Australian Review: Sony Xperia Z3 Compact – iPhone killer
The Xperia Z3 Compact is the best "small" Android phone you can buy, and a more-than-worthy rival to the iPhone 6. While other small handsets make compromises, sacrificing power and battery life to cut down the size, the Z3 Compact doesn't. And at an outright price of AUD$699, it is the cheapest brand-new flagship that money can buy.
As with most other devices, the Z3 Compact has small issues, a few bits of clunky software and camera than runs a little too hot, but these don't stop it from being a great little handset. More appropriately, a great little flagship.
If you want a small, full-featured Android phone that doesn't sacrifice power for portability, the Sony Xperia Z3 Compact is your best bet.