Each phone's own settings and modem file, against what that phone had before.
{ "WatchCustomerServicePhoneNumber": "114", "MatchingICCIDPrefixes": [ "898206" ], "CellularTrialPlan": { "SupportsTrialPlan": false, "TrialEndPeriod": "0000-00-00T00:00:00Z", "TrialStartPeriod": "0000-00-00T00:00:00Z" }, "ServerURL": "sm-v4-024-a-gtm.pr.go-esim.com", "SupportedSKUs": [ "SKU_EU" ], "MinCompatibleWatchOS": "4.3", "ProvisioningMethod": "CarrierFlow", "SupportsFauxCard": false }