1. Design: The iPhone 12 featured a flat-edge design reminiscent of the iPhone 4 and 5. It had a Ceramic Shield front cover, aerospace-grade aluminum edges, and a glass back.

2. Display: The iPhone 12 had a Super Retina XDR display with HDR10 and Dolby Vision support. The display size was 6.1 inches, and the resolution was 2532 x 1170 pixels.

3. Processor: It was powered by the A14 Bionic chip with a next-generation Neural Engine, providing improved performance and efficiency.

4. 5G Connectivity: One of the significant additions to the iPhone 12 was 5G support, allowing for faster download and upload speeds.

5. Camera System: The iPhone 12 featured a dual-camera system with a 12MP ultra-wide and wide camera. Night mode, Deep Fusion, and Smart HDR 3 were some of the advanced camera features.

6. MagSafe: Apple introduced MagSafe technology with the iPhone 12, allowing for magnetic attachment of accessories like cases and wireless chargers.

7. iOS 14: The iPhone 12 ran on iOS 14, providing various new features and improvements to the operating system.

8. Storage Options: The iPhone 12 was available in different storage capacities, typically starting from 64GB and going up to 256GB.

9. Color Options: Available color options included Black, White, Green, Blue, and (Product)RED.

Please verify with the latest sources or the Apple website for the most up-to-date information on the iPhone lineup, as there may have been newer models released since my last update.