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随身WiFi的下行速率受基站信号与套餐限速双重制约，即使标称支持300Mbps，实际4G环境通常20-50Mbps，选购不应只看理论峰值速率

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Unverified宣称'不限量'的随身WiFi套餐几乎都有达量降速阈值，通常用满100-200GB后降速至1-3Mbps，重度用户（每月>200GB）应直接看降速后速率而非总量85% similar Unverified警惕标称'无限流量'的随身WiFi，实际多数在超过100-200GB后触发限速（降至1-3Mbps），选购前需确认达量降速阈值和降速后的实际网速84% similar Unverified随身WiFi的实际网速受限于所在地基站负载和信号强度，与设备标称的下行速率（如300Mbps）无关，人流密集区（车站、景区）网速会显著下降83% similar Unverified随身WiFi的信号质量取决于内置基带模组和天线设计，同价位下芯片方案（如高通/紫光展锐）比外观参数更影响实际网速，标称的4G/5G理论峰值速率与实际体验差距较大83% similar Unverified运营商在售的4G LTE理论峰值下行约100-150Mbps，5G NSA约1Gbps，但实际速率受基站负载和信号影响，商圈晚高峰时段实测常降至标称的1/3以下82% similar

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