Currently, I carry around an iPhone 5S (my main phone, Globe locked), an iPhone 5 (my second phone, openline, and for using other countries' sim when I travel), and an iPad mini (for reading, playing, and checking emails with large attachments). The iPhone 5 is showing its age already as the battery is already very erratic. Most of the time, from 50% battery level, it will suddenly drop to around 10-15%. So it needs to be replaced.

Lugging around 3 devices, especially with an iPad mini, is already feeling a little heavy on my man purse. So I've been thinking of just getting an iPhone 6+ to replace 2 of my devices.

So are the pros and cons if I do this?