Tablets are on many gift-giving lists this year, but Consumer Reports has identified one tablet that comes up short.
The Monster M7 is sold exclusively at Walmart for $150. But in Consumer Reports' labs, testers found a problem. The tablet locked up regularly during use.
To show what happened, testers set up a camera over the tablet. An app ran a slide-show of news headlines.
In time-lapse video, the slide show stopped suddenly and the screen went blank.
"We tested three Monster 7 tablets and the screen froze or went blank on each of them. Sometimes it happened in less than an hour, other times it took several hours for the screen to freeze," said tester Dean Gallea.
Testers were able to restart the tablets to clear the problem, but on each tablet tested it happened again.
Consumer Reports has named the Monster M7 a Don't Buy. If you already own the tablet, consider returning it to Walmart, but be aware that they have a 15-day return policy for tablets so you may have to demand your money back.