Google has unveiled the Pixel 4 and Pixel 4 XL, its new own-brand flagship Android phones. The phones have Motion Sense, which uses a tiny RADAR sensor to read mid-air hand gestures, and power advanced face recognition for phone security. Google claims its face unlock is the fastest on the market, and requires no screen touch at all. This technology was first developed as Google's Project Soli. The OLED display supports an auto-adjusting refresh rate, up to 90 Hz. The Pixel 4 also reacts to squeeze gestures. The Pixel 4 comes with Google Recorder, which includes real-time, on-device voice recognition and dictation that produces searchable transcripts. The camera includes both standard (12 megapixel, f/1.7, 77-degree field of view) and telephoto (16 megapixel, 52-degree field of view) lenses, as well as multi-frame hi-res digital zoom. The improved HDR+ now supports live preview and dual exposure controls for greater creative control. An AI-powered white balance feature recognizes scene elements to provide better color. The improved portrait function uses both cameras. The new night mode supports astrophotography with long exposures up to 4 minutes. The larger XL model has a 6.3-inch QHD+ display and 3,700 battery, while the smaller model has a 5.7-inch FHD+ display and 2,800 mAh battery. Both models have a Snapdragon 855 processor, 6 GB of RAM, 64 or 128 GB of storage, and 18W fast charging. The Pixel 4 will be available from all major US carriers on October 24th, with pre-orders available today. It will start at $799 ($899 for the XL) and come in Just Black, Clearly White, and Oh So Orange.