Cam checked out the 640 XL back in March when it was announced at MWC, and now, it's landed in his office, in full retail packaging. He checks out what comes in the box, and what it's like to power on and use.
Key specs include:
5.7-inch IPS LCD display, 720x1280 resolution
13MP Carl Zeiss camera w/1080p video
Single LED flash
5MP front camera w/1080p video
1.2GHz quad-core Snapdragon 400 processor
Expandable up to 128GB via Micro SD
3,000mAh removable battery
Available in LTE and Dual-SIM models globally
Runs Windows 8.1 with Lumia Denim
Short spoiler: For the ~£200 GBP ($295 USD approx) it's pretty great value for money.