What are the benefits of upgrading from MT4 to MT5 from a trader's point of view?

In mt5 is possible run pultipair robots strategy tester, in mt4 only 1 pair, that is one global difference.

MT5 is quicker and more productive than MT4. MT5 is a 64-bit, multi-strung platform, while MT4 is a 32-bit, mono-strung platform. Both MT4 and MT5 contain interior mailing systems, however MT5 offers this help with connections.

MT4 is simpler to use. MT5 offers tools which are however more helpful for experienced traders. With regards to speed though MT5 is better.