<h1>Product certification: OPPO's F31 5G Series claims multiple IP and TU V certifications, plus multi year performance guarantees and consumer protections.</h1> The release presents the OPPO F31 5G Series' compliance and consumer commitments: triple IP ratings (IP66, IP68, IP69), TU V Rheinland connectivity certification, Jio network testing, MIL STD reference, a 72 month fluency claim, two years of OS updates and three years of security updates, a 7,000mAh battery with stated cycle retention, and customer offers including 180 day accidental and liquid damage protection, finance options, and exchange bonuses.