H1 4G GPS Τοποθεσία Wi-Fi Μαθητή/Παιδική Έξυπνο ρολόι Τηλέφωνο android εφαρμογή συστήματος εγκατάσταση Bluetooth Smartwatch Κάρτα SIM w5

Hi I bought this smartwatch for my son and it was working and unfortunately the connection to it stopped working two weeks ago, how can you exchange it? It's still new and I didn't think it would crash so quickly.

Very good and very satisfied thank you

🥰🥰🥰💓💓💓 thank you so much jomm 🥰

Great 👍