https://wccftech.com/iphone-12-vs-galaxy-s21-which-phone-holds-its-value-more/

Over time, the iPhone 12 maintains a higher value compared to the Galaxy S21 series, according to the latest data. In short, if you plan on selling any Apple device after a period of 12 months and want the most from it, it is recommended that you purchase an iPhone 12.

New data from SellCell shows that Apple’s iPhone 12 range has lost between 18.1-33.7 percent of its original value since its inception back in 2020. However, the Galaxy S21 family depreciated the most, losing between 44.8-57.1 percent since Samsung launch the flagship series in January of this year. Surprisingly, the Galaxy S21, which was unveiled at $799, suffered the most, with the 256GB storage variant depreciating by a whopping 57.1 percent while being put on sale for just three months.