Digital devices were under a lot of Christmas trees this year as a record 17.5 million Apple or Android devices were activated Christmas Day. App analytics platform Flurry said the total was more than 2 1/2 times the 6.8 million activations on Christmas Day in 2011 and more than four times the average of 4 million activations per day from December 1-20. Flurry, which tracks more than 260,000 apps, say it is able to detect more than 90% of new iOS and Android device activations each day. More tablets were activated on Christmas than smartphones, Flurry said, with Apple and Android tablets accounting for 51% of the day’s activations. That’s in contrast to normal days when smartphones account for 80% of activations, Flurry said. App downloads also saw a Christmas Day spike with more than 328 million apps downloaded, compared to 155 million a day average from December 1-20.