iOS support for BLE 5.0 extended advertisement.

[ak99]

I wanted to check if iOS 18 supports extended advertisements on coded PHY. I am not concerned with the advertisement payload limit but the increase in range that is possible due to the coded PHY channel configuration. But on the NRF connect app on iOS I see the coded PHY as PHY 3M, and when I keep both the primary and secondary channel config to be coded PHY, this advertisement is not discovered on the iOS whereas on android it is visible.

[Kenneth]

Hello,

I can see from the Apple Design Guidelines that the supported advertising PDU do not mention extended advertising/coded phy in specific, ref:
https://developer.apple.com/accessories/Accessory-Design-Guidelines.pdf 

So possible that explain why you may not expect it to work until it's in specific mentioned.

I can find this case which also discuss a bit this:
https://devzone.nordicsemi.com/f/nordic-q-a/115741/impossible-to-show-the-primary-and-secondary-phy-info-in-the-nrf-connect-ios-app 

Kenneth

[ak99]

I suspected this but wanted to confirm it, when I start advertising using the nrf connect app on android as the peripheral with Prim chnl:PHY1M and secondary PHY LE CODED, it shows up on the nrf connect app on ios as PHY 1M and PHY3M. I was not sure as to what this 3M is.