Pet Mood Collar — Biometric Emotion Indicator for Dogs

Smart collar that reads heart rate, body temp, and movement patterns to display your dog's emotional state via color-changing LEDs. Pairs with a phone app for mood history and health alerts.

LED patterns map to calm, excited, stressed, and unwell states; the band is sized for medium and large breeds with a quick-release buckle. Data syncs over Bluetooth with optional cloud backup for your vet.