Sony xperia Z2 is better than samsung galaxy s5:
Xperia Z2 benefits over Samsung S5
-- Sony Xperia Z2 looks premium
-- Screen Clearity of Sony Xperia z20 is better
-- Sound quality is better
Samsung S5 benefits over Xperia Z2
-- Better GUI
-- More inbuilt apps
-- Air view, fingerprint scanner, Multi windows.