{"appears_in":[{"position":1,"ranking_slug":"best-smart-door-locks-2026","ranking_title":"2026 年智能门锁怎么选：新国标 3 月 1 日换代，锁芯锁体、生物识别方案、续航三项定生死，10 款横向对比","score":9.2,"url":"https://buyranker.com/ranking/best-smart-door-locks-2026"}],"brand":"小米 Xiaomi","buy_url":null,"canonical_url":"https://buyranker.com/product/xiaomi-smart-door-lock-4-pro","category":{"name":"智能门锁","slug":"smart-lock"},"cons":["锂电约 4 个月，续航偏短","生态绑定米家"],"description":null,"id":"ff7e9e393d6cad4925d28e48c46d5a3f","image_url":null,"name":"小米智能门锁 4 Pro","official_url":"https://www.mi.com/","price":{"currency":"CNY","max":2499,"min":2100},"pros":["掌静脉 + 3D 人脸双生物识别，老人小孩都有方案","全自动 + 降噪锁体，关门即上锁","直插式 C 级锁芯","毫米波雷达猫眼，误报少","2499 元配置密度高"],"release_year":2025,"slug":"xiaomi-smart-door-lock-4-pro","specs":{"猫眼":"200 万像素、152° 超广角、24GHz 毫米波雷达、动态夜视","生态":"米家","续航":"5000mAh 锂电约 4 个月；4 节 5 号干电池约 6 个月","锁体":"自研降噪全自动锁体","锁芯":"直插式 C 级","3D 人脸":"拒真率 < 1%，误识率 < 0.0001%，识别约 1 秒","掌静脉":"拒真率 < 1%，识别 < 1 秒","应急供电":"支持充电宝","开锁方式":"12 种（含 AI 掌静脉、AI 3D 人脸、AI 指纹、NFC、蓝牙、远程、机械钥匙等）"},"summary":"12 种开锁方式，AI 掌静脉与 AI 3D 人脸识别均标注拒真率低于 1%，自研降噪全自动锁体配直插式 C 级锁芯，200 万像素 152° 猫眼加 24GHz 毫米波雷达，锂电约 4 个月/干电池约 6 个月，2499 元。"}