The physical differences between iPhone 11 Pro and iPhone 11 Pro Max are: 11 Pro has 5.8 Inch display and Weight: 188 grams (6.63 ounces) while 11 Pro Max 6.5 Inch and Weight: Weight: 226 grams (7.97 ounces).
Table of Contents
Available Color
Iphone 11 Pro and Pro Max color available in Gold, Space Gray, Silver, Midnight Green.

Rated as IP68 under IEC standard 60529 make iPhone 11 can be soaked in the water up to 4 meters for 30 minutes.
Camera
Both models has 3 cameras 12MP for ultra wide, wide, and telephoto. Ultra Wide: ƒ/2.4 aperture and 120° field of view
Wide: ƒ/1.8 aperture
Telephoto: ƒ/2.0 aperture
Video Recording
4K video recording at 24 fps, 30 fps, or 60 fps
1080p HD video recording at 30 fps or 60 fps
720p HD video recording at 30 fps
Extended dynamic range for video up to 60 fps
Optical image stabilization for video (Wide and Telephoto)
2x optical zoom in, 2x optical zoom out; digital zoom up to 6x
Audio zoom
Brighter True Tone flash
QuıckTake video with subject tracking
Slo‑mo video support for 1080p at 120 fps or 240 fps
ime‑lapse video with stabilization
Cinematic video stabilization (4K, 1080p, and 720p)
Continuous autofocus video
Take 8MP still photos while recording 4K video
Playback zoom
Video formats recorded: HEVC and H.264
Stereo recording
User review
Fantastic phone and having gone back to iOS from years with Android, I am appreciating the rock solid app development that Apple invest in, the quality of the phone, and the fantastic battery life. I have it cased in a Mous case and screen so it is well wrapped up and I can’t comment on durability of new glass/steel construction. It’s too much money to find out the hard way. Is it worth extra money over the 11? Portrait with the 2x lens is fantastic. Ordinary photos don’t actually use the 2x lens, they use the same lens as 1x. The 0.5x is the most useful for room shots. I’d be tempted to go for normal iPhone 11 if choosing again. Not sure but think could do without 2x Portrait. Very much like the smaller screen than the 11 though so maybe it’s worth it after all.