中国手机上网指南：SIM卡、eSIM与VPN | Getting Online in China: SIM, eSIM & VPN Options

三大运营商对比 / Big Three Carriers Compared

办卡流程 / Getting a SIM Card

机场国际到达大厅均有运营商柜台，营业至末班航班。所需材料：护照原件。办理时间约15分钟，现场激活。套餐通常含通话分钟数+流量，超出后可充值（微信/支付宝/门店均可）。

All three carriers have counters in international arrival halls, open until the last flight. Required: passport. Processing takes ~15 minutes with instant activation. Plans typically include call minutes + data; top up via WeChat/Alipay/store when exceeded.

eSIM方案 / eSIM Solutions

优点：出发前在线购买，落地开机即用，无需排队。缺点：仅含数据流量，无中国号码（无法注册需手机号的本地服务）。推荐平台：Airalo（7天5GB约$8）、Holafly（无限流量$7/天）、Nomad eSIM。

Pros: Buy online before departure, works immediately on arrival, no queuing. Cons: Data only, no Chinese phone number (can't register for services requiring one). Recommended: Airalo (7-day 5GB ~$8), Holafly (unlimited $7/day), Nomad eSIM.

VPN必备 / VPN Essentials

在中国使用Google、WhatsApp等服务需VPN。务必出发前安装——到了中国无法从应用商店下载。推荐ExpressVPN（最稳定）、Astrill（速度快）。注意：节假日和敏感时期VPN速度可能下降，多备一个备用方案。