Despite a fourfold increase in sales by 2025, the market share of folding phones is likely to remain negligible, below 2%, in the coming years, according to IDC forecasts. In 2021, some 1.348 billion smartphones were sold worldwide, including 7.1 million folding models. This represents a paltry 0.5% of the market. By 2025, IDC predicts that this share could rise to 1.8%, with annual sales rising fourfold to 27.6 million unit shipments, out of a total 1.518 billion smartphone shipments worldwide. This still represents an average annual sales growth of 70%, albeit for a market that is still not …