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Razer Kiyo Pro Ultra: What to Know
The sensor is a 1/1.2-inch Sony STARVIS 2 with a wide f/1.7 aperture and 2.9-micrometer pixels, which Razer says captures roughly 3.9 times more light than a typical webcam sensor, a real, physical comparison based on pixel and aperture size, even if 'looks better in low light' as an end result is still a subjective judgment call rather than something we measured ourselves. Field of view adjusts between roughly 72 and 82 degrees depending on the resolution and zoom level selected.
On frame rate, it's worth being precise because Razer's own materials aren't perfectly consistent in casual marketing copy versus technical spec sheets: the sensor natively captures 4K at 30fps, but Razer's spec documentation separately lists the uncompressed 4K output to your stream at 24fps, with 1440p available at 30fps and 1080p at up to 60fps. In short, the camera captures 4K30 at the sensor, but what comes out uncompressed over USB tops out at 4K24, a bandwidth tradeoff rather than a marketing error, but one worth knowing if 24fps at 4K feels choppier than you expect for calls.
AI-powered facial-tracking autofocus, automatic light correction, and HDR (available at 30fps) round out the imaging features, and Razer includes a true optical bokeh effect, background blur created by the lens itself rather than software processing, which the company markets as more natural-looking than AI-simulated blur.
Hardware extras include a built-in microphone and a physical privacy shutter, an included L-shaped clamp mount, a lens cover, and a 5-foot braided USB-C cable. Deep customization (ISO, shutter speed, pan/tilt/zoom) runs through Razer Synapse software, which Tom's Hardware and other reviewers have flagged as capable but occasionally clunky to navigate, a software criticism worth knowing about separately from the hardware's genuine image quality.
Key Listed Features
1/1.2-inch Sony STARVIS 2 sensor, f/1.7 aperture, 2.9μm pixels
4K30 native capture; uncompressed output listed at 4K24/1440p30/1080p60
AI facial-tracking autofocus, HDR at 30fps, optical (lens) bokeh
Built-in mic and privacy shutter, USB-C, Razer Synapse controls
