While there have been shedloads of lower-end Lumias these beasties have bigger screens which makes them more useful.
The 5-inch Lumia 640 and 5.7-inch 640 XL, is selling direct from Microsoft in the UK.
The Lumia 640 is priced at £169.99 on the Microsoft Store, although it's currently available only in orange or black.
The spec is pretty impressive for the price. There is a 5-inch ClearBlack IPS LCD with HD (1280x720px) resolution and Corning Gorilla Glass 3, a Quad-core 1.2GHz Qualcomm Snapdragon 400 processor with a 1GB RAM.
It has 8GB onboard storage (plus microSD support up to 128GB) and a backside illuminated 8MP rear camera with LED flash and 1080p video recording.
Of course it has Wi-Fi 802.11 b/g/n and Bluetooth 4.0, 4G LTE connectivity, Ambient light sensor, accelerometer, proximity sensor, magnetometer and SensorCore
The 640 and 640 XL are the first handsets to launch with Windows Phone 8.1 Update 2 onboard.
The Lumia 640 and 640 XL are also the first handsets to come with a free one-year Office 365 Personal subscription for your PC, worth £59.99; previously, this offer had been available exclusively on small Windows tablets and entry-level notebooks.