If it was me I'd get another s4 or an s5.
The only tricky bit is there is no development for the s5.
One would consider stuff like the new HTC phones (m8, etc), but they just aren't on the same level as the Samsung flagships.
I'm in a similar boat. My sweetie has my old Hercules. I'd like to give her my s4 and get an s5, but it would be a downgrade. No insane kit kat. No wicked. No cyanogen.
Can't do it.
So if my phone broke I'd get another s4.
Sent from my SGH-M919 using XDA Premium 4 mobile app