Tesco reportedly sold 35,000 of its budget tablet, the Hudl, in just two days following the launch of the device on Monday.
The rapid sale means that the supermarket chain may even already be short on stock come next week, signaling a resounding success.
"Tesco has sold 35k Hudl tablets in the last 2 days, says boss Phil Clarke - may be short on stock next week," tweeted Jennifer Creedy, Retail Week's deputy editor on Wednesday.
The 7in 16GB tablet, revealed last month after weeks of speculation, is available for as little as £60 for those with enough Tesco Clubcard points, and has a reasonably full price tag of £119.
Its competition includes Google's Nexus 7 which starts at £199 and the Kindle Fire HD which starts at £159.
The news comes as research firm eMarketer predicts that tablet sales in the UK will be driven by lower end models in the coming year, and are set to erode Apple's current 60 per cent dominance of the market.
"eMarketer believes that the Amazon Kindle Fire, along with other tablet alternatives such as the smaller-format Hudl, launched by supermarket giant Tesco in late September, will offer cheaper pricing options and boost user numbers," the firm said.
Upon launch, Tesco stated that the Huld is aimed at families, with a screen appearing the first time it is switched on that gives advice on how to put in place safety measures to protect children.
Tesco chief executive, Philip Clarke said: "Hudl is a colourful, accessible tablet for the whole family to enjoy. The first stage in our tablet offering, it's convenient, integrated and easy to use with no compromise on spec. Customers are quite rightly very discerning about the technology they buy so we knew we had to be competitive on all fronts.
"Being online is an increasingly essential part of family life and whilst tablets are on the rise, usage is still quite limited. We feel the time is right for Tesco to help widen tablet ownership and bring the fun, convenience and excitement of tablets to even more customers across the UK. The digital revolution should be for the many, not for the few."