Not sure what you mean by "out of the box". Both Google Cloud Storage and Amazon S3 have cross-region replication built in. Something not "in the box" would imply you have to build it yourself, or buy a vendor product, to get it.
Google Cloud Storage's multi-regional support (asynchronously replicated to two or more geographic locations) is even easier than AWS: You simply specify, on bucket creation, whether the bucket should be regional or multi-regional.
Google Cloud Storage's multi-regional support (asynchronously replicated to two or more geographic locations) is even easier than AWS: You simply specify, on bucket creation, whether the bucket should be regional or multi-regional.