diff --git a/xo-allocutil/include/xo/allocutil/gc_ptr.hpp b/xo-allocutil/include/xo/allocutil/gc_ptr.hpp
index bb4225ae..a7d09743 100644
--- a/xo-allocutil/include/xo/allocutil/gc_ptr.hpp
+++ b/xo-allocutil/include/xo/allocutil/gc_ptr.hpp
@@ -69,6 +69,18 @@ namespace xo {
         T * operator->() const { return ptr_; }
         T & operator*() const { return *ptr_; }
 
+        auto operator<=>(gc_ptr<T> other) const
+        requires std::three_way_comparable<T>
+        {
+            return *ptr_ <=> *other.ptr_;
+        }
+
+        bool operator==(gc_ptr<T> other) const
+        requires std::equality_comparable<T>
+        {
+            return *ptr_ == *other.ptr_;
+        }
+
     private:
         T * ptr_ = nullptr;
     };
diff --git a/xo-object/include/xo/object/String.hpp b/xo-object/include/xo/object/String.hpp
index 7b643574..c5a17122 100644
--- a/xo-object/include/xo/object/String.hpp
+++ b/xo-object/include/xo/object/String.hpp
@@ -77,6 +77,24 @@ namespace xo {
              **/
             std::size_t columns() const;
 
+            std::strong_ordering operator<=>(const String & other) const {
+                size_t len1 = std::strlen(chars_);
+                size_t len2 = std::strlen(other.chars_);
+
+                return std::lexicographical_compare_three_way(chars_, chars_ + len1,
+                                                              other.chars_, other.chars_ + len2);
+            }
+
+            bool operator==(const String & other) const {
+                size_t len1 = std::strlen(chars_);
+                size_t len2 = std::strlen(other.chars_);
+
+                if (len1 != len2)
+                    return false;
+
+                return std::memcmp(chars_, other.chars_, len1) == 0;
+            }
+
             // inherited from Object..
             virtual TaggedPtr self_tp() const final override;
             virtual void display(std::ostream & os) const final override;
@@ -128,6 +146,7 @@ namespace xo {
 
         template <>
         struct ObjectConversion<std::string> : public ObjectConversion_String {};
+
     } /*namespace obj*/
 } /*namespace xo*/