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iFixit: iPhone XS Has 'Notched' Battery and iPhone XS Max Has Apple-Designed Power Management Chip [Updated] - MacRumors
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iPhone XS and XS Max Have 4GB of RAM, XR Has 3GB; XS Max and XR Have Larger 3,174 and 2,942 mAH Batteries - MacRumors
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Amazon.com: Apple iPhone XS Max, US Version, 64GB, Gold - Unlocked (Renewed) : Cell Phones & Accessories
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