scoring_breakdown:[{"source":"word_of_mouth","score":87.1,"weight":0.3,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"综合京东、天猫及养老论坛1.2万条评价,用户认可其专业性与舒适度。优点:心率数据与医院监护仪偏差<1bpm,被多家养老机构采购;臂带设计不影响日常活动,适合夜间佩戴;预警功能可靠,家属可通过App远程接收报警。缺点:价格偏高(599元),功能单一(无血氧、无运动);App界面设计老旧,交互体验不如消费级产品;蓝牙连接偶尔断连。专业评测\"医疗器械网\"指出,B-100是少数获得FDA认证的家用心率臂带,适合对数据准确性要求高的用户。小红书用户\"护理师王姐\"评价:\"给家里老人买的,晚上心率低了会报警,已经提醒过两次房颤发作,比手环靠谱多了。\"","source_count":4}},{"source":"objective","score":90,"weight":0.2,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.5,"review_count":12000,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":90,"weight":0.2,"confidence":1,"details":{"rating_avg":4.5,"review_count":12000,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.3,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["丁香医生:对于老年人或心脏病患者,博朗B-100这类医疗级臂带比智能手环更适合长期心率监测。","老爸评测:我们实测了10款心率设备,博朗B-100的准确度排名第一,和医院心电图一致。"]}}]