Does number of services and characteristics affect speed/latency in BLE communication?

[Tibor Kakonyi]

Hi Team,

I am developing a product that is a combination of a mobile app and a hardware including an nRF52832. 
The hardware should notify the mobile app on events as quickly as possible. I am using 2 services (NUS + a custom one, 1 characteristic used on both of them) to send 2 types of data from the hardware to the phone.
I am wondering if sending all data with the same service & characteristic could help decrease latency?

Thank you,
Tibor 

[Sigurd]

Hi,

I am wondering if sending all data with the same service & characteristic could help decrease latency?

No. That won't help to decrease latency.

Decrease latency -> Set a low connection interval. You should be able to get it down to at least 15ms with most phones.

Increase throughput -> Use Data Length Extension (DLE), high ATT MTU size and 2M PHY

[Tibor Kakonyi]

Thanks for your answer, Sigurd!