diff --git a/android/src/main/java/com/amplitude/android/Configuration.kt b/android/src/main/java/com/amplitude/android/Configuration.kt
index db085750..e4188e2b 100644
--- a/android/src/main/java/com/amplitude/android/Configuration.kt
+++ b/android/src/main/java/com/amplitude/android/Configuration.kt
@@ -1,7 +1,6 @@
 package com.amplitude.android
 
 import android.content.Context
-import com.amplitude.android.events.Plan
 import com.amplitude.android.utilities.AndroidLoggerProvider
 import com.amplitude.android.utilities.AndroidStorageProvider
 import com.amplitude.core.Configuration
@@ -9,24 +8,25 @@ import com.amplitude.core.EventCallBack
 import com.amplitude.core.LoggerProvider
 import com.amplitude.core.ServerZone
 import com.amplitude.core.StorageProvider
+import com.amplitude.core.events.Plan
 
 class Configuration @JvmOverloads constructor(
     apiKey: String,
     val context: Context,
-    flushQueueSize: Int = FLUSH_QUEUE_SIZE,
-    flushIntervalMillis: Int = FLUSH_INTERVAL_MILLIS,
-    instanceName: String = DEFAULT_INSTANCE,
-    optOut: Boolean = false,
-    storageProvider: StorageProvider = AndroidStorageProvider(),
-    loggerProvider: LoggerProvider = AndroidLoggerProvider(),
-    minIdLength: Int? = null,
-    partnerId: String? = null,
-    callback: EventCallBack? = null,
-    flushMaxRetries: Int = FLUSH_MAX_RETRIES,
-    useBatch: Boolean = false,
-    serverZone: ServerZone = ServerZone.US,
-    serverUrl: String? = null,
-    plan: Plan? = null,
+    override var flushQueueSize: Int = FLUSH_QUEUE_SIZE,
+    override var flushIntervalMillis: Int = FLUSH_INTERVAL_MILLIS,
+    override var instanceName: String = DEFAULT_INSTANCE,
+    override var optOut: Boolean = false,
+    override val storageProvider: StorageProvider = AndroidStorageProvider(),
+    override val loggerProvider: LoggerProvider = AndroidLoggerProvider(),
+    override var minIdLength: Int? = null,
+    override var partnerId: String? = null,
+    override var callback: EventCallBack? = null,
+    override var flushMaxRetries: Int = FLUSH_MAX_RETRIES,
+    override var useBatch: Boolean = false,
+    override var serverZone: ServerZone = ServerZone.US,
+    override var serverUrl: String? = null,
+    override var plan: Plan? = null,
     val useAdvertisingIdForDeviceId: Boolean = false,
     val useAppSetIdForDeviceId: Boolean = false,
     val newDeviceIdPerInstall: Boolean = false,
@@ -38,6 +38,6 @@ class Configuration @JvmOverloads constructor(
     val trackingSessionEvents: Boolean = true
 ) : Configuration(apiKey, flushQueueSize, flushIntervalMillis, instanceName, optOut, storageProvider, loggerProvider, minIdLength, partnerId, callback, flushMaxRetries, useBatch, serverZone, serverUrl, plan) {
     companion object {
-        const val MIN_TIME_BETWEEN_SESSIONS_MILLIS: Long = 5 * 60 * 1000
+        const val MIN_TIME_BETWEEN_SESSIONS_MILLIS: Long = 300000
     }
 }
diff --git a/android/src/main/java/com/amplitude/android/events/Export.kt b/android/src/main/java/com/amplitude/android/events/Export.kt
index 6d6d34e0..8e953592 100644
--- a/android/src/main/java/com/amplitude/android/events/Export.kt
+++ b/android/src/main/java/com/amplitude/android/events/Export.kt
@@ -16,7 +16,7 @@ open class EventOptions : EventOptions()
 open class Identify : Identify()
 open class Revenue : Revenue()
 open class RevenueEvent : RevenueEvent()
-open class Plan(
+open class Plan @JvmOverloads constructor(
     branch: String? = null,
     source: String? = null,
     version: String? = null,
diff --git a/core/src/main/java/com/amplitude/core/Amplitude.kt b/core/src/main/java/com/amplitude/core/Amplitude.kt
index 2005c169..99514d2e 100644
--- a/core/src/main/java/com/amplitude/core/Amplitude.kt
+++ b/core/src/main/java/com/amplitude/core/Amplitude.kt
@@ -86,10 +86,14 @@ open class Amplitude internal constructor(
      *
      * @param event the event
      * @param callback the optional event callback
+     * @param options optional event options
      * @return the Amplitude instance
      */
     @JvmOverloads
-    fun track(event: BaseEvent, callback: EventCallBack? = null): Amplitude {
+    fun track(event: BaseEvent, options: EventOptions? = null, callback: EventCallBack? = null): Amplitude {
+        options ?. let {
+            event.mergeEventOptions(it)
+        }
         callback ?. let {
             event.callback = it
         }
diff --git a/core/src/main/java/com/amplitude/core/Configuration.kt b/core/src/main/java/com/amplitude/core/Configuration.kt
index 4356ad7a..1761dea9 100644
--- a/core/src/main/java/com/amplitude/core/Configuration.kt
+++ b/core/src/main/java/com/amplitude/core/Configuration.kt
@@ -9,20 +9,20 @@ typealias EventCallBack = (BaseEvent, status: Int, message: String) -> Unit
 
