From ZDNet review
With the iPhone XS Max, Apple kept the same overall design as the iPhone X. A stainless steel housing band wraps the sides, broken up only by a new antenna band along the bottom. The front and back of the phone are covered in glass, once again allowing for Qi-standard wireless charging. The iPhone XS and XS Max come in three colors this year: Space gray, silver, and a new gold color.
The iPhone now carries an IP68 water and dust resistance rating, meaning it can withstand a dip in up to 2m of water for 30 minutes
The XS Max's OLED display is a massive 6.5 inches, with a resolution of 2688x1242 and a pixel density of 458ppi.
The iPhone XS Max supports HDR, both Dolby Vision and HDR10. To sum up the display in a word: Stunning. Watching HDR-enabled YouTube videos, I was mesmerized by the saturation and clarity.
On the bottom of the XS Max, you'll find a Lightning port to charge, sync, and listen to audio via Lightning compatible headphones.
Along the right side of the phone is where you'll find the SIM card tray and the side button
The back of the phone features a dual-camera system, complete with a camera bump. Both cameras are 12 megapixels and dual optical image stabilization.
Powering the iPhone XS Max is Apple's latest processor, the A12 Bionic. The 7-nanometer chip has six cores, two performance cores that are only used for resource-intensive tasks like gaming.
Another benefit of the new processor is the ability to handle storage of up to 512GB.