- Analysis by KJ David
Sony's highest-specked entry during the 2019 Mobile World Congress is the Xperia 1, a multimedia-driven flagship that was among the first to feature a 21:9 screen aspect ratio 
, which means that it has a more elongated form factor than a lot of competing upscale wide-screen smartphones. Its HDR OLED facade measures 6.5-inch diagonally and it boasts a premium-class (at least as of this Phonerated review) 3840 x 1644 4K resolution . Furthermore, it is furbished by a Gorilla Glass 6 panel , the latest iteration of Corning's scratch-resistant glass as we were checking out its specs.
This high-class Xperia model is not immune from some cons, though, one of which is its relatively-modest 8-megapixel-only selfie camera 
-- the XZ3, one of its direct predecessors, touts a 13-megapixel selfie shooter. We also find its 3330mAh raw battery capacity so-so, considering that, in comparison, some of its closest rivals pack 4000mAh on that front. That said, it does combine some of Sony's signature battery features , including Adaptive Charging and Smart Stamina.
Going back to its pros, the Xperia 1 boast a triple 12-megapixel primary cam decked out with hybrid OIS/EIS video stabilization and the Cinema Pro feature that enables users to capture videos in a 21:9 ratio. Additionally, like some of the best imaging-driven phones of its time, it offers a 960fps super slow-motion video capture mode and hardware-level bokeh shooting.
Heading over to its hardware pros and cons, this Xperia became one of the fastest smartphones when it arrived by running on Qualcomm's Snapdragon 855 triple-cluster octa-core engine whose main cluster peaks at 2.84GHz . It is accompanied by a 6GB RAM , which we flagged as a slight drawback, knowing that a few other models powered by a similar engine come with 8GB RAMs or higher.
Some of its other features include PS4 Remote Play coupled with Game Enhancer, the Dolby Atmos audio system, and an IP65/68-rated splash-ready shell that's offered in colors like Purple and and Gray.
With the Android 9.0 Pie ecosystem tying all its pros and cons together, the Sony Xperia 1 winds up as a viable choice for heavy multimedia junkies eying a relatively-slim large-screen smartphone.
On-paper Star rating: 
It's all well and good that the Sony Xperia 1 can record high-resolution 3840 x 2160 movies, but we were disappointed not to find any evidence of the Xperia 1 featuring an HDMI port (which is convenient to watch HD videos on your shiny HDTV.)
- We recommend: The latest HDMI phone models
It's frustrating that we could not find its weight information.
- We recommend: Photo gallery of the latest slim phones
The Sony Xperia 1 is trumpeted as a rugged phone (more sturdy, better water-resistance, etc).
- Also read: Photo gallery of the latest rugged phones
Its processor speed of Single 2.84GHz (+ Triple 2.41GHz + Quad 1.78GHz) combined with 8 cores is part of the fastest.
- See also: List of the latest octa-core smartphones
NFC is used by electronic payments and other applications.
We're dealing with a hefty display here, making it a phablet: 6.5 inches and a resolution of 3840 x 1644 pixels means about 15.31 square inches and an image quality of at least 642.14 dots per inch (DPI)!
The Sony Xperia 1 is not sold with a memory card but it supports up to 512GB of memory expansion, which is convenient to store photos taken with the built-in Triple 12-megapixel camera.
It includes an advanced built-in camera (Triple 12-megapixel) with the following options: Bokeh effect, HDR, Super wide-angle mode.
The selfie cam resolution seems just about average.
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