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Optus Microsoft Lumia 640 Prepaid Mobile Phone Enlarge

Optus Microsoft Lumia 640 Prepaid Mobile Phone

Enhance your productivity by using the Optus Microsoft Lumia 640 Prepaid Mobile Phone. This clever Windows phones makes your everyday tasks easier and more efficient with its fast 1.2GHz Qualcomm® Snapdragon™ processor. Enjoy the added convenience of having Microsoft Office at your fingertips.
  • Screen: 5" HD Display
  • Camera: Rear: 8MP with LED Flash. Front: 0.9MP
  • Storage: 8GB /microSD™ card, up to 128 GB
  • Operating System: Windows 8.1
  • Video: Full HD (1920 x 1080) @30 fps
  • Processor: 1.2GHz Qualcomm® Snapdragon™ Quad-core Processor
  • Connection: Bluetooth 4.0|Wi-Fi|Micro USB
  • Warranty: 12 Months
  • SIM: Micro SIM
Microsoft Lumia 640 Mobile

Product Disclaimer: Officeworks cares greatly about the safety of our customers and makes every effort to ensure that the images, descriptions and formulations of each product we sell are accurate and up to date. However, product formulas can change and there may be slight delays in updating the information online. If you have particular concerns about the materials or ingredients used in this product, please read the label carefully on the product or contact the manufacturer for the most up to date information.


  • Brand
  • Descriptive Colour
  • Operating System
    Windows Phone 8.1
  • Pack Quantity
  • Product Dimensions (mm)
    72W x 141D x 9H mm
  • Product Weight (kg)
  • SIM Card Size
  • USB Cable Included
  • Warranty
    12 month

Cellular Connectivity

  • Service Provider


  • Internet Connectivity


  • Display Resolution
    1920 x 1080
  • Display Size (Diagonal)
    5 in
  • Touch Screen


  • Country of Manufacture
  • Part Number

Photo and Video Capture

  • Camera Flash
    LED flash
  • Primary Camera Quality
    8 Megapixel
  • Secondary Camera Quality
    0.9 Megapixel


  • Interface (Bus) Type
    Micro USB
  • Power & Charging Interface
    Micro-B USB

Processor and Memory

  • Number of Processor Cores
  • Processor Clock Speed
    1.2 GHz
  • RAM Installed Size
    8 GB


  • Expandable Memory
  • Internal Memory Size
    8 GB
  • Max Supported Memory Card Size
    128 GB
  • Supported Flash Memory Cards

Below is general information about the Officeworks Delivery Policy. Your final delivery cost will be calculated in the checkout for your order.

Standard Next Day Delivery

We offer Free Next Day Delivery for orders of $55 or more to metro areas of Brisbane, Melbourne, Geelong, Perth and Sydney.

Premium Same Day Delivery

We offer Same Day Delivery for in stock orders that are ordered before 11:30am and delivered to metro areas of Brisbane, Melbourne, Geelong, Perth and Sydney.

Enter your postcode below for delivery times and cost for your area.

Orders for in stock items placed after 11:30 will be delivered the following business day to metro areas of Brisbane, Melbourne, Geelong, Perth and Sydney.

Larger items and special orders incur additional delivery fees as they require extra handling and take longer to transport. The amount will be calculated at the checkout and is dependent on the size of the item purchased.

If your order also weighs over 200kg, it may be subject to an additional delivery fee. When this fee applies, one of our Customer Service Team Members will contact you prior to shipment with the total delivery cost.


During the 'wet season', deliveries to the Northern Territory and Northern Queensland may take longer due to adverse weather conditions.

For the latest information based on your post code, simply use our delivery estimator in the online shopping cart or call our Customer Service Team on 1300 633 423 from Monday to Friday, 8am-8pm (AEST).

Lowest Price Guarantee - Find an identical stocked item at a lower price and we'll beat it by 5%. (Excludes stock liquidatons, customer special orders and contract pricing.)

Our price checkers guarantee that we bring you the lowest prices possible every day, and that's a promise. However, if you happen to find a cheaper advertised price on an identical stocked item that's in stock with our competitor - even if it's on sale, we will not only match it, we'll beat it by 5%.

All identical products and services with identical terms and conditions that are stocked at Officeworks and in stock at our competitor.
  • Non identical products and services (inclusive of non identical warranties)
  • Package deals i.e. printer and computer bundles
  • Cash back and coupon offers
  • Resellers
  • Customer special orders
  • Contract Pricing
  • Competitor clearance products
Officeworks reserves the right to limit the quantity of products available for price-matching at its discretion. The Lowest Price Guarantee does not extend to resellers.
Identical products are price matched against online stores but as with any other kind of store, the item must be currently in stock. When price matching online stores we also take into account the added cost of delivery. If the identical product can be purchased and delivered via an online store for a total price lower than the one we are offering, we will beat that total price by 5%.

For further information please visit your local Officeworks store and they will be able to assist you with your query.

^ The Lowest Price Guarantee can only be redeemed in store, by fax or by calling 1300 OFFICE (633 423)