步骤 4
电源・通讯・SIM
此信息更新至 2026/08/11。
※ 通讯环境可能因地区和时期而异。
电压与插座类型
电压差异与插座形状
⚡120V / 60Hz
🔌Type A / B(扁平2孔)
🔄从日本/美国出发不需要转接头
💡日本插头（Type A）可直接使用。
SIM卡购买方式
机场与市区的SIM卡购买流程与费用
运营商: T-Mobile, AT&T, Verizon, Mint Mobile
eSIM与移动Wi-Fi
eSIM支持情况与Wi-Fi租赁选择
📶Widely available
🏢Airalo, Holafly, Ubigi, T-Mobile eSIM, AT&T eSIM, Mint Mobile eSIM
💰$5-30 for 1-10GB / 7-30 days
💡T-Mobile prepaid eSIM activates instantly; Mint Mobile best value for longer stays.
Wi-Fi环境
公共Wi-Fi普及状况与安全性
📡excellent
🏨Free and fast in most hotels; some luxury hotels charge extra
☕Free in cafes, libraries, airports, malls, and fast food chains
💡Starbucks, McDonald's, and public libraries are reliable free WiFi spots.
网络限制与VPN
社交媒体与网站的访问限制及VPN需求
🔒none
🚫None — all services freely accessible
🛡️不需要VPN。
💡No content restrictions; public Wi-Fi widely available.
实用当地App
交通、翻译、地图等便利应用
🚗Uber, Lyft, local transit apps
🗺️Google Maps, Apple Maps, Waze
💬iMessage, WhatsApp, Facebook Messenger
💡Uber/Lyft work in all major cities; Apple Maps best for walking directions.
国际电话
拨打国际电话的方式与通话App
📞+1 (United States)
🆘911 (Police, Fire, Ambulance)
📲Dial 011 + country code + number for international calls
💡Dial 1 + area code + number for domestic long-distance calls.