Superseded85% confidenceSolutionTime unknown
境外旅行选卡：短期(≤7天)优先eSIM即买即用免换卡，中期(7-15天)选实体旅行SIM性价比更高，多国行程选覆盖区域卡(如欧洲通用、东南亚通用)而非单国卡
1
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85%
Confidence
Long-term
Relevance
-
First Seen
This knowledge claim has been superseded by newer content
长期停留（≥1个月）建议购买当地实体/eSIM卡而非运营商国际套餐，当地卡本地通话资费通常仅为国际漫游的1/10，配合网络电话（WhatsApp/微信语音）可覆盖回国需求Sources
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