 open class Configuration @JvmOverloads constructor(
     val apiKey: String,
-    var flushQueueSize: Int = FLUSH_QUEUE_SIZE,
-    var flushIntervalMillis: Int = FLUSH_INTERVAL_MILLIS,
-    var instanceName: String = DEFAULT_INSTANCE,
-    var optOut: Boolean = false,
-    val storageProvider: StorageProvider = InMemoryStorageProvider(),
-    val loggerProvider: LoggerProvider = ConsoleLoggerProvider(),
-    var minIdLength: Int? = null,
-    var partnerId: String? = null,
-    val callback: EventCallBack? = null,
-    val flushMaxRetries: Int = FLUSH_MAX_RETRIES,
-    var useBatch: Boolean = false,
-    var serverZone: ServerZone = ServerZone.US,
-    var serverUrl: String? = null,
-    val plan: Plan? = null
+    open var flushQueueSize: Int = FLUSH_QUEUE_SIZE,
+    open var flushIntervalMillis: Int = FLUSH_INTERVAL_MILLIS,
+    open var instanceName: String = DEFAULT_INSTANCE,
+    open var optOut: Boolean = false,
+    open val storageProvider: StorageProvider = InMemoryStorageProvider(),
+    open val loggerProvider: LoggerProvider = ConsoleLoggerProvider(),
+    open var minIdLength: Int? = null,
+    open var partnerId: String? = null,
+    open var callback: EventCallBack? = null,
+    open var flushMaxRetries: Int = FLUSH_MAX_RETRIES,
+    open var useBatch: Boolean = false,
+    open var serverZone: ServerZone = ServerZone.US,
+    open var serverUrl: String? = null,
+    open var plan: Plan? = null
 ) {
 
     companion object {
diff --git a/core/src/test/kotlin/com/amplitude/core/AmplitudeTest.kt b/core/src/test/kotlin/com/amplitude/core/AmplitudeTest.kt
index c5626c71..abeb38fe 100644
--- a/core/src/test/kotlin/com/amplitude/core/AmplitudeTest.kt
+++ b/core/src/test/kotlin/com/amplitude/core/AmplitudeTest.kt
@@ -64,6 +64,30 @@ internal class AmplitudeTest {
                 assertEquals("test", it.plan?.source)
             }
         }
+
+        @Test
+        fun `test track with event object and event options`() {
+            val mockPlugin = spyk(StubPlugin())
+            amplitude.add(mockPlugin)
+            amplitude.setUserId("user_id")
+            amplitude.setDeviceId("device_id")
+            val eventOptions = EventOptions()
+            eventOptions.city = "SF"
+            val event = BaseEvent()
+            event.eventType = "test event"
+            event.region = "CA"
+            amplitude.track(event, eventOptions)
+            val track = slot<BaseEvent>()
+            verify { mockPlugin.track(capture(track)) }
+            track.captured.let {
+                assertEquals("user_id", it.userId)
+                assertEquals("device_id", it.deviceId)
+                assertEquals("${Constants.SDK_LIBRARY}/${Constants.SDK_VERSION}", it.library)
+                assertEquals("CA", it.region)
+                assertEquals("SF", it.city)
+                assertEquals("test", it.plan?.source)
+            }
+        }
     }
 
     @Nested
diff --git a/samples/java-android-app/src/main/java/com/amplitude/android/sample/MainApplication.java b/samples/java-android-app/src/main/java/com/amplitude/android/sample/MainApplication.java
index 7aed5bdd..b42f0f5d 100644
--- a/samples/java-android-app/src/main/java/com/amplitude/android/sample/MainApplication.java
+++ b/samples/java-android-app/src/main/java/com/amplitude/android/sample/MainApplication.java
@@ -6,12 +6,15 @@
 import androidx.annotation.Nullable;
 
 import com.amplitude.android.Amplitude;
-import com.amplitude.android.Configuration;
+import com.amplitude.android.AmplitudeKt;
+import com.amplitude.android.events.Plan;
 import com.amplitude.core.events.BaseEvent;
 import com.amplitude.core.platform.Plugin;
 
 import java.util.HashMap;
 
+import kotlin.Unit;
+
 public class MainApplication extends Application {
     private static Amplitude amplitude;
 
@@ -19,8 +22,13 @@ public class MainApplication extends Application {
     public void onCreate() {
         super.onCreate();
 
+        Plan plan = new Plan("test branch", "test source", "test version", "test version id");
+
         // init instance
-        amplitude = new Amplitude(new Configuration(BuildConfig.AMPLITUDE_API_KEY, getApplicationContext()));
+        amplitude = AmplitudeKt.Amplitude(BuildConfig.AMPLITUDE_API_KEY, getApplicationContext(), configuration -> {
+            configuration.setPlan(plan);
+            return Unit.INSTANCE;
+        });
 
         // add sample plugin
         amplitude.add(new SamplePlugin());