Unverified80% confidenceDecision RuleTime unknown
防摔等级看外壳材质与跌落测试高度，标注1.5米以上抗跌落+食品级硅胶包边的适合3岁以下经常摔机的场景；IPX等级需≥IPX4才具备防泼溅意义
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80%
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Long-term
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Unverified耐用防摔看外壳材质与结构：食品级硅胶包边+一体成型机身能承受1米跌落，缝隙拼接款易在跌落后进灰、喇叭移位。3岁以下必选IPX4以上防水（防口水、湿手）83% similarUnverified选购防撞角优先看邵氏硬度：软硅胶（邵氏A 20-40度）缓冲性最好，适合会跑跳撞击的1-3岁幼儿；EVA泡棉密度过低（<50kg/m³）虽软但回弹差、易变形老化，长期用防护力下降78% similarUnverified防摔硅胶外壳越厚越耐摔，但会增加重量和体积，且遮挡按键手感；低龄段(1-2岁)优先防摔，学龄段可放宽74% similarUnverified运动场景选带硅胶防滑条+高氨纶含量（≥18%）的款式，纯锦纶低弹款跑动时易下滑堆积，反复提拉影响体验74% similarUnverified机身选硅胶包边+防摔外壳，跌落防护≥1.5米；避免纯塑料无包边机型，儿童使用跌落频次高极易碎屏73% similar
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