diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/ActivityTrackExporter.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/ActivityTrackExporter.java
index 9548cbec57..d4f54e3a57 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/ActivityTrackExporter.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/ActivityTrackExporter.java
@@ -1,4 +1,4 @@
-/*  Copyright (C) 2017-2024 Carsten Pfeiffer, Daniele Gobbetti, José Rebelo
+/*  Copyright (C) 2017-2026 Carsten Pfeiffer, Daniele Gobbetti, José Rebelo, Thomas Kuehne
 
     This file is part of Gadgetbridge.
 
@@ -16,13 +16,16 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.export;
 
+import androidx.annotation.Nullable;
+
 import java.io.File;
 import java.io.IOException;
 
+import nodomain.freeyourgadget.gadgetbridge.entities.BaseActivitySummary;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivityTrack;
 
 public interface ActivityTrackExporter {
-    void performExport(ActivityTrack track, File targetFile) throws IOException, GPXTrackEmptyException;
+    void performExport(ActivityTrack track, File targetFile, @Nullable BaseActivitySummary summary) throws IOException, GPXTrackEmptyException;
 
     class GPXTrackEmptyException extends Exception {
     }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/AutoGpxExporter.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/AutoGpxExporter.java
index 1df6529230..0cb9e51cac 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/AutoGpxExporter.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/AutoGpxExporter.java
@@ -98,7 +98,7 @@ public class AutoGpxExporter {
             try (OutputStream outputStream = context.getContentResolver().openOutputStream(targetFile.getUri());
                  BufferedOutputStream bos = new BufferedOutputStream(outputStream)) {
                 final GPXExporter exporter = new GPXExporter();
-                exporter.performExport(activityTrack, bos);
+                exporter.performExport(activityTrack, bos, summary);
             }
 
             LOG.info("Auto-exported GPX to: {}", targetFile.getUri());
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporter.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporter.java
index b5381c9718..61ede65667 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporter.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporter.java
@@ -41,7 +41,9 @@ import java.util.UUID;
 
 import nodomain.freeyourgadget.gadgetbridge.GBApplication;
 import nodomain.freeyourgadget.gadgetbridge.activities.HeartRateUtils;
+import nodomain.freeyourgadget.gadgetbridge.entities.BaseActivitySummary;
 import nodomain.freeyourgadget.gadgetbridge.entities.User;
+import nodomain.freeyourgadget.gadgetbridge.model.ActivityKind;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivityPoint;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivityTrack;
 import nodomain.freeyourgadget.gadgetbridge.model.GPSCoordinate;
@@ -80,14 +82,14 @@ public class GPXExporter implements ActivityTrackExporter {
     }
 
     @Override
-    public void performExport(ActivityTrack track, File targetFile) throws IOException, GPXTrackEmptyException {
+    public void performExport(ActivityTrack track, File targetFile, @Nullable BaseActivitySummary summary) throws IOException, GPXTrackEmptyException {
         try (FileOutputStream outputStream = new FileOutputStream(targetFile);
              BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream)) {
-            performExport(track, bufferedOutputStream);
+            performExport(track, bufferedOutputStream, summary);
         }
     }
 
-    public void performExport(ActivityTrack track, OutputStream outputStream) throws IOException, GPXTrackEmptyException {
+    public void performExport(ActivityTrack track, OutputStream outputStream, @Nullable BaseActivitySummary summary) throws IOException, GPXTrackEmptyException {
         String encoding = StandardCharsets.UTF_8.name();
         XmlSerializer ser = Xml.newSerializer();
 
