People who are looking to recycle their mobile phone and upgrade to a high-end handset have been handed a few recommendations.
According to Which? Mobile, the HTC Desire HD is one of the best smartphones that is currently on the market.
Indeed, it noted that this particular handset was the first product made by HTC that received its "coveted" Which? Best Buy award.
The device was hailed for offering a very good video camera and music player, while its user interface was also singled out for praise.
Which? Mobile said the HTC Desire HD, which uses the Android 2.2 operating system, would suit a person who wants a "robust multimedia experience" on their mobile phone.
However, the consumer group stated that the device is not necessarily the most affordable product on the market.
"While the handset's 4.3-inch screen strains the pocket somewhat, it's brilliant for browsing the web, playing games and watching a video," it commented.
Which? Mobile also encouraged consumers to consider investing in a BlackBerry Torch, as this would suit those who prefer keypads to touchscreen displays.
Indeed, this model features a slide-out qwerty keyboard, along with a good web browser and music player.
The group noted that the manufacturer Research in Motion has made sure the BlackBerry Torch suits consumers as well as business users.
This, it said, is apparent in its updated user interface that offers people quick access to social networking sites Twitter and Facebook.
Which? Mobile added that the BlackBerry Torch performed very well in its lab tests, although it pointed out that it does not have a particularly long battery life if it is being used to access the net.
This comes after telecoms regulator Ofcom revealed that smartphone subscriber numbers in the UK during January 2010 were 70 per cent higher than the amount recorded a year earlier.