scoring_breakdown:[{"source":"word_of_mouth","score":84.1,"weight":0.35,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"全网评论量超百万,用户口碑以\"性价比之王\"著称。优点:价格亲民、连接米家App方便、数据记录清晰、外观简洁。缺点:测量精度受脚部湿润度影响较大,部分用户反映与健身房设备数据有偏差;单频技术无法分段测量四肢;玻璃面板较薄,大体重用户需小心。专业评测认为,在百元价位段,小米体脂秤2的稳定性和App体验无出其右,适合作为入门或备用设备。小红书用户常推荐给租房族和学生党。","source_count":3}},{"source":"objective","score":90,"weight":0.2,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.5,"review_count":1200000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":90,"weight":0.35,"confidence":1,"details":{"rating_avg":4.5,"review_count":1200000,"source":"product_reviews_aggregate"}},{"source":"search_visual","score":73.14285714285714,"weight":0,"confidence":0.87,"details":{"result_count":7,"judgment_score":85,"authority_score":89.3,"top_sources":["smzdm.com","bilibili.com","baike.baidu.com","zhihu.com","item.jd.com"],"judgment_summary":"小米体脂秤2 XMTZC04HM 是一款高性价比的家用体脂秤,测量数据全面且趋势准确,适合普通用户日常健康管理,但专业精度有限。"}}]