Unverified80% confidenceFactTime unknown
多数品牌云存储需付费订阅，事件录像方案云存通常保留7-30天，超过需续费，本地存储的门铃可用SD卡长期保存无月费
1
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
-
First Seen
Sources
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Unverified订阅式云存储需长期成本考量，多数品牌免费云存储仅提供7天循环或事件片段，连续录像需月付订阅；追求零月费应选本地存储+局域网回看方案90% similarUnverified云视频存储多为付费订阅（免费仅存3-7天循环覆盖），长期回放需持续续费；介意付费可选支持本地存储（TF卡/网关）的机型，一次性成本更低83% similarUnverified云存储服务大多需按月/年订阅付费，购买前需核算长期订阅成本，支持micro SD本地卡存储的机型可零月费但断电断网会丢失回放82% similarUnverified云存储订阅制机型免费期结束后需持续付费才能查看历史录像，介意长期成本的用户应选支持本地SD卡/NAS存储的型号80% similarUnverified依赖萤石云平台的云存储功能需持续付费订阅，免费空间有限，长期使用需将月租费用纳入实际持有成本79% similar
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