Upendra 
Serializable vs Parcelable
Serializable
Serializable is a standard Java interface. For the serializable class just implement the Serializable interface and add override methods. This approach is a slow process. Its create a lot of temporary objects and a bit of garbage collection but the serializable interface is easier to implement. Java will automatically serialize it in certain situations.
Parcelable
Parcelable is another interface. Despite its rival (Serializable in case you forgot), it is a part of the Android SDK. Now, Parcelable was specifically designed in such a way that there is no reflection when using it. That is because we are being really explicit for the serialization process.
Conclusion
- Parcelable is faster than Serializable interface
- Parcelable interface takes more time to implement compared to Serializable interface (with Kotlin this is not true)
- Serializable interface is easier to implement
- Serializable interface creates a lot of temporary objects and causes quite a bit of garbage collection
Links
https://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html
https://developer.android.com/reference/android/os/Parcelable.html
https://android.jlelse.eu/parcelable-vs-serializable-6a2556d51538
