Just as I was heading out to ship back the Lumia 735 review unit (I was sincerely sad to see it go) I was stalled by an early morning visitor. The FedEx man delivered the Microsoft Lumia 640 XL from AT&T. Straight out of the box, this unit is a beast – and in an almost silly way.

I'll be using this as my primary driver for the next week or so, but I'm already worried that I may have to invest in a new wardrobe of pants with larger pockets. But, until I'm ready for a formal review, here's a first look with comments and a dip into the specs.

Brief Specs:

OS

Software release: Windows Phone 8.1 with Lumia Denim

Network

Wi-Fi, Bluetooth 4.0, NFC

Display

5.7" with a display resolution of HD720 (1280 x 720)

Display colors: TrueColor (24-bit/16M)

Display features: Orientation sensor, Low power mode, Sunlight readability enhancements, Corning Gorilla Glass 3, Easy to clean, Lumia Color profile, Wide viewing angle, Capacitive Multipoint-Touch

Memory

1GB of RAM with a mass memory size of 8 GB

Maximum memory card size: 128 GB

Free OneDrive storage up to: 30 GB

Battery

Battery capacity 3000 mAh with maximum standby of 28 days and 25 hour talk time.

Sensors

Sensors: Ambient light sensor, Accelerometer, Proximity sensor, Magnetometer, SensorCore

Processor

CPU name: Qualcomm Snapdragon 400 (Quad core)

Cameras

Main camera 13.0 MP with 4x digital zoom, auto focus, and ZEIS optics

Front-facing camera = Full HD 5MP wide angle with video resolution of 1080p (Full HD, 1920 x 1080)

Size

Height: 157.9 mm; Width: 81.5 mm; Thickness2: 9 mm; Weight: 171 g

Full Specs: Microsoft Lumia 640 XL at AT&T

AT&T is offering the Lumia 640 XL for $0.99 with a 2 year contract, or $249.99 outright.

Or, you can go ahead and buy an unlocked version from Amazon for around $250: Microsoft Lumia 640 XL LTE Dual Sim Unlocked