You will need to download an app called battery phone

Photos can be seamlessly integrated into your Apple Watch SE, providing a multifunctional watch face that keeps you connected and informed. By downloading a compatible watch face, you can easily display your favorite photos while also accessing essential features like battery life and phone notifications.

The Apple Watch SE offers a versatile platform to personalize your watch face with photos, creating a unique and personalized experience. The multifunctional watch face not only showcases your cherished memories but also ensures that vital information such as battery status and phone alerts are always at your fingertips.