Tested: Using the iPhone XS Smart Battery Case with iPhone X - YouTube
iPhone XS Smart Battery Case - Really...$129? - YouTube
Apple Iphone smart battery case for X | Apple iphone, Battery cases, Phone case accessories
Amazon.com: 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
Encased Belt Clip for Apple Smart Battery Case - iPhone X, iPhone XS (Holster Only, Case is not Included) - Walmart.com
Apple's iPhone XS Smart Battery Case Works With iPhone X - iOS Hacker
Apple Smart Battery Case review: Doubling down XR, XS, and XS Max battery life | CNN Underscored
Smart Battery Case for iPhone XS Appears to Be Compatible With iPhone X - MacRumors