Apple's new Smart Battery Case fits an iPhone X, but charging requires iOS 12.1.3
The best iPhone XS and iPhone XS Max battery cases | AppleInsider
Amazon.com: Feob Battery Case for iPhone Xs/X, Rechargeable 6500mAh Portable Charging Case Extended Battery Pack Cover Power Bank Charger Case for iPhone Xs/X[5.8 inch]-Black : Cell Phones & Accessories
Smart Battery Case Replacement Program for iPhone XS, iPhone XS Max, and iPhone XR - Apple Support
iPhone XS and XS Max - Smart Battery Case - YouTube
Apple iPhone XS Smart Battery Case Review: Worth Your Money?
Apple Smart Battery Case review (2019): A basic, effective iPhone add-on | Engadget
Best Buy: Apple iPhone XS Smart Battery Case Black MRXK2LL/A
Amazon.com: Alpatronix Battery Case for iPhone Xs Max, Rechargeable Wireless Charging Case Compatible with iPhone Xs Max (6.5-inch) Black (BXX Max) : Cell Phones & Accessories
Apple Smart Battery Case Review: iPhone XS/Max & XR design, wireless charging, still bulky [Video] - 9to5Mac
Apple Releases Smart Battery Cases for iPhone XS, XS Max and XR, Qi Wireless Charging Supported - MacRumors
iPhone XS and XS Max Smart Battery Case contains 10.1Wh battery, 13% larger capacity than previous cases - 9to5Mac
Tested: Using the iPhone XS Smart Battery Case on the iPhone X | AppleInsider
Amazon.com: Swaller Battery Case for iPhone X/Xs, 4100mAh Portable Protective Charging Case Extended Rechargeable Battery Pack Cover Charger Case for iPhone X/Xs (5.8 Inch) Pink : Everything Else
Apple introduces new $129 battery case for iPhone XS, XS Max and XR
Smart Battery Case Replacement Program for iPhone XS, iPhone XS Max, and iPhone XR - Apple Support
iPhone XS Max Battery Case, Exgreem 4000mAh Ultra Thin Rechargeable Portable Power Charging Case for iPhone iPhone XS Max Extended Battery Pack Power Bank Charger Case (Black) - Walmart.com