Oneplus is a Chinese based smartphone manufacturing firm that started back in 2013 by two friends (Pete Lau and Carl Pei). Oneplus while starting out focused majorly on designing quality high-end phones at a price you won't have to break the bank to pay for. Oneplus since it's establishment have manufactured alot of tech products including seven(7) successive smartphone. They currently have over 1.4 Billion dollar in revenue with heavy presence in 43 countries and region including Egypt. They are yet to create significant presence in Nigeria but are gradually gaining popularity. See the price list of all oneplus phones in Nigeria https://www.techmobile.com.ng/oneplus-phones-and-prices