A brake light function would DEFINITELY be useful. I do almost all of my riding in the day using camera only mode.
A per your previous response, you correctly state that the braking function MAY not show clearly. I don't think this matters at all. If the brake function shows, then great. If it doesn't then nothing has been lost.
It should be simple to implement. If deceleration is greater than say 1G then slam on all of the lights, regardless of mode.
Thanks for getting in touch with us at Cycliq, and for your suggestion.
The new version of Fly6 does contain an accelerometer, however that is utilised by our incident protection application.
We don't intend to develop a brake light feature as the Fly6 has so many varied flashing sequence and light modes it would be difficult for people to perceive a distinct change in behaviour from what could be assumed as normal rear light function.
I hope this answers your question.
Am I right in saying that the second version of the Fly6 contains an accelerometer?
If that is the case, would it be possible to implement a brake light feature via a firmware upgrade? That is a feature that has been implemented on some products such as the lumicycle insight, the accelerometer detects the deceleration from braking and turns the light solid at a high setting to warn anyone behind.