iMac now offers a stunning Retina 4K display on the 21.5-inch model and an even more spectacular Retina 5K display on the 27-inch. And a wider color gamut means a palette of up to 25 percent more available colors. So photos and videos look crystal clear and vibrant, and text is razor sharp.

Key features
• 27-inch (diagonal) 5120-by-2880 Retina 5K display
• 21.5-inch (diagonal) 4096-by-2304 Retina 4K display
• Stunning 5mm thin design
• Intel Quad-core i5 processors
• Powerful AMD Radeon R9 M380, M390, or M395 graphics with 2GB video memory (27-inch)
• Intel Iris Pro 6200 graphics processor (21.5-inch)
• 802.11ac Wi-Fi
• Wireless and rechargeable Magic Mouse 2 and Magic Keyboard