Stay online
anywhere you travel.
From the moment you land, your maps and social apps just work.
No app, no SIM swap. Set up in about 3 minutes — 200+ countries and regions.
Why Xiao Long eSIM
Benefits
Never swap SIMs again
Changing SIM cards every time you cross a border is a hassle.
One eSIM covers 200+ countries and regions. Keep using it as you travel.
No more hunting for Wi-Fi
Looking for café or hotel Wi-Fi wastes time, and it is often slow.
Your phone connects on its own. Set up with a QR code or a one-tap link in about 3 minutes.
Truly unlimited, not throttled
Many "unlimited" plans slow to a crawl once you use a little data.
Our unlimited plans run at 10–20 Mbps with no slow-down. Carrier-official plans run at full local speed.
Sign up in 3 easy steps
3 Easy Steps
Choose a plan
Pick your destination and the data you need, then pay online. No account needed.
Install the eSIM
Open the one-tap link or scan the QR code in the email. It takes about 3 minutes.
Turn it on abroad
Switch on data roaming when you land. That is all — you are connected.
Frequently asked questions
FAQ
What is an eSIM?
Which countries can I use it in?
When can I start using it after buying?
How do I set it up?
Three Plan Types — Which One Fits You?
We offer three plan types. This is all you need to know to choose.
♾️ Truly Unlimited Plan
For worry-free heavy use
Truly unlimited data at 10–20 Mbps — no throttling, no data cap. Stream and tether without watching your usage.
🔄 Daily Data Refresh Plan
Great value for longer stays
A daily high-speed allowance that resets every day. Even after you use it up, data keeps flowing at a reduced speed — you never lose connection.
⚡ High-Speed Data Pack
When you know how much you need
Pick a data amount and use it at full speed until it runs out. A no-waste choice for maps, social media and email.
Popular Plans
Pick the plan that fits your trip (prices in USD)
♾️ China Truly Unlimited
Mainland China
- ✅ Ultra affordable
- ✅ No VPN needed
- ✅ Instant activation
♾️ Japan Truly Unlimited
Japan
- ✅ docomo/au network, no APN setup
- ✅ Tethering OK
- ✅ Instant activation
⚡ Global 125 Countries High-Speed Pack
125 countries worldwide
- ✅ Works worldwide
- ✅ Many data options
- ✅ Auto carrier switch
Price Comparison
7-day unlimited plans compared. Official USD prices obtained in October 2026.
What “unlimited” actually means differs by provider
Based on each provider’s official site and terms (as of September 2026, our survey)
And still, we are among the cheapest for most destinations.
If you do not want to compromise on speed, data or price — give us a try.
* 7-day unlimited plans, official prices surveyed in October 2026. Unavailable competitor prices are omitted. Savings are rounded against the lowest listed competitor price. Coverage, speeds and fair usage policies (FUP) vary by provider. Plans marked * have FUP restrictions.
How ItWorks
Get started in just 3 easy steps
Select Plan
Choose the best plan for your destination and travel dates.
Purchase & Payment
Pay with PayPal (credit/debit cards), Apple Pay, Google Pay — and USDT (TRC20). Simple, safe and secure payment options.
Set up via quick-install link or QR code
Click the quick-install link in your email or scan the QR code — setup takes under 3 minutes and you’re ready to go.
Customer Reviews
Published reviews from our customers. Translated reviews indicate the original language.
可靠。比其他旅遊用 eSIM 便宜。能連上訊號更好的網路。立即啟用 👌譯自英文原文。
購買時付款出了問題，所以我買了 WISE_E-SIM，但流量不夠，於是又加購了這個方案。連線穩定，而且流量無限，感覺非常划算，下次也會繼續使用。譯自日文原文。
價格便宜、設定簡單、客服出色……完全無可挑剔。這次是在台灣使用，下次出國時，我會優先考慮這家。譯自日文原文。
安裝非常簡單，速度很好，也有不同的網路可用，具備5G覆蓋，性價比也非常高。譯自英文原文。
我之前一直使用其他業者的 eSIM，雖然標榜無限，實際上一天用超過 5GB 就會被降速。這次抱著半信半疑的心情試用小龍的 eSIM，結果用超過 5GB 也沒有降速，甚至超過 7GB 仍然維持高速，能以最高畫質觀看 Netflix。真的很驚訝，而且價格便宜。今後也會繼續使用。譯自日文原文。
如您所知，中國大陸是 QR Code 支付的大本營。沒有行動網路，連購物都出不了門，這樣說一點也不誇張。因此最好能有從入境那一刻起就能使用的通訊方式。
事實上，上次前往深圳時，我在香港買的行動 SIM 卡用完了，只好急忙跑到羅湖站再買一張。像在日本那樣靠公共 Wi-Fi 撐過去，其實相當辛苦。有沒有可靠的通訊方式，對旅行品質影響很大。
這次我使用了小龍的 eSIM，關鍵有兩點：一是我很早就在 Twitter 上看過相關資訊，二是有真正無限的吃到飽方案。後者特別重要，被限速非常麻煩，速度下降也會讓體驗變差。我不誇張，確保頻寬真的很重要。
還有一點值得推薦，就是客服的速度與解決問題的能力。
入境後確認可以連線，我馬上使用了叫車 App。搭車過程沒問題，但下車時連線中斷，差點和司機起爭執，所幸最後順利解決。
不過連線中斷還是很困擾，抵達飯店後我聯絡了客服，沒想到當天就獲得處理，也幫我調查了原因。網路很重要，所以客服也很重要。基於以上這些理由，這是一張我可以放心推薦的 eSIM。謝謝。譯自日文原文。
我在首爾市區和驪州 Premium Outlets 使用了四天。
首先，eSIM 的設定非常簡單，很順利就開始使用了。
當地的連線速度也很快，移動時使用同樣舒適。尤其是 LINE 的視訊通話，聲音和畫質都非常好，通話完全沒有壓力。因為是真正無限，不必擔心數據用量，讓人很安心。
我覺得這是很推薦給韓國旅行的 eSIM。下次去韓國也一定會再使用！譯自日文原文。
起飛前購買，降落後馬上就能用。從機場到工業區都沒有斷訊。可以聽 Amazon Music、YouTube Music，也能看 Netflix，價格便宜又是固定資費，很不錯。偶爾在電視上看 Netflix 又同時用手機看影片時，如果能有網速升級選項會更好。譯自日文原文。
Translated from Japanese.
我目前派駐在中國。
平常都是連 VPN 看影音內容，但 VPN 偶爾會連線不穩，所以一直在找一款以備不時之需、方便使用的 eSIM。
用起來完全沒問題。
這樣即使 VPN 不能用的時候也能安心了。譯自日文原文。
Translated from Japanese.
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