Rescue dogs often enter shelters or homes with no reliable medical history and may hide pain or illness, making early detection of health issues difficult. Care is usually shared across shelters, fosters, and adopters, yet information rarely follows the dog. This results in fragmented care and preventable health complications that disproportionately affect rescue animals. Existing pet wearables assume a collar-always-on lifestyle, which is not the reality for many rescue dogs who may not tolerate devices, remove them indoors, or cycle through multiple environments.