My first Apple Watch was Spaceblack with SB link bracelet. I was VERY disappointed in both the haptic tap and the "little ding" for notifications. Could not feel the tap if up and moving about and the little ding could not be heard in my work environment most the time. Could not deal with this as my phone runs my company. The SB AW is now gone! Just received my new SS with brown loop a few days ago and the haptic tap is so much better I can feel it at even a lower setting. The little ding is no longer little and I can hear is much better though the tap is more than enough now and do not need to hear the ding anymore. Do not understand how one watch can differ so much from the other but the difference is huge for me!