Snide tweets sent backwards and forwards between the two manufacturers.
Phone makers have previously used adverts to attack rivals, but Samsung and HTC went one better by having a domestic on Twitter, according to PCR.
The digital row occurred when HTC bragged about its win at the recent Mobile Awards, rubbing Samsung up the wrong way by tagging the company in its tweet.
@HTC_UK, tweeted: "Last night we won the 'Hottest phone of 2013' at the Mobile Awards #HTCOne Ouch @SamsungMobileUK."
The childish behaviour continued, which prompted LG to step in and act as a referee.
We'll be interested to see if any real world arguments kick off at the ME Awards 2013 – HTC and Samsung are against each other for the Best Device Manufacturer award.
Check out the photos below.