can i use the same old phone for viewing mails from ebay by reinstaling gmail for ste

[vishal234]

hi all.i am new to this forum.need help from all you knowlediable people.1) can i use the same old phone,with same sim internet connection to view emails forthe stealth account. 2) i have seen that using internet connection of (sim with dongle),each time my ip changes.so can i use the same internet connection(sim in dongle) for new stealth account,as IP changes each time,i reconnect it using dongle