Yes, you can sell your Huawei D15 Ryzen 7 5700g laptop if you no longer need it or want to upgrade to a different model. Make sure to include relevant details such as the laptop's specifications, condition, any warranty that may still be valid, and any additional accessories or software that will be included in the sale. Providing clear and accurate information will help potential buyers make an informed decision. Additionally, consider setting a reasonable price based on the laptop's current market value and its condition.