The units of OPPO's F1 Plus, also known as OPPO R9 in China, reached 7 million units sold - one in every 1.1 seconds - since its launch on March 17, according to the company. 

Vice President Alen Wu of OPPO proudly announced this statistic at a conference in Shenzhen on June 17. He emphasized the company's focus on the quality of their phones.

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OPPO F1 Plus has a 2500 mAh battery that lasts for 13 hours and 3 minutes, which is 1.8 times the battery-life of standard smartphones. This battery is boosted by Oppo's VOOC Flash Charge technology that charges it up to 56 percent in just half an hour.

Wu added that the company listens to their users, giving them the top-quality products. He also said that the company has become the fourth biggest smartphone manufacturer worldwide, based on the sales at the first quarter of this year and because of F1 Plus' success.

The executive said OPPO would continue to progress.

One of the contributing factors to the success of OPPO F1 Plus is the company's rigorous quality control tests. F1 Plus underwent up to 390 tests.

This device features a 5.5-inch full high-definition AMOLED display and a MediaTek Helio P10 with 4 GB of RAM and a massive 64 GB of expandable internal storage. It also has with a 13-megapixel PDAF primary shooter with a f/2.2 aperture and a 16-megapixel front-facing camera for selfies with f/2.0 aperture, making it one of the best smartphones for photography.

Tagsoppo f1 plus, oppo r9, Oppo, Alen Wu, F1 Plus, oppo news