- Analysis by KJ David
A 2018 Q4 addition to BLU's large-screen Vivo XL family, the BLU Vivo XL4 banks heavily on its expansive 6.2-inch 19:9 IPS display 
, which brings to mind the screens of some of the best phablets around the time of its unveiling. Apart from its size, however, there's not much to be excited about insofar as its screen is concerned, since it settles for a lowly (by 2018 phablet standards) 1520 x 720 HD+ resolution 
and, as a consequence, scores a paltry 271ppi pixel density -- several competing 6-inchers at least pass the 400ppi threshold.
Its 2GHz-only maximum processor speed (It runs on a MediaTek Helio P22 octa-core engine) sounds like a slight con as well, considering that, as we were reviewing its technical specs, the best octa-core smartphones available usually clock in at around 2.5GHz. Having said that, the fact that its processor is aided by what BLU calls AI Accelerated Technology , which essentially enables things like AI-powered photography and its AR emoji feature, makes its not-too-competitive raw speed a tad forgivable. Accompanying its processor is a so-so 3GB RAM.
Looking into the rest of its pros and cons, the Vivo XL4 is loaded with 32GB of on-board storage that can be expanded by up to 128GB , which we flagged as a slight perk, knowing that some of its BLU cousins listed here on Phonerated support only 64GB external memory cards. This 6.2-incher also comes with a 4000mAh Super Battery that obviously gives it an advantage versus many competing mid-rangers when it comes to life span.
Jumping over to its cameras, XL4 touts a respectable 13- plus 2-megapixel dual-lens system at the back , while a 13-megapixel front-facing camera, which comes with its own front-firing LED flash , is perched right above its large display. Its multimedia pros and cons also include the DTS audio technology that promises to deliver theater-like audio.
Also joining in are dual SIM card slots and 4G LTE Cat 7 connectivity of up to 300Mbps, which round out this Vivo model as a reasonable purchase for those eying a wide-screen middle-class Android that won't break the bank.
On-paper Review score: 
It's all well and good that the BLU Vivo XL4 can record fancy 1920 x 1080 clips, but we're surprised we didn't find any sign of the Vivo XL4 sporting an HDMI port (which comes in handy to watch HD videos on your shiny HDTV without having to move them first to your computer).
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It's disappointing that we could not find its weight information.
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Its processor speed of 2GHz spread across 8 cores is among the fastest among recent phones.
- Related link: List of the latest octa-core smartphones
The screen is big, making it a phablet: 6.2 inches and a resolution of 1520 x 720 pixels means about 14.84 square inches and an image sharpness of at least 271 dots per inch (DPI)!
- Related link: View other large smartphones and phablets
The Vivo XL4 is not sold with a memory card but it supports up to 128GB in memory expansion, which is convenient to store pictures and video clips taken with the built-in 13-megapixel (combined with a 2-megapixel sub-cam) camera.
Above-average camera resolution - of 13-megapixel (combined with a 2-megapixel sub-cam) - with these features: Wide Angle Mode.
The 13-megapixel selfie cam offers an above-average resolution.
** This phone is also known as: BLU XL4
*** These cons and pros are identified automatically based on our proprietary algorithm and the specs we found for this phone. Should you spot an error, please let us know.
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