diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 99c898f..9959b40 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -4,8 +4,8 @@ plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.compose)
-    id("com.google.devtools.ksp") version "2.3.0"
-    id("com.google.protobuf")
+    alias(libs.plugins.vksp)
+    alias(libs.plugins.vprotobuf)
 }
 
 android {
@@ -17,7 +17,7 @@ android {
         minSdk = 28
         targetSdk = 36
         versionCode = 1
-        versionName = "Alpha 0.6.3"
+        versionName = "Alpha 0.6.4"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -90,6 +90,11 @@ dependencies {
     implementation(libs.androidx.ui.tooling.preview)
     implementation(libs.androidx.material3)
     implementation(libs.androidx.compose.material.icons.extended)
+    implementation(libs.play.services.wearable)
+    implementation(libs.kotlinx.coroutines.play.services)
+    implementation(libs.timber)
+    implementation(libs.tinylog.api)
+    implementation(libs.tinylog.impl)
 
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
@@ -104,18 +109,10 @@ dependencies {
     androidTestImplementation(platform(libs.androidx.compose.bom))
     androidTestImplementation(libs.androidx.ui.test.junit4)
 
-    debugImplementation(libs.androidx.ui.tooling)
-    debugImplementation(libs.androidx.ui.test.manifest)
-    implementation("androidx.navigation:navigation-compose:2.7.0")
-    implementation("com.google.android.material:material:1.2.0")
-    implementation(libs.protobuf.javalite)
-    implementation("androidx.compose.material:material")
-    implementation("androidx.datastore:datastore-preferences:1.1.7")
-
-    implementation("com.squareup.retrofit2:retrofit:2.9.0")
-    implementation("com.squareup.retrofit2:converter-gson:2.9.0")
-    implementation("com.google.code.gson:gson:2.10.1")
+    implementation(libs.retrofit)
+    implementation(libs.retrofit.converter.gson)
+    implementation(libs.gson)
 
     // HTTP request logging
-    implementation("com.squareup.okhttp3:logging-interceptor:4.11.0")
-}
\ No newline at end of file
+    implementation(libs.okhttp.logging.interceptor)
+}
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/daos/CardDao.kt b/app/src/main/java/com/github/nacabaro/vbhelper/daos/CardDao.kt
index b2d61e0..3fbca2a 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/daos/CardDao.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/daos/CardDao.kt
@@ -13,6 +13,9 @@ interface CardDao {
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insertNewCard(card: Card): Long
 
+    @Query("SELECT * FROM Card")
+    fun getAllCards(): List<Card>
+
     @Query("SELECT * FROM Card WHERE cardId = :id")
     fun getCardByCardId(id: Int): List<Card>
 
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/daos/UserCharacterDao.kt b/app/src/main/java/com/github/nacabaro/vbhelper/daos/UserCharacterDao.kt
index 284bca9..680c162 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/daos/UserCharacterDao.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/daos/UserCharacterDao.kt
@@ -131,6 +131,9 @@ interface UserCharacterDao {
     @Query("SELECT * FROM VBCharacterData WHERE id = :id")
     fun getVbData(id: Long): Flow<VBCharacterData>
 
+    @Query("SELECT * FROM VBCharacterData WHERE id = :id")
+    suspend fun getVbDataOrNull(id: Long): VBCharacterData?
+
     @Query("SELECT * FROM SpecialMissions WHERE characterId = :id")
     fun getSpecialMissions(id: Long): Flow<List<SpecialMissions>>
 
