diff --git a/android/app/build.gradle b/android/app/build.gradle
index aa3243246..8098b57c3 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -121,13 +121,13 @@ android {
         applicationIdSuffix ".dev"
         versionNameSuffix "-dev"
         // 10203010 <- 10203(v1.2.3 version name)+01(build number)+0(Android app)
-        versionCode 80100020
-        versionName "8.1.0"
+        versionCode 80102000
+        versionName "8.1.2"
       }
       prod {
         dimension "environment"
-        versionCode 80100020
-        versionName "8.1.0"
+        versionCode 80102000
+        versionName "8.1.2"
       }
     }
 }// Apply static values from `gradle.properties` to the `android.packagingOptions`
diff --git a/android/wearable/build.gradle.kts b/android/wearable/build.gradle.kts
index c8c98025c..b14b901f5 100644
--- a/android/wearable/build.gradle.kts
+++ b/android/wearable/build.gradle.kts
@@ -34,13 +34,13 @@ android {
       applicationIdSuffix = ".dev"
       versionNameSuffix = "-dev"
       // 10203011 <- 10203(v1.2.3 version name)+01(build number)+1(Wearable app)
-      versionCode = 80100021
-      versionName = "8.1.0"
+      versionCode = 80102001
+      versionName = "8.1.2"
     }
     create("prod") {
       dimension = "environment"
-      versionCode = 80100021
-      versionName = "8.1.0"
+      versionCode = 80102001
+      versionName = "8.1.2"
     }
   }
 
diff --git a/ios/TrainLCD.xcodeproj/project.pbxproj b/ios/TrainLCD.xcodeproj/project.pbxproj
index 3ad9c0948..5952aa5df 100644
--- a/ios/TrainLCD.xcodeproj/project.pbxproj
+++ b/ios/TrainLCD.xcodeproj/project.pbxproj
@@ -1457,7 +1457,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				OTHER_LDFLAGS = (
 					"$(inherited)",
 					"-ObjC",
@@ -1495,7 +1495,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				OTHER_LDFLAGS = (
 					"$(inherited)",
 					"-ObjC",
@@ -1586,7 +1586,7 @@
 					"\"$(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)\"",
 					"\"$(inherited)\"",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CFLAGS = "$(inherited)";
@@ -1672,7 +1672,7 @@
 					"\"$(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)\"",
 					"\"$(inherited)\"",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				OTHER_CFLAGS = "$(inherited)";
 				OTHER_CPLUSPLUSFLAGS = "$(inherited)";
@@ -1708,7 +1708,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				OTHER_LDFLAGS = (
 					"$(inherited)",
 					"-ObjC",
@@ -1746,7 +1746,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				OTHER_LDFLAGS = (
 					"$(inherited)",
 					"-ObjC",
@@ -1784,7 +1784,7 @@
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				IBSC_MODULE = WatchApp_Extension;
 				INFOPLIST_FILE = WatchApp/Schemes/Dev/Info.plist;
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_DEBUG";
@@ -1823,7 +1823,7 @@
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				IBSC_MODULE = WatchApp_Extension;
 				INFOPLIST_FILE = WatchApp/Schemes/Dev/Info.plist;
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_RELEASE -D EXPO_CONFIGURATION_DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tinykitten.trainlcd.dev.watchkitapp;
@@ -1865,7 +1865,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_DEBUG";
@@ -1909,7 +1909,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_RELEASE -D EXPO_CONFIGURATION_DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tinykitten.trainlcd.dev.watchkitapp.watchkitextension;
@@ -1953,7 +1953,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_DEBUG";
@@ -2001,7 +2001,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_RELEASE -D EXPO_CONFIGURATION_DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tinykitten.trainlcd.dev.ridesessionactivity;
@@ -2047,7 +2047,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_DEBUG";
@@ -2095,7 +2095,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_RELEASE -D EXPO_CONFIGURATION_DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tinykitten.trainlcd.ridesessionactivity;
@@ -2139,7 +2139,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_DEBUG";
@@ -2183,7 +2183,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_RELEASE -D EXPO_CONFIGURATION_DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tinykitten.trainlcd.watchkitapp.watchkitextension;
@@ -2221,7 +2221,7 @@
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				IBSC_MODULE = WatchApp_Extension;
 				INFOPLIST_FILE = WatchApp/Schemes/Prod/Info.plist;
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_DEBUG";
@@ -2261,7 +2261,7 @@
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				IBSC_MODULE = WatchApp_Extension;
 				INFOPLIST_FILE = WatchApp/Schemes/Prod/Info.plist;
-				MARKETING_VERSION = 8.1.1;
+				MARKETING_VERSION = 8.1.2;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited) -D EXPO_CONFIGURATION_RELEASE -D EXPO_CONFIGURATION_DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tinykitten.trainlcd.watchkitapp;
diff --git a/src/hooks/useStartBackgroundLocationUpdates.ts b/src/hooks/useStartBackgroundLocationUpdates.ts
index 7d2ad209e..6738f7364 100644
--- a/src/hooks/useStartBackgroundLocationUpdates.ts
+++ b/src/hooks/useStartBackgroundLocationUpdates.ts
@@ -17,10 +17,11 @@ export const useStartBackgroundLocationUpdates = () => {
       ) {
         Location.startLocationUpdatesAsync(LOCATION_TASK_NAME, {
           // NOTE: BestForNavigationにしたら暴走時のCPU使用率が50%ほど低下した
-          accuracy: Location.Accuracy.Highest,
+          accuracy: Location.Accuracy.BestForNavigation,
           // NOTE: マップマッチが勝手に行われると電車での経路と大きく異なることがあるはずなので
           // OtherNavigationは必須
           activityType: Location.ActivityType.OtherNavigation,
+          distanceInterval: 100,
           foregroundService: {
             notificationTitle: translate('bgAlertTitle'),
             notificationBody: translate('bgAlertContent'),