MediaTek will reportedly unveil the Dimensity 9500 flagship chipset on Sept. 22 in China. Reports have claimed that the Vivo X300 and X300 Pro will debut as the world’s first Dimensity 9500-powered smartphones. It appears that Vivo may launch its next X-series flagships in September, as alleged X300 series phones have received radio certification in China.
Vivo X300 series phones radio certified


The above images show that two new Vivo phones bearing the model numbers V2502A and V2502DA have received radio certification in China. Chinese tech bloggers like Digital Chat Station and Why Lab have claimed that the model number V2502A belongs to the standard Vivo X300. On the other hand, the V2502DA is said to be a variant of the phone, but with additional support for Beidou satellite short messaging service.
Two other phones, such as the V2509A and V2505A, have also received radio certification. While the identity of the V2509A is not known yet, DCS claims that the V2505A model number belongs to the iQOO 15.
With radio certification under the belt, the Vivo X300 series and iQOO 15 are expected to soon bag other remaining Chinese certifications like 3C and TENAA in the coming days. Likely, the X300 series may go official by the end of September in China, whereas the iQOO 15 powered by the forthcoming Snapdragon 8 Elite 2 chipset may break cover in October.
As of this writing, there is no clarity on whether there will be a Pro Mini model like last year’s X200 Pro Mini. Rumours surrounding the X300’s screen size suggest it could be reduced to 6.3 inches, like the X200 Pro Mini. The Vivo X300 series and iQOO 15 lineup are also expected to include the Vivo X300 Ultra and the iQOO 15 Ultra. These Ultra-branded models may launch in the first half of 2026.
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