Hi Aspirants

there are many technology and tech gadgets related courses in engineering field. some are

• engineering\mechanical desgin (especially CAD)
• Electrical and electronic engineering
• control system engineering
• production engineering
• Desgin engineering
• automotive engineering
• mechanical engineering

but in the field of tech gadgets , production manger job highest paying tech jobs. based on your interest you can make your choice

Hope this Helps

BEST OF LUCK!