The iPhone XS and iPhone XS Max (stylized and marketed as iPhone Xs and iPhone Xs Max; Roman numeral "X" pronounced "ten") are smartphones designed, developed and marketed by Apple Inc. They are the twelfth-generation flagships of the iPhone, succeeding the iPhone X. They were announced on September 12, 2018 alongside the lower-priced iPhone XR at the Steve Jobs Theater in the Apple Park, Cupertino by Apple CEO Tim Cook, with pre-orders beginning September 14, 2018 and official release on September 21, 2018.
iPhone XS in gold (top/left), and iPhone XS Max in gold (bottom/right)
|Manufacturer||Foxconn (on contract)|
|Slogan||Welcome to the big screens.|
A2098 (sold in Japan)
A2100 (sold in China)
A2102 (sold in Japan)
A2104 (sold in China)
|Compatible networks||GSM, CDMA2000, EV-DO, HSPA+, LTE, LTE Advanced|
|First released||September 21, 2018|
|Availability by region|
XS Max: Phablet
H: 143.6 mm (5.65 in)
W: 70.9 mm (2.79 in)
D: 7.7 mm (0.30 in)
H: 157.5 mm (6.20 in)
W: 77.4 mm (3.05 in)
D: 7.7 mm (0.30 in)
|Mass||XS: 177 g (6.2 oz)|
XS Max: 208 g (7.3 oz)
|Operating system||Original: iOS 12.0|
Current: iOS 12.3.1, released May 24, 2019
|System on chip||Apple A12 Bionic|
|CPU||hexa-core (2.49 GHz Dual core Vortex, 1.52 GHz Quad core Tempest)|
|Modem||Intel PMB9955 (XMM7560[a])|
|Memory||4 GB LPDDR4X|
|Storage||64, 256 or 512 GB|
|Battery||XS: 3.81 V 10.13 W·h (2658 mA·h) Li-ion|
XS Max: 3.80 V 12.08 W·h (3174 mA·h) Li-ion
|Display||XS: 5.8 in (150 mm), 2436×1125 px |
XS Max: 6.5 in (170 mm), 2688×1242 px
All models: 458 ppi, Super Retina: Custom-built OLED HDR, true blacks, wide color gamut, 625 cd/m² max. brightness (typical), with dual-ion exchange-strengthened glass and 3D Touch
|Rear camera||12 MP (1.4 μm) (1/2.55") Sony Exmor IMX333-Inspired, quad-LED flash, ƒ/1.8 aperture, Optical image stabilization (both wide-angle & telephoto) quad-LED flash, autofocus, IR filter, Burst mode, 6-element lens, 4K video recording at 30 or 60 FPS or 1080p at 30 or 60 FPS, Slow-motion video (1080p at 120 FPS or 240 FPS), Time-lapse with stabilization, Panorama (up to 63 megapixels), Portrait Mode, Portrait Lighting, Facial recognition, Digital image stabilization, Dual Optical image stabilization, Stereo audio recording|
|Front camera||7 MP, f/2.2 aperture, burst mode, exposure control, face detection, auto-HDR, auto image stabilization, Retina flash, 1080p HD video recording
Portrait Mode, Portrait Lighting and Animoji(Same as iPhone X, XR)
|Other||FaceTime audio- or video-calling, IP68 IEC standard 60529 (splash, water, and dust resistant), Qi wireless charging, USB-C to Lightning (connector) fast charging|
|Hearing aid compatibility||M3, T4|
|Website||iPhone XS - Apple|
The XS Max is the first plus-sized iPhone in the new bezel-less form factor, as the 2017 iPhone X did not have a larger variant. Upon the release of the XS and XS Max, the X was discontinued, meaning that its shelf life of only 10 months was the shortest ever tenure as flagship device in the history of the iPhone. At release the XS and XS Max had starting prices of $999/$1099 in the US, £999/£1099 in the UK, €1149/€1249 in Europe, RMB8699/RMB9599 in China and ₹99900/₹109900 in India.
The XS has a design visually near-identical to the X but includes upgraded hardware, featuring the A12 Bionic chip built with a 7 nanometer process. It also features a 5.85-inch (149 mm) OLED display and contains dual 12-megapixel rear cameras and one 7-megapixel front-facing camera. The XS Max features the same hardware and cameras, but has a larger 6.46-inch (164 mm) OLED display and battery (3,174mAh). It was also noted by the media that the XS received a smaller battery than that of the X (dropping to 2,658 mAh from 2,716 mAh). The XS' battery is a new single-cell L-shaped battery, while the iPhone XS Max battery remains two cells like the iPhone X. Apple claims that the devices have faster Face ID technology.
