Well, well, well, so you have an "old" Nexus 4, and you're wondering if it's worth the effort to make a switch to the new Nexus 5? Well, the fact that the newer device has a technological advantage is more than indisputable, but for some of us, the upgrade maneuver is not such a no-brainer...
Source: http://www.phonearena.com/news/Should-you-upgrade-to-the-Google-Nexus-5-or-not_id48911
Source: http://www.phonearena.com/news/Should-you-upgrade-to-the-Google-Nexus-5-or-not_id48911