Over the years, we've seen smartphone charging speeds going from the already-impressive 30 minutes down to 15 minutes, but apparently that's still too slow for Xiaomi.The Redmi Note 12 Discovery Edition also sees the debut of MediaTek's mid-range Dimensity 1080 processor, and it's completed with a 6.67-inch OLED screen (2,400 x 1,080, 120Hz), a 200MP main camera (Samsung's brand new HPX sensor; with OIS), an 8MP ultra-wide camera, a 2MP macro camera and a 16MP selfie camera.Unlike last year's Redmi Note 11 Pro+, microSD expansion is missing here, which may be a deterrent for those who are considering an upgrade.Then there's also the lesser but similar-looking Redmi Note 12 Pro, which swaps the 200MP main camera for a 50MP one (using Sony's IMX766 sensor), and it only uses 67W charging for the same 5,000mAh battery.It packs a Qualcomm Snapdragon 4 Gen 1 chipset, a slightly lesser-grade OLED display of the same size (mainly lower brightness and contrast, as well as the lack of HDR support), less powerful cameras (48MP main, 2MP depth sensor and 8MP front), weaker charging power (33W) and just a mono speaker."