iPhone XS has slightly smaller battery and more RAM than iPhone X - The Verge
Apple iPhone XS Vs iPhone XR: What's The Difference?
Apple Hub on Twitter: "Full specs including battery capacity and RAM inside the new iPhones have surfaced in regulatory filings. The iPhone XS and XS Max both feature 4GB of RAM, XR
Pricekart.com - iPhone XS vs iPhone XS Max vs iPhone XR vs... | Facebook
√ iPhone XR VS iPhone XS (Review Spesifikasi dan Fitur Unggulannya)
Por qué el iPhone XR es una opción mucho mejor que el iPhone XS | Back Market
iPhone XR vs. iPhone XS: ¿Merece la pena uno frente al otro? | Teknófilo
iPhone XS vs iPhone XS Max vs iPhone XR | TechRadar
El iPhone XR es el mejor iPhone que puedes comprar este año
iPhone XS specs vs. X, XR, XS Max: What's the same and different - CNET
iPhone XR vs iPhone XS vs iPhone XS Max: What Should You Buy? | Tom's Guide