The Samsung Galaxy S9+ features an elegant and sophisticated design with a glass front and back and an aluminum frame. This combination gives the device a sleek and shiny look.

The Samsung Galaxy S9+ has a large 6.2-inch Super AMOLED capacitive touchscreen display with a resolution of 1440 x 2960 pixels. The display is protected by Corning Gorilla Glass 5.

The Samsung Galaxy S9+ has a dual-camera system on the back, including a 12-megapixel wide-angle lens with an aperture of f/1.5 and a 12-megapixel telephoto lens with an aperture of f/2.4. The camera system is equipped with dual-LED flash, phase detection autofocus, and optical image stabilization. The primary camera can record up to 4K video at 60 frames per second and 1080p video at 240 frames per second. The front-facing camera is an 8-megapixel shooter with an aperture of f/1.7.

The Samsung Galaxy S9+ is powered by the Qualcomm Snapdragon 845 processor or Exynos 9810, depending on the region. It has 6GB of RAM and either 64GB or 128GB of internal storage, expandable up to 512GB with a microSD card. The device runs on Android 8.0 Oreo, which can be upgraded to Android 10.0 One UI 2.0. It has a 3,500mAh battery and supports fast charging and wireless charging.

The Samsung Galaxy S9+ features several security options, including a fingerprint scanner, iris scanner, and face recognition. It supports dual-SIM cards and 4G LTE networks. It also has WiFi 802.11 a/b/g/n/ac, Bluetooth 5.0, GPS, NFC, and USB Type-C. The device also has Samsung Pay.