It depends on your experience and risk tolerance. If you're comfortable with platforms like eBay or Craigslist, you'll likely get the highest price. However, these platforms require more effort and carry a higher risk of fraud, especially for inexperienced sellers.
For a smoother experience, consider using a trade-in site. These sites leverage their volume and industry expertise to offer a streamlined process, albeit with a slightly lower payout.
Older or non-functional Nothing Phones may have limited resale value. In such cases, consider recycling them responsibly to minimize environmental impact from electronic waste.