The biometric i am using is a heart monitor. the reason i did not mention it before now is a trademark issue we are working on. Please give me your idea of replacing the "O" in SOS using a white heart inside a red "O" with a simple red heart ECG signal graph running through it. Keep the phone signal on top. As an alternate replace the "O" entirely and just use a red heart with a white ECG graph in the heart and the phone signal above it.
i'll make a revision for you sir. but fyi the contest now on the judging phase, so the only one who can submit the revision is the 1st rank design.you can make my design at the 1st so i can submit the revision, after that you can rerank all designs as you like. regards