Apple Watch Series 4 (GPS, 40mm)
Up to 18 hours of battery life 🔋 Wi-Fi (802.11b/g/n 2.4GHz), Bluetooth 5.0 📶 GPS, Digital Crown with haptic feedback 👌 Electrical heart sensor (ECG app); ECG app coming later this year ❤ Second-generation optical heart sensor 💜 64-bit dual-core S4 processor; Up to 2x faster than S3 processor 🚀 Improved accelerometer and gyroscope for fall detection ⚡ Swim proof, watchOS 5, Aluminum case 💪