BLE chip choice to pair with nRF9151

Hi,

We're planning to design a custom board using the nRF9151 for LTE connectivity. We'd like to add basic BLE support, with the following constraints:

  • The BLE chip will act as a slave to the nRF9151 (controlled externally).
  • We do not want to implement application logic inside the BLE chip.
  • The goal is simply to provide connectivity to nearby mobile phones or potentially emit a signal like an AirTag for localization.

We're currently evaluating the nRF52 series, specifically the nRF52805 and nRF52810, looking for the best balance between minimal BLE functionality, cost, and low power consumption, which is a very important factor in our design.

Are these two chips good candidates for our use case? Which one would you recommend?

We also wanted to ask:
Would you recommend using UART as the communication protocol between the nRF9151 and the BLE chip in this setup, or is there a better alternative for our minimal use case?

Thanks,

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