Smartphones nowadays have become the most globally demanded electronic devices. Each year, almost thousands of new smartphone models are launched by different brands having diverse specifications and variable price range. Due to the availability of large smartphone quantity in the market, sometimes the buyers get confused about the most appropriate model to buy at low price with respect to descent hardware specifications. This research article states such a type of decision problem and solves it using multi-criteria decision-making techniques that enable the mobile users to select the best smartphone model. The main objective of the study is to choose the best smartphone model among 10 selected models available in the market with the help of fuzzy analytical hierarchy process (FAHP) and preference ranking organization method for enrichment of evaluations (PROMETHEE) where FAHP based on trapezoidal fuzzy numbers is used to evaluate the criteria weights and PROMETHEE is used to propose the preference ranking order of the alternatives. Seven important specifications (i.e., criteria), namely price, storage capacity, RAM, battery, screen size, camera and clock speed, are considered based on which the selection procedure is carried out. PROMETHEE I provides the partial alternatives ranking and shows the mode of preference of each model over other models, whereas PROMETHEE II delivers the complete ranking of the alternatives which recommends Realme 5i and Samsung J6 Plus as the best and worst model, respectively, among the group.

如今，智能手机已成为全球需求最旺盛的电子设备。每年，具有不同规格和可变价格范围的不同品牌推出近千种新的智能手机型号。由于市场上智能手机的数量很大，因此有时购买者会因在下降硬件规格方面最便宜的最合适型号而感到困惑。这篇研究文章阐述了这种决策问题，并使用多准则决策技术解决了该问题，使移动用户可以选择最佳的智能手机型号。该研究的主要目的是借助模糊层次分析法（FAHP）和偏好评估的优先排序组织方法（PROMETHEE）在市场上选择的10种模型中选择最佳的智能手机模型，其中FAHP基于梯形模糊数字用于评估标准权重，而PROMETHEE用于提出备选方案的偏好排名顺序。考虑了七个重要的规格（即标准），即价格，存储容量，RAM，电池，屏幕尺寸，相机和时钟速度，以此为基础进行选择程序。PROMETHEE I提供了部分替代方案排名，并显示了每个模型相对于其他模型的偏好模式，