@@ -111,7 +113,19 @@ public class GPXExporter implements ActivityTrackExporter {
                 + " " + OPENTRACKS_NAMESPACE_URI + " " + OPENTRACKS_XSD);
 
         exportMetadata(ser, track);
-        exportTrack(ser, track);
+
+        // don't localize trackType - it is used by importing applications
+        final String trackType;
+        if (summary != null) {
+            final ActivityKind activityKind = ActivityKind.fromCode(summary.getActivityKind());
+            trackType = switch (activityKind) {
+                case NOT_MEASURED, UNKNOWN, ACTIVITY -> null;
+                default -> activityKind.name();
+            };
+        } else {
+            trackType = null;
+        }
+        exportTrack(ser, track, trackType);
 
         ser.endTag(NS_GPX_URI, "gpx");
         ser.endDocument();
@@ -144,7 +158,7 @@ public class GPXExporter implements ActivityTrackExporter {
         return DateTimeUtils.formatIso8601UTC(date);
     }
 
-    private void exportTrack(XmlSerializer ser, ActivityTrack track) throws IOException, GPXTrackEmptyException {
+    private void exportTrack(XmlSerializer ser, ActivityTrack track, @Nullable String trackType) throws IOException, GPXTrackEmptyException {
         String uuid = ((this.uuid != null) ? this.uuid : UUID.randomUUID()).toString();
         ser.startTag(NS_GPX_URI, "trk");
 
@@ -154,6 +168,10 @@ public class GPXExporter implements ActivityTrackExporter {
             ser.startTag(NS_GPX_URI, "name").text(trackName).endTag(NS_GPX_URI, "name");
         }
 
+        if (trackType != null && !trackType.isBlank()) {
+            ser.startTag(NS_GPX_URI, "type").text(trackType).endTag(NS_GPX_URI, "type");
+        }
+
         ser.startTag(NS_GPX_URI, "extensions");
         ser.startTag(NS_GPX_URI, OPENTRACKS_PREFIX + ":trackid").text(uuid).endTag(NS_GPX_URI, OPENTRACKS_PREFIX + ":trackid");
         ser.endTag(NS_GPX_URI, "extensions");
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/opentracks/OpenTracksController.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/opentracks/OpenTracksController.java
index f50e32d305..7bc6f8795c 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/opentracks/OpenTracksController.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/opentracks/OpenTracksController.java
@@ -165,7 +165,7 @@ public class OpenTracksController extends Activity {
             gpxDir.mkdirs();
             final File gpxFile = new File(gpxDir, gpxName + ".gpx");
             final GPXExporter gpxExporter = new GPXExporter();
-            gpxExporter.performExport(activityTrack, gpxFile);
+            gpxExporter.performExport(activityTrack, gpxFile, null);
             LOG.info("Saved GPX received from OpenTracks to {}", gpxFile.getPath());
         } catch (IOException | ActivityTrackExporter.GPXTrackEmptyException e) {
             LOG.error("Error while writing generated GPX file", e);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/ActivitySummaryUtils.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/ActivitySummaryUtils.java
index 037926c3ee..7579c6d8d3 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/ActivitySummaryUtils.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/ActivitySummaryUtils.java
@@ -74,7 +74,7 @@ public final class ActivitySummaryUtils {
         final File gpxFile = new File(rawCacheDir, gpxFileName);
 
         final GPXExporter gpxExporter = new GPXExporter();
-        gpxExporter.performExport(activityTrack, gpxFile);
+        gpxExporter.performExport(activityTrack, gpxFile, summary);
 
         return gpxFile;
     }
diff --git a/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporterTest.java b/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporterTest.java
index 2cd74e85b6..ec65dcb86f 100644
--- a/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporterTest.java
+++ b/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporterTest.java
@@ -46,9 +46,11 @@ import javax.xml.validation.Schema;
 import javax.xml.validation.SchemaFactory;
 import javax.xml.validation.Validator;
 
+import nodomain.freeyourgadget.gadgetbridge.entities.BaseActivitySummary;
 import nodomain.freeyourgadget.gadgetbridge.entities.Device;
 import nodomain.freeyourgadget.gadgetbridge.entities.User;
 import nodomain.freeyourgadget.gadgetbridge.export.ActivityTrackExporter.GPXTrackEmptyException;
+import nodomain.freeyourgadget.gadgetbridge.model.ActivityKind;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivityPoint;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivityTrack;
 import nodomain.freeyourgadget.gadgetbridge.model.GPSCoordinate;
@@ -70,7 +72,7 @@ public class GPXExporterTest extends TestBase {
         final File tempFile = File.createTempFile("gpx-exporter-test-track", ".gpx");
         tempFile.deleteOnExit();
 
