diff --git a/src/base_object-inl.h b/src/base_object-inl.h
index 5dad438d1f55bf..cee7976c37e004 100644
--- a/src/base_object-inl.h
+++ b/src/base_object-inl.h
@@ -336,6 +336,20 @@ BaseObjectPtrImpl<T, kIsWeak>::operator bool() const {
   return get() != nullptr;
 }
 
+template <typename T, bool kIsWeak>
+template <typename U, bool kW>
+bool BaseObjectPtrImpl<T, kIsWeak>::operator ==(
+    const BaseObjectPtrImpl<U, kW>& other) const {
+  return get() == other.get();
+}
+
+template <typename T, bool kIsWeak>
+template <typename U, bool kW>
+bool BaseObjectPtrImpl<T, kIsWeak>::operator !=(
+    const BaseObjectPtrImpl<U, kW>& other) const {
+  return get() != other.get();
+}
+
 template <typename T, typename... Args>
 BaseObjectPtr<T> MakeBaseObject(Args&&... args) {
   return BaseObjectPtr<T>(new T(std::forward<Args>(args)...));
diff --git a/src/base_object.h b/src/base_object.h
index cc7a220d078552..24965a9879825d 100644
--- a/src/base_object.h
+++ b/src/base_object.h
@@ -195,6 +195,11 @@ class BaseObjectPtrImpl final {
   inline T* operator->() const;
   inline operator bool() const;
 
+  template <typename U, bool kW>
+  inline bool operator ==(const BaseObjectPtrImpl<U, kW>& other) const;
+  template <typename U, bool kW>
+  inline bool operator !=(const BaseObjectPtrImpl<U, kW>& other) const;
+
  private:
   union {
     BaseObject* target;                     // Used for strong pointers.