NB-IoT can directly eliminate the need for an external MCU

Power consumption: nb-iot wins more for gsm, nb

Real-time transmission, NB-IoT wins big (smart lock)

For smart locks, a remote unlocking command can't make the enterprise customer stand for a few minutes before unlocking the lock, it has to be able to unlock the lock immediately.

If we use NB-IoT to do it, we only need NB-IoT to standby in DRX mode, lte iot module the power consumption is about 1mA, and we don't need to establish a long connection. The total standby operating current is 1mA.

The power consumption of smart lock is 2/3 lower when using nb than when using gsm, and the push information of base station is more stable than that of server.

Low latency data transmission, NB-IoT wins big (locator)

The locator and anti-loss device products receive the server control command after a few minutes, which is a "low-latency transmission" scenario.

If we use NB-IoT, we can turn on to eDRX mode, and the delay of sending time can be adjusted to 5 minutes, and the total standby current is within 0.2mA.

The power consumption of the locator using NB is nearly 90% smaller than that of GSM.

High latency data transmission, NB and GSM tie (remote meter reading)

Remote meter reading, data collection, etc. are only once or twice a day, or even once every few days. At this time, although the average power consumption of GSM and NB can differ by 1-2 times, the base is very low, less than 0.01mA, which can be considered to have little impact on actual usage.