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Unverified88% confidenceCautionTime unknown

2G网络已在多地退网，购买定位胸牌需确认支持4G（Cat.1或Cat.M），仅2G制式的老款将逐渐无法联网无法定位

1

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88%

Confidence

Medium-term (~90 days)

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-

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定位胸牌/挂件category

Related Claims

Unverified不要选仅支持2G网络的追踪器，多地已启动2G退网，设备会逐渐失去联网定位能力，应选4G Cat.1或以上制式89% similar Unverified选购前务必确认设备网络制式，2G定位器在多地已因2G退网无法使用，应选支持4G Cat.1或Cat.M（NB-IoT）的新款设备87% similar Unverified选购前需确认设备使用的网络制式：2G设备正随运营商2G退网逐步无法使用，应选4G Cat.1或Cat.M制式设备以保证长期可用87% similar Unverified只支持2G网络的GPS追踪器不建议购买，中国移动/联通2G网络已大面积退网，设备可能随时失联，应选支持4G Cat1或Cat M（NB-IoT）网络的型号84% similar Unverified选购前必须确认设备支持的网络制式，2020年后需选支持4G Cat.1或NB-IoT的产品，2G/3G基站已大面积退网，老旧2G定位器可能直接失去信号83% similar

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get_claim(id=404497)