The XS and XS Max are rated IP68 for dust and water resistance under IEC standard 60529, with Apple specifying a maximum depth of 2 meters and up to 30 minutes of submersion in water. This is an improvement over the IP67 water resistance of the iPhone 8 and X. Apple has performed tests in various liquids including chlorinated water, salt water, tea, wine, beer and juices.
Unlike the XR, both iPhone XS devices have optical zoom.
The XS and XS Max support dual SIMs through a nano-SIM and an eSIM. However, in mainland China, Hong Kong and Macau, the XS Max comes with a dual nano-SIM tray (and no eSIM). The XS does not have a dual nano-SIM tray so, the eSIM functionality is enabled for use in Hong Kong and Macau, but not in mainland China.
Rear camera upgradesEdit
iPhones starting with the iPhone 6S and iPhone 6S Plus, iPhone SE, iPhone 7 and iPhone 7 Plus, iPhone 8 and iPhone 8 Plus and iPhone X, have had their main camera: a 12MP (1/2.94") sensor size with a 1.22 μm pixel size. 
Starting with the iPhone 2018 Series, (XS, XS Max and XR), these iPhones have an updated 12MP (1/2.55") sensor size with a 1.4 μm pixel size, the same sensor and pixel size as the primary cameras of the Samsung Galaxy S10 , Samsung Galaxy S9 Samsung Galaxy S8  Samsung Galaxy S7 , Pixel 2, Pixel 3a and Pixel 3a XL , Pixel 3 and Pixel 3 XL. Moto X4 
Users reported problems charging the iPhone XS and XS Max with a Lightning cable. The device failed to charge if it had been idle for a while and would only begin to charge if the screen was turned on. This would occur due to a software bug with Apple’s “Disable USB accessories when locked” setting, a feature intended to prevent unknown devices from accessing a user's content within an iPhone. The press dubbed the issue "chargegate". The issue was resolved with the release of iOS 12.0.1 on October 8, 2018.
Excessive smoothing in selfiesEdit
Customers have also reported seeing unrealistic smoothness on their skin when taking a selfie by an automatic filter. Observers have noted that this face-smoothing effect is likely (and unintentionally) caused by the new Smart HDR camera feature on the XS and XS Max. This technology combines multiple photos of varying exposures to increase dynamic range on the iPhones' photos, but can also lead to less pronounced facial imperfections and decreased highlights in selfies. Some speculated this was the result of a hidden “beauty mode” (an actual feature in some smartphones) and dubbed the issue “Beautygate.” There has been a general dispute in the community as to whether the camera actually "intends" to "perfect" faces or if they just appear that way as result of a better quality camera.
Apple said that these results were due to the Smart HDR algorithm incorrectly selecting the blurrier long exposure as its base frame instead of the sharpest short exposure. The issue was resolved with the release of iOS 12.1 on October 30, 2018.
Reception and connectivity issuesEdit
Some iPhone XS users have had issues with LTE, Wi-Fi reception and Bluetooth connection. A radio expert claims a faulty antenna is to blame. Apple has contacted users for help with their investigation. iOS 12.0.1 addresses an issue where Bluetooth could become unavailable.
Timeline of iPhone modelsEdit
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- "iPhone XS Max Review – The New Way of Life - Compare Phones". Compare Phones.
- Daniel Yang & Stacy Wegner. "Apple iPhone XS Teardown". www.techinsights.com.
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- Hardy, Ed (September 13, 2018). "Geekbench scores reveal RAM upgrades in new iPhones". Cult of Mac. Retrieved September 18, 2018.
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- Kastrenakes, Jacob. "New iPhone XS and huge 6.5-inch XS Max announced". The Verge. Retrieved September 12, 2018.
- "iPhone XS, XS Max, XR specs: Battery size, RAM details revealed in new filings". PCMag. Retrieved September 20, 2018.
- Kelly, Gordon. "Apple's iPhone XS Has A Nasty Surprise". Forbes. Retrieved September 23, 2018.
- Rossignol, Joe. "iFixit: iPhone XS Has 'Notched' Battery and iPhone XS Max Has Apple-Designed Power Management Chip [Updated]". www.macrumors.com. Retrieved January 28, 2019.