-        gpxExporter.performExport(track, tempFile);
+        gpxExporter.performExport(track, tempFile, null);
         validateGpxFile(tempFile);
     }
 
@@ -85,7 +87,7 @@ public class GPXExporterTest extends TestBase {
         final File tempFile = File.createTempFile("gpx-exporter-test-track", ".gpx");
         tempFile.deleteOnExit();
 
-        gpxExporter.performExport(track, tempFile);
+        gpxExporter.performExport(track, tempFile, null);
         validateGpxFile(tempFile);
     }
 
@@ -192,7 +194,9 @@ public class GPXExporterTest extends TestBase {
         final File tempFile = File.createTempFile("gpx-exporter-test-import-export", ".gpx");
         tempFile.deleteOnExit();
 
-        gpxExporter.performExport(track, tempFile);
+        BaseActivitySummary summary = new BaseActivitySummary();
+        summary.setActivityKind(ActivityKind.TRAIL_RUN.getCode());
+        gpxExporter.performExport(track, tempFile, summary);
 
         byte[] exported = Files.readAllBytes(tempFile.toPath());
         byte[] expected = readBinaryResource("/TestGpxExport.gpx");
diff --git a/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/HuamiActivityDetailsParserTest.java b/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/HuamiActivityDetailsParserTest.java
index 2abca82b90..fad3615800 100644
--- a/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/HuamiActivityDetailsParserTest.java
+++ b/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/HuamiActivityDetailsParserTest.java
@@ -94,7 +94,7 @@ public class HuamiActivityDetailsParserTest extends TestBase {
             exporter.setCreator(getClass().getName());
             File targetFile = File.createTempFile("gadgetbridge-track", ".gpx");
             System.out.println("Writing GPX file: " + targetFile);
-            exporter.performExport(track, targetFile);
+            exporter.performExport(track, targetFile, summary);
 
