diff --git a/app/src/main/java/com/ismart/ib86/feature/serial/SerialPort/SerialPortHelper.java b/app/src/main/java/com/ismart/ib86/feature/serial/SerialPort/SerialPortHelper.java
index 6733f77..bfefabb 100644
--- a/app/src/main/java/com/ismart/ib86/feature/serial/SerialPort/SerialPortHelper.java
+++ b/app/src/main/java/com/ismart/ib86/feature/serial/SerialPort/SerialPortHelper.java
@@ -41,6 +41,7 @@ public class SerialPortHelper {
     private GH3220MeasureCallback gh3220MeasureCallback;
     private AlgoResultCallback algoResultCallback;
     private boolean isSimulationMode = false;
+    private Boolean lastWearStatus = null;
     private final ByteBuffer frameBuffer = ByteBuffer.allocate(1024);
 
     public interface SendCallback {
@@ -322,6 +323,7 @@ public class SerialPortHelper {
         sendData(data, null);
     }
 
+
     public boolean open() {
         try {
             LogManager.d(TAG, "Opening serial port: " + mPortName + " with baud rate: " + mBaudRate);
@@ -648,7 +650,10 @@ public class SerialPortHelper {
             case ASR5515Protocol.Commands.CMD_WEAR_DETECTION_RESP:
                 ASR5515Protocol.WearDetectionResponse wearDetectionResponse = ASR5515Protocol.parseWearDetectionResponse(frame);
                 if (wearDetectionResponse != null && wearDetectionCallback != null) {
-                    wearDetectionCallback.onWearDetectionResponse(wearDetectionResponse);
+                    if (lastWearStatus == null || lastWearStatus != wearDetectionResponse.isWearing) {
+                        wearDetectionCallback.onWearDetectionResponse(wearDetectionResponse);
+                        lastWearStatus = wearDetectionResponse.isWearing;
+                    }
                 }
                 break;