For example, the Oppo F21 Pro launched a couple of weeks ago with a “Sunset Orange” leatherette back. The Oppo QE Reliability LabThe story starts with several thousand different textures that the Oppo designers examined. An Oppo F21 Pro in the middle of a drop testHeight isn’t the only concern, small drops on an abrasive surface can scuff up a shiny new phone. So, the Oppo F21 phones are splashed with salt water (5% salinity) for 2 hours, while being kept in a hot, damp environment (50°C, 95% RH). Oppo doesn't go easy on its phonesSome of these tests are performed on all Oppo phones, others are specific to the F21 series – the leatherette tests, for example.

Source: The Nation April 29, 2022 15:53 UTC