Bluetooth 5 range through human body (particularly outdoors when signal can't reflect off something as wall or floor...

Regarding range through human body, is bluetooth 5 coming with real improvements ? Can anyone testify ? for example, for a sensor behind the torso in the middle of the line of the shoulders...

Regarding nRF52840 which is coming with all BLE 5 options and especially long range with +4 dB improved gain, I guess that it must be better ; but is it really significant (particularly outdoors when signal can't reflect on walls or floors..) ?

What about nRF52832 ? is running bluetooth 5 will also help thanks to others new features (new advertising extensions, increased broadcast capacity and improved co-existence) ?

Thanks for you advices as I need to decide if I can continue to invest time and money to use bluetooth 5 with nRF52832 ? or really consider to migrate as soon as possible to nRF52840 ?

 

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  • As you have pointed out the main features of Bluetooth 5 are: Advertising Extensions, Long Range and 2M Phy(High Speed), in addition to the improved channel selection algorithm. 

    In terms of range through human body, Bluetooth 5 is still transmitting within the 2.4GHz ISM band, hence the human body will still absorb the signals if they pass through the body.  

    In terms of range you will see a significant increase when using the Coded PHY( either 125kbit or 500kbit). On top off that you can add the +4 dBm TX output power, max +8dBm,  if using the nRF52840. I suggest that you take a look at our Testing Long Range (Coded PHY) with Nordic solution (It Simply Works) blog post.

    If you should use the nRF52832 or the nRF52840 will depend on your use case, in terms of Bluetooth 5 features the only difference is that the nRF5280 supports the CODED Phy and the nRF52832 does not. In terms of hardware there are significant differences, e.g. more FLASH, more RAM and more peripherals on the NRF52804. Refer to the respective Product Specifications for more information. 

    Best regards

    Bjørn 

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