HTC One successor release date revealed: March 25

HTC is gearing up to unveil the successor to its One smartphone a little over a month from now.

The Taiwanese smartphone maker on Monday sent invitations to its next flagship smartphone announcement, occurring at two simultaneous events in New York and London on 25 March.

"It's about time for the best to get even better!" HTC said in a statement accompanying the invite. "This is HTC's next big bet product that will be our primary flagship for 2014."

The invitation is light on details, though recent rumours suggest the HTC One follow-up, codenamed M8, will have a brushed metal body with a 5in 1080p display, 2.5GHz quad-core Snapdragon 800 processor, 3GB of RAM, and run Google's latest mobile OS, Android 4.4 KitKat, according to Trusted Reviews. The phone may also include a second camera sensor on the back, designed to improve focus times and light metering.

The new handset will make its debut a month and a day after Samsung shows off its next-gen Galaxy S5 handset at Mobile World Congress in Barcelona.

A Carphone Warehouse spokesperson said "HTC set the design standard for smartphones in 2013 with the HTC One, which became one of the surprise hits of the year. Having swept the board with awards aplenty, everyone is now keenly watching to see what they follow it up with in 2014. If it pushes the envelope for design and specification, the way the HTC One did last year, then it should be another contender for one of the biggest launches of the year and we're sure that many of our customers will want to snap it up."

This next device is important for HTC, which has been struggling financially recently, and has barely made a dent in a market dominated by Apple and Samsung.

To boost its profile here in the US, the company on Monday launched a program called "HTC Advantage" which will guarantee flagship phone owners two years' worth of Android updates, cracked screen replacements for six months, and extra Google Drive storage.

Meanwhile, PCMag will be on hand at HTC's next flagship event, so stay tuned on March 25 for all the details. For more, see ITProPortal's full review of the HTC One.

This article was updated at 16:31 GMT with a quote from Carphone Warehouse.