It's been a year since the Xperia Z3 Compact but Sony has announced a new mini flagship phone at IFA 2015. Here's what you need to know about the Xperia Z5 Compact release date, price, specs and new features. See also: Best new phones you should be excited about this year (and in 2016)

Sony also used IFA 2015 to announce an Xperia Z5 and Xperia Z5 Premium, too.

We've always liked Sony's approach to producing a smaller flagship handset – essentially making it smaller without downgrading all of the specs. So it's nice to see a new model in the form of the Xperia Z5 Compact.

"Smartphones are part of people's lives" said Hiroki Totoki, President and CEO at Sony Mobile Communications. "Since users already create, share and enjoy most of their content on the go – we've set out to bring Sony's latest innovations in camera, design and display to ensure the Xperia Z5 series is the best possible lifestyle and entertainment platform."

Sony Xperia Z5 phone range

Sony Xperia Z5 Compact release date and price UK

Carphone Warehouse, which has the exclusive on the white and coral models in the UK, is now selling the Sony Xperia Z5 Compact SIM-free at £449.99, and on a range of contracts.

Sony Xperia Z5 specs and new features

You'll notice that the design of the Xperia Z5 and Z5 Compact is a tweaked with a frosted glass rear cover but more importantly a new flat and rectangular power button. It's sad to lose the iconic round one but we welcome the addition of a fingerprint scanner. Sony admits that it's late to the game on this front but claims it's the best.

Sony Xperia Z5 Compact fingerprint scanner

The screen size and resolution remain at 4.6in and 720p but there's a new processor in the form of a Qualcomm Snapdragon 810

As well as the fingerprint scanner, another key new feature is an upgraded camera which is the first since the Xperia Z1. It's now 23Mp (up from 21Mp) and Sony claims it has the fastest autofocus at 0.03 seconds, x5 Clear Image zoom and the best low light performance.

The phone is still waterproof (up to IP68) and will be available in for colour options: white, graphite black, yellow and coral. You'll be pleased to hear there's a Micro-SD card slot which can take up to 200GB.

See below for full Sony Xperia Z5 specifications:

    Android 5.1 Lollipop
•    4.6in HD IPS display (720x1280)
•    Qualcomm Snapdragon 810, 64-bit, octa-core
•    2GB RAM
•    Up to 32GB internal storage
•    Micro-SD card slot, up to 200GB
•    23Mp rear camera
•    5Mp front camera
•    2700mAh battery
•    Nano-SIM
•    IP65/68 waterproof
•    White, Graphite Black, Gold, Green
•    65x127x8.9mm
•    138g