- Miller, Chance (September 12, 2018). "iPhone Xs & iPhone Xs Max feature faster Face ID performance, Apple claims". 9to5Mac. Retrieved November 18, 2018.
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- Crook, Jordan. "Apple introduces the iPhone Xs and iPhone Xs Max". TechCrunch. Retrieved September 12, 2018.
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iPhone Xs and iPhone Xs Max are splash- and water-resistant rated IP68 and protect against everyday spills including coffee, tea and soda.
- Kelly, Gordon. "Apple iPhone XS Vs iPhone XR: What's The Difference?". Forbes.
- "iPhone XS - 技术规格". Apple (in Chinese). Retrieved September 16, 2018.
- "iPhone XS - Technical Specifications". Apple. Retrieved September 16, 2018.
- "iPhone XS - 技術規格". Apple (in Chinese). Retrieved September 16, 2018.
- Rossignol, Joe (August 20, 2018). "2018 iPhones May Feature Faster and More Efficient Wireless Charging With Switch to Copper Coil". MacRumors. Retrieved November 18, 2018.
- "iPhone XS improvements to Qi wireless charging limited to efficiency, not voltage increase". Apple Insider. September 18, 2018. Retrieved November 18, 2018.
- "Apple iPhone SE Teardown". www.techinsights.com. Retrieved March 14, 2019.
- "Apple iPhone 7 Teardown". www.techinsights.com. Retrieved March 14, 2019.
- "iPhone XS and XS Max Teardown". iFixit. September 21, 2018. Retrieved March 14, 2019.
- "Samsung Galaxy S10 and S10e Teardown". iFixit. March 6, 2019. Retrieved June 1, 2019.
- "Samsung Galaxy S9 Teardown". iFixit. March 9, 2018. Retrieved March 14, 2019.
- "Samsung Galaxy S8 Teardown". iFixit. April 17, 2017. Retrieved June 1, 2019.
- "Samsung Galaxy S7 Teardown". iFixit. March 8, 2016. Retrieved June 1, 2019.
- "Google Pixel 2 XL Teardown". iFixit. October 19, 2017. Retrieved June 1, 2019.
- "Compare Pixel 3a Tech Specs - Camera, Battery & Size - Google Store". store.google.com. Retrieved June 1, 2019.
- "Compare Pixel 3 Tech Specs - Camera, Battery & Size - Google Store". store.google.com. Retrieved June 1, 2019.
- "moto x (4th gen.)". Motorola. Retrieved June 1, 2019.
- "Apple silent amid iPhone 'chargegate' complaints". BBC. October 1, 2018. Retrieved October 5, 2018.
- "Apple silent amid 'chargegate' complaints". BBC News. October 1, 2018.
- Belam, Martin (October 1, 2018). "iPhone XS and XS Max: 'chargegate' sees some devices fail to charge". the Guardian.
- "Apple has revealed a fix for its huge charging problem". The Independent.
- JAMES HETHERINGTON (October 1, 2018). "Less than two weeks after launch, the iPhone XS and XS Max have a major problem". Newsweek.
- Antonio Villas. "Some iPhone XS owners are reporting that their new iPhones have problems charging". Business Insider.
- "Apple's iOS 12.0.1 update fixes slow reception, charging issues on iPhone XS". The Verge. Retrieved October 17, 2018.
- "Some people are saying Apple's new iPhone selfie camera automatically smooths your skin in photos — and they're calling it 'beautygate'". Business Insider. Retrieved October 6, 2018.
- "iPhone XS beauty-gate". cnet.
- Kelly, Gordon (October 23, 2018). "Apple Quietly Admits To iPhone Selfie Issue". Forbes. Retrieved November 18, 2018.
- Patel, Nilay (October 23, 2018). "Apple iPhone XR review: better than good enough". The Verge. Archived from the original on November 15, 2018. Retrieved November 18, 2018.
Apple told me that the forthcoming iOS 12.1 update, currently in public beta, will address the issue of the front camera appearing to smooth out skin by picking a sharper base frame for Smart HDR, but I wasn’t able to test it yet.
- Andrew J Shepherd. "[UPDATED] iPhone XS and XS Max mostly fail to impress in lab tested RF power output". Retrieved January 28, 2019.
- Clover, Juli. "Apple Looking Into LTE Connectivity Issues Affecting Some iPhone XS and XS Max Owners". www.macrumors.com. Retrieved January 28, 2019.
- "About iOS 12 Updates". Apple Support. Retrieved January 28, 2019.
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