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/database/AppDatabase.kt b/app/src/main/java/com/github/nacabaro/vbhelper/database/AppDatabase.kt
index 7aa784c..d66595a 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/database/AppDatabase.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/database/AppDatabase.kt
@@ -13,6 +13,8 @@ import com.github.nacabaro.vbhelper.daos.ItemDao
 import com.github.nacabaro.vbhelper.daos.SpecialMissionDao
 import com.github.nacabaro.vbhelper.daos.SpriteDao
 import com.github.nacabaro.vbhelper.daos.UserCharacterDao
+import com.github.nacabaro.vbhelper.companion.validation.ValidatedCardDao
+import com.github.nacabaro.vbhelper.companion.validation.ValidatedCardEntity
 import com.github.nacabaro.vbhelper.domain.card.Background
 import com.github.nacabaro.vbhelper.domain.card.CardCharacter
 import com.github.nacabaro.vbhelper.domain.card.Card
@@ -50,7 +52,8 @@ import com.github.nacabaro.vbhelper.domain.items.Items
         Items::class,
         Adventure::class,
         Background::class,
-        PossibleTransformations::class
+        PossibleTransformations::class,
+        ValidatedCardEntity::class
     ]
 )
 abstract class AppDatabase : RoomDatabase() {
@@ -65,4 +68,5 @@ abstract class AppDatabase : RoomDatabase() {
     abstract fun specialMissionDao(): SpecialMissionDao
     abstract fun cardAdventureDao(): CardAdventureDao
     abstract fun cardFusionsDao(): CardFusionsDao
+    abstract fun validatedCardDao(): ValidatedCardDao
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/di/AppContainer.kt b/app/src/main/java/com/github/nacabaro/vbhelper/di/AppContainer.kt
index 2d82b95..d6f7088 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/di/AppContainer.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/di/AppContainer.kt
@@ -3,9 +3,13 @@ package com.github.nacabaro.vbhelper.di
 import com.github.nacabaro.vbhelper.database.AppDatabase
 import com.github.nacabaro.vbhelper.source.CurrencyRepository
 import com.github.nacabaro.vbhelper.source.DataStoreSecretsRepository
+import com.github.nacabaro.vbhelper.companion.validation.ValidatedCardManager
+import com.github.nacabaro.vbhelper.companion.logs.CompanionLogService
 
 interface AppContainer {
     val db: AppDatabase
     val dataStoreSecretsRepository: DataStoreSecretsRepository
     val currencyRepository: CurrencyRepository
+    val validatedCardManager: ValidatedCardManager
+    val companionLogService: CompanionLogService
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/di/DefaultAppContainer.kt b/app/src/main/java/com/github/nacabaro/vbhelper/di/DefaultAppContainer.kt
index 70305b2..c15848e 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/di/DefaultAppContainer.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/di/DefaultAppContainer.kt
@@ -8,6 +8,8 @@ import com.github.nacabaro.vbhelper.database.AppDatabase
 import com.github.nacabaro.vbhelper.di.AppContainer
 import com.github.nacabaro.vbhelper.source.CurrencyRepository
 import com.github.nacabaro.vbhelper.source.DataStoreSecretsRepository
+import com.github.nacabaro.vbhelper.companion.validation.ValidatedCardManager
+import com.github.nacabaro.vbhelper.companion.logs.CompanionLogService
 import com.github.nacabaro.vbhelper.source.SecretsSerializer
 import com.github.nacabaro.vbhelper.source.proto.Secrets
 
@@ -37,5 +39,11 @@ class DefaultAppContainer(private val context: Context) : AppContainer {
     override val dataStoreSecretsRepository = DataStoreSecretsRepository(context.secretsStore)
 
     override val currencyRepository = CurrencyRepository(context.currencyStore)
+
+    override val validatedCardManager by lazy {
+        ValidatedCardManager(db.validatedCardDao())
+    }
+
+    override val companionLogService = CompanionLogService()
 }
 
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/di/VBHelper.kt b/app/src/main/java/com/github/nacabaro/vbhelper/di/VBHelper.kt
index 0c66c99..8e7b59b 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/di/VBHelper.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/di/VBHelper.kt
@@ -2,10 +2,18 @@ package com.github.nacabaro.vbhelper.di
 
 import DefaultAppContainer
 import android.app.Application
+import com.github.nacabaro.vbhelper.companion.validation.ValidatedCardManager
+import com.github.nacabaro.vbhelper.companion.logs.CompanionLogService
 
 class VBHelper : Application() {
     lateinit var container: DefaultAppContainer
 
+    val validatedCardManager: ValidatedCardManager
+        get() = container.validatedCardManager
+
+    val companionLogService: CompanionLogService
+        get() = container.companionLogService
+
     override fun onCreate() {
         super.onCreate()
         container = DefaultAppContainer(applicationContext)
diff --git a/app/src/main/java/com/github/nacabaro/vbhelper/source/DeviceTypeConverter.kt b/app/src/main/java/com/github/nacabaro/vbhelper/source/DeviceTypeConverter.kt
index 6a97062..8783175 100644
--- a/app/src/main/java/com/github/nacabaro/vbhelper/source/DeviceTypeConverter.kt
+++ b/app/src/main/java/com/github/nacabaro/vbhelper/source/DeviceTypeConverter.kt
@@ -5,6 +5,7 @@ import com.github.nacabaro.vbhelper.domain.device_data.VBCharacterData
 import com.github.nacabaro.vbhelper.utils.DeviceType
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
+import timber.log.Timber
 
