The Samsung Galaxy S9+ was a flagship smartphone released in 2018. It was known for its large, immersive display, powerful performance, and innovative camera features.  

Here are some of its key features:

• Display: 6.2-inch Quad HD+ Super AMOLED Infinity Display  
• Processor: Exynos 9810 or Snapdragon 845 octa-core processor  
• RAM: 6GB of RAM  
• Storage: 64GB or 128GB of internal storage (expandable via microSD card)  
• Camera: Dual 12MP rear cameras with a variable aperture (f/1.5 and f/2.4) and an 8MP front-facing camera  
• Battery:
  3500mAh battery with fast charging and wireless charging  
• Operating System: Android 8.0 Oreo (upgradable to Android 10)  

The Samsung Galaxy S9+ was praised for its stunning display, powerful performance, and innovative camera features, especially the dual-camera setup with variable aperture lenses that allowed for better low-light photography.