Does my phone support eSIM?

Any iPhone XS, XR or newer supports eSIM. Most flagship Android phones from 2020 on do too — Google Pixel 4 and later, Samsung Galaxy S20 and later, and many others. Phones bought in mainland China may have eSIM disabled by the carrier.

Should I install the eSIM before or after I fly?

Install it BEFORE you fly, while you have Wi-Fi at home. Activation needs an internet connection. Then simply switch it on when you land — you'll be online in seconds, no airport Wi-Fi needed.

Will I lose my home phone number?

No. Modern phones support dual SIM, so your home SIM stays active for calls and texts while data runs through your travel eSIM. Just set the eSIM as your data line and turn off data roaming on your home SIM.

eSIM 怎么用？如何安装激活 eSIM（2026 iPhone 安卓图文教程）| Beaver eSIM

四步搞定

买套餐，拿到二维码。用 Beaver 在 app 里买，eSIM 立即就绪——不用翻邮件。出发前在家连 WiFi 装好。
打开 eSIM 设置。iPhone：设置 → 蜂窝网络 → 添加 eSIM。安卓：设置 → 网络和互联网 → SIM 卡 → 添加 eSIM（各品牌措辞略有不同）。
扫码或一键安装。用相机对准二维码，或在 Beaver app 里点安装自动配置。跟着提示走——标签命名"旅行"方便找。
落地后开启。把 eSIM 设为数据线路，关掉国内卡的数据漫游，就上网了。国内卡保持开启收电话短信。

iPhone 和安卓 — 小区别

iPhone (XS or newer): everything lives under Settings → Cellular. You can hold several eSIMs and switch which one carries data with a tap. Turn on "Allow Cellular Data Switching" off so it doesn't fall back to your pricey home line.

Android (Pixel 4+, Galaxy S20+, and most 2020+ flagships): it's under Settings → Network & internet → SIMs. The menu names differ a little between Samsung, Google and others, but the flow — Add eSIM → scan QR → enable — is the same.

落地之后

The single biggest mistake travelers make is trying to set everything up on slow airport Wi-Fi while jetlagged. Don't — you already installed the eSIM at home. 落地之后, just:

Turn on the travel eSIM for mobile data.
Turn off data roaming on your home SIM (so it can't rack up charges).
Toggle airplane mode on and off once if it doesn't connect immediately.

常见问题排查

The QR code won't scan

Use the Beaver app's one-tap install instead of scanning, or enter the activation details manually (Settings → Add eSIM → Enter Details Manually). Make sure you're on Wi-Fi — activation needs internet.

It installed but there's no signal

Check that the eSIM is set as your data line and that data roaming is enabled for the eSIM itself (this is normal and expected for a travel eSIM). Toggle airplane mode once. If still nothing, you may not have landed in a covered area yet.

"Cellular Plan couldn't be added"

This usually means the eSIM was already installed once (each QR installs once). Reinstall from the Beaver app, which reissues it, or contact support@beaveresim.com.

eSIM 怎么装、怎么用

四步搞定

iPhone 和安卓 — 小区别

落地之后

常见问题排查

下一步