无物理SIM卡的互联网可行。
要点
- 1. eSIM：数字SIM，无物理。
- 2. 公共和免费WiFi。
- 3. 来自其他设备的热点。
- 4. 口袋WiFi/旅行路由器。
- 5. 付费WiFi（机场/飞机）。
结论
对旅行者，旅行eSIM击败所有其他选项。
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