Xiaomi has now officially introduced a ‘secret feature’ of the Redmi 8 and Redmi 8A, that being that they both have what the company’s calling a sonic dust removal feature. It’s essentially just a way to clear out the dust and gunk that tends to gather up in smartphone speakers, which is a fairly common problem.
According to Xiaomi, the Redmi devices achieve this by playing a custom sound designed to achieve the maximum amplitude of the speaker for 30 seconds. This allegedly gets all the dust out by pure force, without damaging the speaker we’d hope. It’s an interesting solution to a common problem, and one that we’re surprised we haven’t seen elsewhere.
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The Redmi 8 and 8A have identically designed polycarbonate bodies. These phones come with P2i nano-coating for splash resistance. The Redmi 8 and 8A phone house 6.22-inch IPS LCD displays that offer 19:9 aspect ratio and HD+ resolution of 720 x 1520 pixels. The displays on both phones are protected by Gorilla Glass 5. These handsets measure 156.5 x 75.4 x 9.4mm and weigh 188 grams.
The Redmi 8 has a fingerprint scanner below its dual camera system. The said feature is not available on the Redmi 8A. The other common features available on the Redmi 8 and 8A include IR blaster, wireless FM radio, dual-SIM support, 4G VoLTE, Wi-Fi 802.11 b/g/n, Bluetooth 4.2, GPS and 3.5mm audio jack.
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