Flurry, which tracks 400,000 apps on more than 1.2 billion mobile devices, compared new device activations on Christmas to what the average number for the first three weeks in December and Amazon's devices came out on top, again.
Christmas Day is always a big day for smartphone and tablet activations for major brands, but Amazon's devices have seen the biggest jump in activations for the last three Christmases, according to Flurry Analytics.
Flurry Analytics notes that the new Mayday feature on the Kindle Fire HDX also may have contributed to the device's activation total. The feature allows someone to get help from a customer service representative, making it easier for first-time users to activate the device.
It's worth noting though, that as the mobile device market is maturing, most of the manufacturers are seeing a steady decline in the boost from Christmas Day activations.
—By CNBC's Cadie Thompson. Follow her on Twitter @CadieThompson.