Deciding on new subscription but....

I am in a dilemma kind of regarding 2 options. Norton 360 premier multi device (3!) is my current product 10 days remaining with back up to renew cost £79.99?  My other option is  Norton security premium 1st year price  only £50 and it does up to 10 devices.  What is the difference or are they the same product under a different name. So if I renew at £79.99 I would be getting ripped off by £30?  I am after multi device  firewall security  just these different prices doing my head in lol.