I mentioned a lot of this in a comment on Tom's Guide's 13 Pro review, but I would like to repeat it here too. (Link to that comment):

Refurbishment procedures follow the same basic technical guidelines as Apple's Finished Goods testing procedures.The iPhone 13 Pro Max features a 6.7 inch Super Retina XDR display with ProMotion technology. It has rounded corners, wide colour and finger-print resistant oleophobic coating. The Camera

You should expect a graphics boost on the iPhone 13 Pro Max, as it vaulted ahead of the competition on the 3DMark Wild Life unlimited test. It registered a frame rate of 68.4 frames per second, compared to 54 fps for the iPhone 12 Pro Max and 34 fps for the Galaxy S21 Ultra. In China mainland, you can use ApplePay on the web in Safari only on compatible iPhone and iPad models using iOS11.2 or later. Some may simply prefer the iPhone 13 Pro because it’s smaller and lighter, as there are no other functional differences between the two handsets. But if you prefer a bigger screen, the iPhone 13 Pro Max is the closest thing to perfect you can get in a phone. iPhone 13 Pro and iPhone 13 Pro Max are splash, water, and dust resistant and were tested under controlled laboratory conditions with a rating of IP68 under IEC standard 60529 (maximum depth of 6 meters up to 30 minutes). Splash, water, and dust resistance are not permanent conditions. Resistance might decrease as a result of normal wear. Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions. Liquid damage not covered under warranty. The S22 is touted to have very impressive performance, courtesy of the Exynos 2200. By the way, to illustrate my point above even more clearly; the Exynos 2200 graphics are outperforming the A14 Bionic by over 50% while under throttling. I know... new gen vs last gen. Unfair, right?Interestingly, the iPhone 13 scored a slightly lower 4,436/1,668, which we think could be due to the Pro Max having more RAM. (Apple doesn’t reveal how much memory it puts into its different iPhone models.) Are you looking for something more ordinary? If color isn't your thing or you dislike the Sierra Blue iPhone 13 Pro's pastel looks, consider the Silver iPhone Pro, Gold iPhone Pro, or Alpine Green iPhone Pro.

HDR, Panorama, Night Mode, Portrait Mode, Bokeh Mode, Macro, Red Eye Correction, Burst Mode, Bokeh Effect Videos, Slow Motion, Time Lapse, Stereo Recording, Depth Auto Focus With new sensors and lenses for all three rear cameras, optimised to work seamlessly with iOS 15 and powered by the new image signal processor (ISP) in A15 Bionic for improved noise reduction and tone mapping, the iPhone 13 Pro lineup features the best camera system ever on iPhone. The all-new Wide camera has a larger sensor with 1.9 µm pixels, the largest ever on iPhone, for less noise and faster shutter speeds needed across lighting conditions, producing even more detailed photos. Coupled with the larger ƒ/1.5 aperture, the Wide camera on iPhone 13 Pro and iPhone 13 Pro Max offers a massive improvement in low-light situations, up to 2.2x when compared to iPhone 12 Pro, and nearly 1.5x when compared to iPhone 12 Pro Max. Sensor-shift optical image stabilisation (OIS) — unique to iPhone — is available on both models, stabilising the sensor instead of the lens, so images are smooth and video is steady, even when the user is not. Consumer finance on the Apple Online Store is brokered by Apple Retail UK Limited, which acts as a credit broker and not the lender. Apple offers finance from a restricted range of finance providers and Barclays Partner Finance, which is a trading name of Clydesdale Financial Services Limited, a member of the Barclays Group. Clydesdale Financial Services Limited is authorised and regulated by the Financial Conduct Authority (Financial Services Register number: 311753). Registered in England. Registered no.: 2901725. Registered office: 1 Churchill Place, London E14 5HP. Subject to application and status. Full terms apply. Developers make great apps for Apple devices, and that hasn't slowed down with iOS 15's release. We'd suggest loading up on some of the best iPhone apps or, if you're new to the platform, grabbing the best apps for a new iPhone.Magnetometer, Barometer, Accelerometer (G-Sensor), Proximity Sensor, Gyroscope Sensor, Light Sensor A faster Neural Engine in A15 Bionic, new ISP, and advancements in computational photography power the all-new camera features on iPhone 13 Pro and iPhone 13 Pro Max. Photographic Styles allows users to bring their personal photo preferences to every image while still benefitting from Apple’s multi-frame image processing. Preset and customised preferences work across scenes and subjects, and unlike a simple filter, intelligently apply the right adjustments to different parts of the photo to ensure the important elements, like skin tones, are preserved. For the first time ever, Night mode comes to all cameras on iPhone 13 Pro and iPhone 13 Pro Max, including the Telephoto camera, and with Smart HDR 4, users can expect improved colour, contrast, and lighting for subjects, even in group shots or challenging lighting situations, making images more true to life. iPhone 13 Pro and iPhone 13 Pro Max also offer popular features like Deep Fusion, Apple ProRAW, and Portrait mode with Portrait Lighting. iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone X S, iPhone X S Max, iPhone X R, iPhone SE (2nd generation), iPhone SE (3rd generation), iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12, iPhone 12 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 15 and iPhone 15 Plus are splash, water and dust resistant and were tested under controlled laboratory conditions; iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12, iPhone 12 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 15 and iPhone 15 Plus have a rating of IP68 under IEC standard 60529 (maximum depth of 6 metres up to 30 minutes); iPhone 11 Pro and iPhone 11 Pro Max have a rating of IP68 under IEC standard 60529 (maximum depth of 4 metres up to 30 minutes); iPhone X S, iPhone X S Max and iPhone 11 have a rating of IP68 under IEC standard 60529 (maximum depth of 2 metres up to 30 minutes); and iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone X R, iPhone SE (2nd generation) and iPhone SE (3rd generation) have a rating of IP67 under IEC standard 60529 (maximum depth of 1 metre up to 30 minutes). Splash, water and dust resistance are not permanent conditions. Resistance might decrease as a result of normal wear. Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions. Liquid damage not covered under warranty.

Battery life claim refers to larger models. All battery claims depend on network configuration and many other factors; actual results will vary. Battery has limited recharge cycles and may eventually need to be replaced. Battery life and charge cycles vary by use and settings. See apple.com/ uk/batteries and apple.com/ uk/iphone/battery.html for more information. The news is not that great on the charging front, as the iPhone 13 Pro Max reaches just 50% capacity after 30 minutes using a 20W UBC-C charger, while other phones like the OnePlus 9 Pro and Xiaomi 11T Pro can get to 100% in 30 minutes or less. MagSafe charging, while convenient, is even slower at 15W. Notch, Super Retina XDR Display, HDR-Display, Haptic Touch, Always On Display, ProMotion, True Tone

The most advanced pro camera system ever on iPhone; Super Retina XDR display with ProMotion; a massive leap in battery life; A15 Bionic, the fastest chip in a smartphone; an advanced 5G experience; and so much more In terms of benchmarks, the iPhone 13 Pro Max once again destroys the Android competition. In Geekbench 5, which measures overall performance, the iPhone 13 Pro Max notched a multi-core score of 4,549 and a single-core score of 1,720. The Galaxy S21 Ultra hit 3,440 and 1,123, respectively, while the iPhone 12 Pro Max reached 4,111 and 1,603. Apple Certified Refurbished Products are pre-owned Apple products that undergo Apple's stringent refurbishment process prior to being offered for sale. While only some units are returned due to technical issues, every unit is evaluated to ensure it meets Apple's quality standards.