Sony UK is running a deal via the Xperia Lounge app through which you can get the SmartBand SWR10 for just £39.99, which is half off the smartband's retail price of £79.99.
To claim the offer, proceed to Sony's mobile store, add the SmartBand SWR10 to your cart and enter the voucher code "xl62" at checkout to receive the discount. For the time being, the deal seems to be restricted to the UK. Considering that you can pair the smartband with the accompanying Lifelog app on non-Xperia devices, the deal is a great way to grab an activity tracker on the cheap.
Anyone interested in the promotion? What wearable devices do you use for tracking your activity?