Hi Heather Michelson. In order for your walks to be synced to Grokker, they need to be completed as an actual exercise on Grokker. Please note that we don't sync steps. If you are recording these walks as an activity on your watch, can you verify under "Apple Health" on your iPhone that all categories are checked for Grokker? If that still doesn't help, please email us at support@grokker.com and we would be happy to help you troubleshoot this.