Measured Android to nrf52 maximum throughput over BLE 5.0

RE: Measured Android to nrf52 maximum throughput over BLE 5.0

user7377 — Fri, 25 Mar 2022 14:01:43 GMT

We do not have any overview of throughput with different phones. Even with the same phones, the throughput can vary in different situations, and also with new SW versions etc. You ca find some test results out there, though. For instance in this video, a nRF is communicating with a Samsung S8 and get a maximum throughput of close to 1200 kbps.

RE: Measured Android to nrf52 maximum throughput over BLE 5.0

user75226 — Fri, 25 Mar 2022 09:34:17 GMT

Many thanks for your reply.

It would be nice though to have some real figures involving smartphones so that we could know if we are far from what is achievable and if we need to pursue optimisation efforts either on nrf52 configuration or Android code side 🙂

nrf52 to nrf52 if obviously the ideal case as the hardware is awesome 😃 but it's also where we have more control.

It seems that when Android is involved, the direction of the stream changes the throughput. nrf52 to Android being much faster than Android to nrf52.

As a side note, on iPhone, I'm capped at about 500 kbps in both directions. I was expecting with Android to double the speed from Android to nrf52 compared to iPhone but it's actually slower... Tests were done with Samsung S20 and Google Pixel 4a.

RE: Measured Android to nrf52 maximum throughput over BLE 5.0

user7377 — Thu, 24 Mar 2022 09:00:51 GMT

Hi,

There are a lot of factors that affect throughput, and particularly when interfacing with a mobile phone, there are several of these factors you do not fully control. That said, the best case throughput you can expect using 1 Mbps PHY is about 700 kbps, and using 2 Mbps PHY it is about 1.4 Mbps. You can read more about measured throughput in this blog post: Throughput and long range demo.