The study was conducted by the international consulting firm Umlaut, awarding Vodafone 958 points, "out of a possible 1,000 across the various domains analysed, surpassing the second-place competitor (which scored 945 points) by 13 points and the third-place competitor (which scored 932 points) by 26 points."

The operator stood out in the data service area, achieving "465 points out of a possible 480." Regarding crowdsourced quality, based on customer experience, "the score obtained was the highest: 235 points out of 250." In the overall reliability category, "which analyses data, crowdsourcing, and voice, Vodafone also achieved the highest score, 577 out of a possible 600 points, with a 'very good' rating."

"Given this performance, Umlaut awarded Vodafone's mobile network in Portugal the title of Best in Test."