Realme is a smartphone brand that was officially established on May 4, 2018, by Sky Li, who was the former vice president of Oppo Electronics. Realme is a subsidiary of BBK Electronics, which is also the parent company of popular smartphone brands like Oppo, Vivo, and OnePlus. Realme primarily focuses on the production of budget and mid-range smartphones with competitive specifications and features.

Since its inception, Realme has experienced significant growth and has quickly gained popularity, particularly in emerging markets like India, Southeast Asia, and Europe. The company's mission is to provide affordable smartphones with high-quality performance and trendy designs, catering to the needs and preferences of young consumers.

Realme devices are known for offering excellent value for money, often featuring powerful processors, ample RAM and storage, high-resolution displays, and large-capacity batteries. The company emphasizes delivering a seamless user experience by optimizing its software, which is based on Android with a custom skin called "Realme UI."

Apart from smartphones, Realme has also expanded its product portfolio to include accessories like smartwatches, fitness bands, earphones, and power banks. They have also ventured into the smart home segment by introducing products such as smart TVs and smart speakers.

Realme has adopted an aggressive online sales strategy, primarily relying on e-commerce platforms and flash sales to reach a wide customer base. However, the company has also established offline retail partnerships and exclusive stores in various countries to enhance its accessibility.

Realme has been actively expanding its global presence and has successfully entered multiple markets, including China, India, Southeast Asia, Europe, and parts of the Middle East. As of my knowledge cutoff in September 2021, Realme had gained a significant market share and was considered one of the top smartphone brands in India.

Please note that the information provided here is based on the knowledge available up until September 2021, and there may have been further developments or changes in Realme's product lineup and market presence since then.