The Google Pixel Watch 4 features a brighter 3000-nit display with thinner bezels, enhanced durability with Gorilla Glass and aluminum, and is water-resistant. It runs on Wear OS 6.0 with Gemini AI integration, powered by a Snapdragon W5 Gen 2 processor and 2GB RAM. The smartwatch offers advanced health tracking for over 40 activities, dual-frequency GPS, and up to two days of battery life with fast charging.