Surface Laptop 4 15in R7 16GB 512GB Win 10 Pro Black Breeze through deadline-filled days with 70% more speed, more multitasking power, and significantly longer battery life than before. All in a stylish, ultra-thin design. Choose from rich colours, two durable keyboard finishes, and 13.5- or 15-inch touchscreens. Battery Life: 13.5” AMD Ryzen 5 Microsoft Surface Edition processor – up to 19 hours, 15” AMD Ryzen 7 Microsoft Surface Edition processor – up to 17.5 hours, 13.5” Intel Core i5 – up to 17 hours, 15” Intel Core i7 – up to 16.5 hours. Battery life varies significantly with settings, usage and other factors. Performance for multitasking, meetings, and more Whatever the job and wherever it takes you, Surface Laptop 4 for Business is ready to meet your ever-evolving needs. Improved performance 11th Gen Intel Core and custom AMD Ryzen Microsoft Surface Edition processors deliver 70% more speed. Ultra-slim and light Choose from ultraportable 13.5- or 15-inch for more space to be productive. Sharp video and audio Stay fully engaged in calls with a front-facing HD camera, Omnisonic speakers and dual far-field mics. Removable SSD Maintain control of sensitive information with a removable solid-state drive for data retention.