Xiaomi has quietly released the Redmi 13x in Vietnam with a refreshed design.The Redmi 13x features a 6.79-inch Full HD+ display with a 90Hz refresh rate and a redesigned body.Powered by MediaTek's Helio G91-Ultra chipset, it comes with 6GB or 8GB of RAM and 128GB of internal storage.The phone is currently available in Vietnam and is expected to have a wider release soon.