No it does not come with either a UK or Irish sim card. The watch comes with a European ‘always roaming’ SIM card based in Spain with a Spanish mobile number.
With our ‘always roaming’ Spanish sim card included, unlike a standard sim card, they use any 2G mobile network available, enabling the watch to get mobile coverage with any 2G network, not just 1 mobile provider.
In addition there are also no roaming charges anywhere within 31 European Countries and the USA. All calls to the SIM card from outside Spain will be charged by your mobile/landline operator at their tariff for calling Spain. As the device is not intended for long communications, the cost of calling the device should not be significant for general use.
Most mobile operators let you add low rate international calls for no additional charge or for a nominal charge, but you must contact them and Opt in. Check with your mobile operator as it varies from operator to operator.