For some reason the 255 can only alert you periodically on your cadence, HR, pace, etc. but the 255 Music can actually alert you when one of your running metrics are above or below a threshold.[1] Why is that? I understand the audio prompts on the 255 are going through the phone, then to the earbuds, but so what? The phone has the cadence, HR, pace info to be able to periodically prompt you about it at some interval, so why doesn't the 255 non-music also have the ability to audio prompt you (through the phone) when one of those metrics crosses one of your set limits?
