Thanks for your answer.
I can´t select those ítems on the remote section on the watch (it returns me to the main menú without checking the option). On the phone I can check those options on Local Settings, but it doesn´t seem to take effect on the watch.
I think that isn´t like you´re telling. Until now, I have used Notisync and Notify Me and Notify+ to send incoming messages to the watch, and they always have worked right. The problem is I can´t get the messages content (mail, SMS, WhatsApp...), that is, I receive the notification, the app which has received the notification and the sender, but not the content. Because of that, I´m trying any companion app to sync phone and watch, including this fantastic SWApp.
Another examples. I can check the watch battery charge from my phone even hours after last watch screen switching on. And when I receive a notification or a phone call while the watch and phone screen are on, I don´t get any notification on the watch neither.
Or, perhaps, Loki could correct me...