             assertTrue(targetFile.length() > 1024);
         }
diff --git a/app/src/test/resources/TestGpxExport.gpx b/app/src/test/resources/TestGpxExport.gpx
index b4e7fffdd6..5abb1af9e4 100644
--- a/app/src/test/resources/TestGpxExport.gpx
+++ b/app/src/test/resources/TestGpxExport.gpx
@@ -1 +1 @@
-<?xml version='1.0' encoding='UTF-8' standalone='yes' ?><gpx version="1.1" creator="Gadgetbridge Test" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 https://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v2 https://www8.garmin.com/xmlschemas/TrackPointExtensionv2.xsd http://opentracksapp.com/xmlschemas/v1 https://raw.githubusercontent.com/OpenTracksApp/OpenTracks/main/doc/opentracks-schema-1.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gpxtpx="http://www.garmin.com/xmlschemas/TrackPointExtension/v2" xmlns="http://www.topografix.com/GPX/1/1" xmlns:opentracks="http://opentracksapp.com/xmlschemas/v1"><metadata><name>Test Track</name><author><name>Test User</name></author><time>2025-10-17T21:00:00Z</time></metadata><trk><name>Test Track</name><extensions><opentracks:trackid>c5185301-d578-4e52-bb9f-c2a7afa044e2</opentracks:trackid></extensions><trkseg><trkpt lon="9.739380" lat="47.504883"><ele>-440.2</ele><time>2025-10-03T15:10:59Z</time><desc>a description</desc><hdop>1.4</hdop><vdop>3.2</vdop><pdop>1.5</pdop><extensions><gpxtpx:TrackPointExtension><gpxtpx:atemp>28.299999237060547</gpxtpx:atemp><gpxtpx:depth>26.299999237060547</gpxtpx:depth><gpxtpx:hr>123</gpxtpx:hr><gpxtpx:cad>22</gpxtpx:cad><gpxtpx:speed>23.299999237060547</gpxtpx:speed></gpxtpx:TrackPointExtension></extensions></trkpt><trkpt lon="9.556050" lat="47.608993"><ele>8849.2</ele><time>2025-10-03T15:21:07Z</time><desc>a comment</desc><extensions><gpxtpx:TrackPointExtension><gpxtpx:atemp>34.29999923706055</gpxtpx:atemp><gpxtpx:depth>10345</gpxtpx:depth></gpxtpx:TrackPointExtension></extensions></trkpt><trkpt lon="9.472961" lat="47.655945"><time>2025-10-03T15:30:00Z</time><extensions><gpxtpx:TrackPointExtension><gpxtpx:atemp>40.400001525878906</gpxtpx:atemp><gpxtpx:depth>41.400001525878906</gpxtpx:depth><gpxtpx:hr>42</gpxtpx:hr><gpxtpx:cad>43</gpxtpx:cad><gpxtpx:speed>44.400001525878906</gpxtpx:speed></gpxtpx:TrackPointExtension></extensions></trkpt><trkpt lon="-19.000000" lat="-43.000000" /></trkseg></trk></gpx>
\ No newline at end of file
+<?xml version='1.0' encoding='UTF-8' standalone='yes' ?><gpx version="1.1" creator="Gadgetbridge Test" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 https://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v2 https://www8.garmin.com/xmlschemas/TrackPointExtensionv2.xsd http://opentracksapp.com/xmlschemas/v1 https://raw.githubusercontent.com/OpenTracksApp/OpenTracks/main/doc/opentracks-schema-1.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gpxtpx="http://www.garmin.com/xmlschemas/TrackPointExtension/v2" xmlns="http://www.topografix.com/GPX/1/1" xmlns:opentracks="http://opentracksapp.com/xmlschemas/v1"><metadata><name>Test Track</name><author><name>Test User</name></author><time>2025-10-17T21:00:00Z</time></metadata><trk><name>Test Track</name><type>TRAIL_RUN</type><extensions><opentracks:trackid>c5185301-d578-4e52-bb9f-c2a7afa044e2</opentracks:trackid></extensions><trkseg><trkpt lon="9.739380" lat="47.504883"><ele>-440.2</ele><time>2025-10-03T15:10:59Z</time><desc>a description</desc><hdop>1.4</hdop><vdop>3.2</vdop><pdop>1.5</pdop><extensions><gpxtpx:TrackPointExtension><gpxtpx:atemp>28.299999237060547</gpxtpx:atemp><gpxtpx:depth>26.299999237060547</gpxtpx:depth><gpxtpx:hr>123</gpxtpx:hr><gpxtpx:cad>22</gpxtpx:cad><gpxtpx:speed>23.299999237060547</gpxtpx:speed></gpxtpx:TrackPointExtension></extensions></trkpt><trkpt lon="9.556050" lat="47.608993"><ele>8849.2</ele><time>2025-10-03T15:21:07Z</time><desc>a comment</desc><extensions><gpxtpx:TrackPointExtension><gpxtpx:atemp>34.29999923706055</gpxtpx:atemp><gpxtpx:depth>10345</gpxtpx:depth></gpxtpx:TrackPointExtension></extensions></trkpt><trkpt lon="9.472961" lat="47.655945"><time>2025-10-03T15:30:00Z</time><extensions><gpxtpx:TrackPointExtension><gpxtpx:atemp>40.400001525878906</gpxtpx:atemp><gpxtpx:depth>41.400001525878906</gpxtpx:depth><gpxtpx:hr>42</gpxtpx:hr><gpxtpx:cad>43</gpxtpx:cad><gpxtpx:speed>44.400001525878906</gpxtpx:speed></gpxtpx:TrackPointExtension></extensions></trkpt><trkpt lon="-19.000000" lat="-43.000000" /></trkseg></trk></gpx>
\ No newline at end of file