diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1419bc0..0f5580f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # 更新日志
 ## 2024-07-15
+- `letv` 新增 Letv S3 Pro。
 - `vivo_cn` 新增 vivo Y37。
 ## 2024-07-14
 - `samsung_cn` 新增 Galaxy Z Fold6, Flip6, Watch7, Watch Ultra。
diff --git a/brands/letv.md b/brands/letv.md
index 15843f8..1d03483 100644
--- a/brands/letv.md
+++ b/brands/letv.md
@@ -108,4 +108,8 @@
 
 **Letv S1 Pro:**
 
-`Letv L8`: Letv S1 Pro 5G
\ No newline at end of file
+`Letv L8`: Letv S1 Pro 5G
+
+**Letv S3 Pro:**
+
+`Letv L9`: Letv S3 Pro
\ No newline at end of file