 /**
  * Utility for converting character device types.
@@ -31,7 +32,7 @@ class DeviceTypeConverter(private val database: AppDatabase) {
             true
         } catch (e: Exception) {
             // Log but don't crash - character can still be sent as-is
-            android.util.Log.e("DeviceTypeConverter", "Failed to convert character $characterId to VB type", e)
+            Timber.e(e, "Failed to convert character $characterId to VB type")
             false
         }
     }
@@ -42,7 +43,7 @@ class DeviceTypeConverter(private val database: AppDatabase) {
             val vbCharacterData = VBCharacterData(
                 id = characterId,
                 generation = 0,
-                totalTrophies = 0
+                totalTrophies = 0,
             )
             database.userCharacterDao().insertVBCharacterData(vbCharacterData)
         }
diff --git a/app/src/main/proto/com/github/cfogrady/vitalwear/protos/Character.proto b/app/src/main/proto/com/github/cfogrady/vitalwear/protos/Character.proto
index 263b4d8..a37c25f 100644
--- a/app/src/main/proto/com/github/cfogrady/vitalwear/protos/Character.proto
+++ b/app/src/main/proto/com/github/cfogrady/vitalwear/protos/Character.proto
@@ -23,6 +23,13 @@ message Character {
     int32 total_wins = 13;
     int32 current_phase_wins = 14;
     int32 mood = 15;
+
+    enum TransferDeviceType {
+      TRANSFER_DEVICE_TYPE_UNSPECIFIED = 0;
+      TRANSFER_DEVICE_TYPE_VB = 1;
+      TRANSFER_DEVICE_TYPE_BE = 2;
+    }
+    TransferDeviceType transfer_device_type = 16;
   }
   CharacterStats character_stats = 3;
 
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 67db0c1..bfdd6c4 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -48,9 +48,6 @@
     <string name="card_adventure_missions_title">アドベンチャーミッション</string>
     <string name="card_entry_characters_obtained">%1$d / %2$d のキャラクターを取得しました。</string>
     <string name="card_entry_edit">編集</string>
-    <string name="card_entry_edit">編集</string>
-    <string name="card_entry_edit">編集</string>
-    <string name="card_entry_edit">編集</string>
     <string name="card_entry_delete">削除</string>
     <string name="home_vbdim_current_phase_win">フェーズ勝率 %</string>
     <string name="home_vbdim_special_missions">スペシャルミッション</string>
@@ -92,7 +89,6 @@
     <string name="battles_online_title">オンラインバトル</string>
     <string name="obtained_item_you_also_got_credits">%1$d クレジットを獲得しました。</string>
     <string name="obtained_item_dismiss">閉じる</string>
-    <string name="obtained_item_dismiss">閉じる</string>
     <string name="nav_dex">図鑑</string>
     <string name="action_place_near_reader">バイタルブレス本体を近くに置いて下さい。</string>
     <string name="action_cancel">キャンセル</string>
@@ -100,7 +96,6 @@
     <string name="dex_chara_icon_description">キャラクターアイコン</string>
     <string name="dex_chara_name_icon_description">名前</string>
     <string name="credits_section_reverse_engineering">リバースエンジニアリング</string>
-    <string name="credits_section_reverse_engineering">リバースエンジニアリング</string>
     <string name="credits_section_app_development">アプリケーション開発</string>
     <string name="credits_cyanic_description">"         ファームウェアの解析を行い、開発をサポートしてくれました。"</string>
     <string name="credits_cfogrady_description">"         vb-lib-nfc開発およびアプリの開発に協力して頂きました。"</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index ac8a85d..8db8873 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -219,4 +219,17 @@
     <string name="home_special_mission_delete_dismiss">Dismiss</string>
     <string name="home_special_mission_delete_remove">Remove</string>
 
