Samsung has announced its flagship Galaxy Note10 and Galaxy Note10+ smartphones at an event in the US, as it had promised. These pack a 6.3-inch FHD+ and 6.8-inch Quad HD+ Curved Dynamic AMOLED Infinity-O Displays, feature in-display Ultrasonic Fingerprint Scanner that reads the 3D contours of user’s physical thumbprint for improved anti-spoofing and a re-designed, uni-body Bluetooth Low Energy-enabled S Pen with Air actions customizable gesture controls, handwriting-to-text conversion to MS Word, PDF and more, Screen off memo in 5 colors and more. The S Pan has built-in Lithium-titanate battery that lasts 10 hours with a single charge, yet weighs just 3.04 grams.