The Galaxy S III Mini has a 4 inch screen - compared to its big brother's 4.8 inch size - as well as scaled-down computing power inside.
It runs on Android's 4.1 Jelly Bean operating system and is powered by a dual-core processor - about half the kick of the quad-core chip in the full sized version.
There is no mention, either, of LTE connectivity that would allow it to run on the soon-to-be launched 4G network in the UK.
In comparison, the recently-launched iPhone 5 has a similarly-sized 4 inch screen but, with a screen resolution of 1136 x 640 pixels, is sharper than the Mini's 800 x 480 display.
And at 5 mp, the Mini's camera loses out to the 8 mp version present on both the S III and the new iPhone.
So it's probably safe to assume that the Mini will be priced significantly lower than its higher-end competitors.
Samsung confirmed it'll go on sale in Britain in November.
Simon Stanford, Vice President, Telecommunications & Networks Division, Samsung UK and Ireland said:
The award winning Galaxy S III has been extremely well received globally since it launched earlier this year so we are thrilled to be able to offer our customers the same revolutionary design, intuitive usability and intelligence in a mini version.
We will continue to develop smartphones to cater for a variety of customer needs and this latest release demonstrates our ongoing commitment to offering our customers more choice at every price point.