What's the difference between cat 1 and 128M?

1 and Cat 1 have lower cost and power consumption. In terms of chip cost, the optimized system has higher integration, simpler module hardware architecture and lower peripheral hardware cost. 128M is relatively high.

2. Application scenarios of CAT1:wearable devices, smart home appliances, industrial sensors, hydrological and water conservancy detection, and port logistics tracking. * * * Enjoy the paid class. The requirement for broadband speed is not high, and it is battery-powered.

128M application scenarios: car networking, smart grid, 4G wireless routing, video security, commercial display equipment, 4G law enforcement instrument. Video live broadcast equipment. Wait a minute. The requirement for broadband rate is very high.

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1.In May 2020, the Ministry of Industry and Information Technology issued the Notice on Further Promoting the All-round Development of Mobile Internet of Things, clearly proposing to promote the migration of existing 2G and 3G Internet of Things services to NB-IoT, 4G and 5G networks. Among them, 4G Cat 1 has become the darling of Internet of Things communication with its stronger communication ability than NB-IoT and lower cost advantage than Cat 4.