Key upgrades over the Nokia 8 Sirocco include a faster Snapdragon 845 chip and Adreno 630 GPU, a taller 6" 18:9 screen with HDR10 support, a higher resolution HDR selfie camera that can now record in 4K, more LTE bands, faster wireless charging, an in-display fingerprint scanner, and a slightly larger battery capacity. Storage and RAM are unchanged, with a single 128 GB/6 GB configuration. At the rear, a multi-camera setup is featured in a honeycomb-like arrangement with a dual-LED flash and time-of-flight sensor offset to the left and right respectively, and a hole for the microphone above. Externally, the 9 keeps the glass/metal construction of the Sirocco, but it shelves the Sirocco's stainless steel chassis in favor of 6000 series aluminum.
Cameras
The 9 PureView uses a penta-camera system with Zeiss optics, 2 of which are RGB sensors and 3 of which are monochromatic sensors. All 5 lenses are identical 12 MP f/1.8 units. HDR is supported, but the device lacks phase-detection autofocus and optical image stabilization. When a picture is taken, each camera takes a separate image, then the images are combined and processed by a digital signal processor. Pictures can be taken in both JPEG and RAW formats and can be edited afterwards through Adobe Lightroom, which can be installed during setup. Additionally, the 9 has a Pro mode which simulates DSLR settings. A feature called Depth Map captures more than 1200 layers of depth data. Depth Map is enabled by the time-of-flight sensor and only works with JPEG and RGB photos. At the front, a 20 MP sensor is present with HDR.
Software
The Nokia 9 ships with Android One's version of Android 9 Pie pre-installed. In December 2019, HMD began to release Android 10 for the 9 PureView.
Reception
concluded that the 9 "could be the right smartphone for shutterbugs, but there are better options for everyone else". Praise was directed towards the design, display and software; Tom's Guide and Digital Trends felt that the RAW-Lightroom integration provided users with significantly more control over photographs. The in-display fingerprint scanner and battery life were both criticized in addition to the loudspeaker's sound quality. Reviewers also noted that the image processing was slow and were disappointed that a camera-oriented phone lacked an SD card slot, especially considering the size of RAW image files. The usage of an older Snapdragon 845 chip also drew some criticism initially as its competitors were using the newer Snapdragon 855 chip. The 9 PureView received an overall score of 85 from DxOMark, with a photo score of 88 and a video score of 80. DxOMark remarked that "ith the possible exception of its Bokeh capability, the Nokia 9 PureView doesn’t deliver either a photo or video performance on a par with other current model phones in its premium price range." In February 2020, the 9 PureView won a Good Design Award 2019.
