<h1>Smartphone maker launches limited-time Big Billion Days exclusive deals with variant-specific discounts, terms, and stock limits</h1> A multinational smartphone manufacturer announced time-limited promotional pricing on multiple handset, tablet, laptop and audio models during a major e-commerce marketplace's 'Big Billion Days' sale starting Sept 22-23, offering reduced effective prices and variant-specific discounts exclusive to that platform. The offer materials emphasize product features and third-party validations and state that prices reflect bank/prepaid/exchange schemes, are subject to terms and conditions, availability and the marketplace's sole discretion, and may change or end when stocks or offers run out. Consumers should note exclusivity to the listed marketplace, variant-specific pricing, and that promotional terms and validations may affect warranty, return and advertising-claim scrutiny.