The iPad 4, also known as the iPad with Retina display, was a significant upgrade when it was released in 2012. It featured a 9.7-inch Retina display with a resolution of 2048 x 1536 pixels, offering sharp and vibrant visuals.

Key Features:

• Processor: Apple A6X chip
• Display: 9.7-inch Retina display (2048 x 1536 pixels)
• Storage: Available in 16GB, 32GB, 64GB, and 128GB variants
• Camera: 5MP rear camera and 1.2MP front camera
• Connectivity: Wi-Fi and optional cellular connectivity (4G LTE)
• Operating System: iOS 6 (upgradable to iOS 10.3.3)

While it's an older device, the iPad 4 can still be used for basic tasks like browsing the web, reading e-books, watching videos, and playing games. However, it may not be as powerful or feature-rich as newer iPad models.

Keep in mind that as an older device, it may have limited software support and app compatibility.