+    <string name="settings_companion_import_card_image_title">Import Card Image</string>
+    <string name="companion_validation_connect_vb">Connect Vital Bracelet</string>
+    <string name="companion_card_import_success">Card imported successfully!</string>
+    <string name="companion_firmware_no_watch">No watch found!</string>
+    <string name="companion_validation_insert_card">Insert card into Vital Bracelet</string>
+    <string name="companion_validation_success">Validation successful!</string>
+    <string name="companion_loading_select_firmware">Select firmware file</string>
+    <string name="companion_firmware_sent_success">Firmware sent successfully!</string>
+    <string name="companion_logs_receive_failed">Failed to receive logs</string>
+    <string name="companion_logs_failed_request">Failed to request logs</string>
+    <string name="companion_logs_warning">Warning: Log transfer might take a while</string>
+    <string name="settings_companion_send_watch_logs_title">Send Watch Logs</string>
+    <string name="companion_transfer_disabled_message">Transfer is currently disabled</string>
 </resources>
diff --git a/build.gradle.kts b/build.gradle.kts
index 1662ff3..28f9d73 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,10 +3,6 @@ plugins {
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.kotlin.android) apply false
     alias(libs.plugins.kotlin.compose) apply false
+    alias(libs.plugins.vksp) apply false
+    alias(libs.plugins.vprotobuf) apply false
 }
-
-buildscript {
-    dependencies {
-        classpath(libs.protobuf.gradle.plugin)
-    }
-}
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 20e2a01..4540b75 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -20,4 +20,14 @@ kotlin.code.style=official
 # Enables namespacing of each library's R class so that its R class includes only the
 # resources declared in the library itself and none from the library's dependencies,
 # thereby reducing the size of the R class for that library
-android.nonTransitiveRClass=true
\ No newline at end of file
+android.nonTransitiveRClass=true
+android.defaults.buildfeatures.resvalues=true
+android.sdk.defaultTargetSdkToCompileSdkIfUnset=false
+android.enableAppCompileTimeRClass=false
+android.usesSdkInManifest.disallowed=false
+android.uniquePackageNames=false
+android.dependency.useConstraints=true
+android.r8.strictFullModeForKeepRules=false
+android.r8.optimizedResourceShrinking=false
+android.builtInKotlin=false
+android.newDsl=false
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 7e4875e..aebc19f 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-agp = "8.13.2"
+agp = "9.2.1"
 datastore = "1.2.0"
 datastorePreferences = "1.2.0"
 kotlin = "2.3.0"
@@ -17,6 +17,14 @@ protobufJavalite = "4.33.4"
 roomRuntime = "2.8.4"
 vbNfcReader = "0.2.0-SNAPSHOT"
 dimReader = "2.1.0"
+playServicesWearable = "20.0.1"
+kotlinxCoroutinesPlayServices = "1.11.0"
+timber = "5.0.1"
+tinylog = "2.7.0"
+retrofit = "2.9.0"
+gson = "2.10.1"
+okhttp = "4.11.0"
+ksp = "2.3.2"
 
 [libraries]
 androidx-compose-material = { module = "androidx.compose.material:material" }
@@ -46,9 +54,20 @@ protobuf-gradle-plugin = { module = "com.google.protobuf:protobuf-gradle-plugin"
 protobuf-javalite = { module = "com.google.protobuf:protobuf-javalite", version.ref = "protobufJavalite" }
 vb-nfc-reader = { module = "com.github.cfogrady:vb-nfc-reader", version.ref = "vbNfcReader" }
 dim-reader = { module = "com.github.cfogrady:vb-dim-reader", version.ref = "dimReader" }
+play-services-wearable = { group = "com.google.android.gms", name = "play-services-wearable", version.ref = "playServicesWearable" }
+kotlinx-coroutines-play-services = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-play-services", version.ref = "kotlinxCoroutinesPlayServices" }
+timber = { module = "com.jakewharton.timber:timber", version.ref = "timber" }
+tinylog-api = { module = "org.tinylog:tinylog-api", version.ref = "tinylog" }
+tinylog-impl = { module = "org.tinylog:tinylog-impl", version.ref = "tinylog" }
+retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "retrofit" }
+retrofit-converter-gson = { module = "com.squareup.retrofit2:converter-gson", version.ref = "retrofit" }
+gson = { module = "com.google.code.gson:gson", version.ref = "gson" }
+okhttp-logging-interceptor = { module = "com.squareup.okhttp3:logging-interceptor", version.ref = "okhttp" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+vksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
+vprotobuf = { id = "com.google.protobuf", version.ref = "protobufGradlePlugin" }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 2c9b214..ebefeb4 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Tue Dec 24 10:55:57 UTC 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists