There are plenty of reviews and comparisons. Suggest you Google with the search term 'Compare IBerry CoreX2 3G with IBerry Auxus AX03G'
That search will also return some YouTube reviews etc.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
What’s happening in VR right now: From psychedelic art to combat therapy
Siri not working? Try these troubleshooting fixes
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.