each border crossing.

東南亞流動網絡覆蓋概覽

東南亞的流動網絡品質因地區和國家而異，主要城市覆蓋率通常超過90%。

港人最愛旅遊地區，泰國、新加坡、馬來西亞、峇里島均有良好4G LTE覆蓋。

泰國、新加坡、峇里島、越南、菲律賓等熱門目的地的網速通常可達20 Mbps以上，足夠使用地圖導航、WhatsApp及社交媒體。HelloRoam eSIM會在每個國家自動接入合作電訊商，手機越境時自動切換網絡，毋須手動設定。

AIS (Thailand): Network carrier
V Viettel (Vietnam): Network carrier
Singtel (Singapore): Network carrier
Telkomsel (Indonesia): Network carrier
Globe (Philippines): Network carrier
C Celcom (Malaysia): Network carrier

Best Times for Southeast Asia Travel Data

Southeast Asia's dry season generally runs from November to April, covering Thailand, Cambodia, Vietnam, and Laos. This is peak travel season and networks in popular tourist areas like Koh Samui, Hoi An, Luang Prabang, and Bali's main beaches face heavy demand. Crowded beach areas can see network congestion at peak times.

Bali's dry season (May to October) is peak tourist season. The wet season runs November to March with heavy rainfall that can occasionally affect outdoor tower infrastructure in rural areas.

The Philippines' typhoon season (June to November) can disrupt mobile infrastructure in affected islands. The Visayas and eastern seaboard are most affected by typhoon season. Download entertainment before typhoon forecasts materialize.

確認裝置相容性數據用量計算器

價格已驗證： 2026年5月31日

东南亚 eSIM 常見問題解答

Cheapest eSIM for Southeast Asia 首選 HelloRoam，覆蓋泰國、越南、馬來西亞及印尼，透過 carriers across 3 countries 4G/5G 網絡提供穩定連線，最低 HK$8.07 起。無需在國家之間更換 SIM card，一張搞掂整個東南亞旅程，無需合約。

HelloRoam travel eSIM Southeast Asia 方案出發前掃描 QR code 即可完成設定，透過 carriers across 3 countries 4G/5G 網絡提供連線，最低 HK$8.07 起。無需合約，無需信用審查，每份訂單附 180 天退款保障。

前往东南亚旅遊，HelloRoam是最佳eSIM選擇之一，連接204+個運營商網絡，覆蓋185+個國家，方案由HK$8.07起。在任何支援eSIM的解鎖手機上掃描QR code，兩分鐘內完成啟動，即享當地4G LTE及5G速度，附180日退款保障及24/7即時聊天支援。

东南亚 eSIM方案由每天HK$8.07起，固定數據由1GB至20GB不等。長途旅行可選擇無限量日費方案。所有HelloRoam eSIM方案均提供本地4G LTE及5G接入，不設超額收費，無需簽約。

抵達东南亚後，eSIM自動連接當地4G LTE及5G運營商網絡，選擇最強可用訊號。網絡覆蓋主要城市、機場、交通要道及大部分農村地區。HelloRoam全球接入204+個運營商網絡，確保穩定網速。

獲取HelloRoam 东南亚 eSIM只需三步。第一步，在helloroam.com選擇方案並完成結帳。第二步，在手機設定中選擇「加入eSIM」或「加入蜂窩方案」，掃描確認電郵中的QR code。第三步，eSIM在兩分鐘內完成安裝並啟動。前往东南亚毋需到門市，無需SIM卡，即到即連。

iPhone XS及以上型號均可使用HelloRoam 东南亚 eSIM。前往「設定」，點選「蜂窩數據」，再點選「加入eSIM」，掃描電郵中的QR code即可。雙SIM設定讓你的香港號碼保持接聽來電，HelloRoam同步處理旅遊數據。iPhone 14及以上的美國版本為純eSIM設計，無需SIM卡托。

HelloRoam 東南亞地區eSIM計劃覆蓋11個國家，手機在越境時會自動切換至當地最佳網絡，毋須更換SIM卡或手動設定。熱門目的地包括泰國、新加坡、峇里島、越南、菲律賓，整個旅程只需購買一次。

購買後，掃描QR code約5分鐘完成eSIM安裝。踏入東南亞任何覆蓋地區，手機自動接入當地合作電訊商，跨國時自動切換，速度一般可達20 Mbps以上，毋須手動操作。

前往東南亞多個國家的旅客，地區eSIM通常比在每個國家分別購買本地SIM卡更划算，同時省去換卡的麻煩。一張eSIM覆蓋11個國家，無需在每個國家重新設定或登記，特別適合行程跨越3個國家以上的旅客。

日數	價格
1 日	HK$27.12
3 日	HK$77.90
7 日	HK$181.66
15 日	HK$376.65
22 日	HK$527.59
30 日	HK$694.05

分類	推薦	各國本地SIM卡	香港電訊商國際漫遊
參考價格	—	—	—
詳情	一張eSIM覆蓋11個國家，一次購買，全程使用。越境自動切換網絡，毋須在泰國、新加坡、峇里島、越南、菲律賓等地分別購買本地SIM卡。出發前約5分鐘完成設定，抵達各目的地後立即上網。	需要在東南亞每個國家分別購買SIM卡，部分國家需護照登記，每次換卡耗時20至40分鐘。電話號碼每次都會改變，多國行程的合計費用往往更高。	CSL、3HK、SmarTone及中國移動香港的國際漫遊費每日約港幣80至200元。前往東南亞多個國家的長途旅程，漫遊費累積可達數千港幣。大多數計劃達到每日上限後會降速。

日數	價格
1 日	HK$27.12
3 日	HK$77.90
7 日	HK$181.66
15 日	HK$376.65
22 日	HK$527.59
30 日	HK$694.05

分類	推薦	各國本地SIM卡	香港電訊商國際漫遊
參考價格	—	—	—
詳情	一張eSIM覆蓋11個國家，一次購買，全程使用。越境自動切換網絡，毋須在泰國、新加坡、峇里島、越南、菲律賓等地分別購買本地SIM卡。出發前約5分鐘完成設定，抵達各目的地後立即上網。	需要在東南亞每個國家分別購買SIM卡，部分國家需護照登記，每次換卡耗時20至40分鐘。電話號碼每次都會改變，多國行程的合計費用往往更高。	CSL、3HK、SmarTone及中國移動香港的國際漫遊費每日約港幣80至200元。前往東南亞多個國家的長途旅程，漫遊費累積可達數千港幣。大多數計劃達到每日上限後會降速。