touch ID : Integrated Touch ID sensor
Display : Retina display 13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors
Storage : 128GB PCIe-based SSD
Processor : 1.6GHz dual-core Intel Core i5, Turbo Boost up to 3.6GHz, with 4MB L3 cache
Memory : 8GB of 2133MHz LPDDR3 onboard memory
Battery and Power : Up to 12 hours wireless web Up to 13 hours iTunes movie playback Up to 30 days of standby time Built-in 50.3-watt-hour lithium-polymer battery 30W USB-C Power Adapter; USB-C power port
Size and Weight : Height: 0.16-0.61 inch (0.41-1.56 cm) Width: 11.97 inches (30.41 cm) Depth: 8.36 inches (21.24 cm) Weight: 2.75 pounds (1.25 kg)
Graphics and video support : Intel UHD Graphics 617 Support for Thunderbolt 3-enabled external graphics processors (eGPUs) Simultaneously supports full native resolution on the built-in display at millions of colors and: One external display with 5120-by-2880 resolution at up to 60Hz Up to two external displays with 4096-by-2304 resolution at up to 60Hz
Camera : 720p FaceTime HD camera
Connections and Expension : Two Thunderbolt 3 (USB-C) ports with support for: Charging DisplayPort Thunderbolt (up to 40 Gbps) USB-C 3.1 Gen 2 (up to 10 Gbps)
Wireless Support : 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible Bluetooth 4.2 wireless technology
Audio : Stereo speakers Three microphones 3.5 mm headphone jack
Keyboard and Trackpad : Full-size keyboard with: 78 (U.S.) or 79 (ISO) individual LED-backlit keys, including 12 function keys and 4 arrow keys Ambient light sensor Force Touch trackpad for precise cursor control and pressure-sensing capabilities; enables Force clicks, accelerators, pressure-sensitive drawing, and Multi-Touch gestures