The Aria is actually 400g lighter but they’re both very light at 7.8kg v 8.2kg fully loaded
Their list price is pretty much the same but a place near me has 1 Aria left (which happens to be my size) and has knocked about €500 off the list price
What’s pulling me towards the Sprint is the slightly more comfy geometry, the disc brakes & also that it has wheel/tire space up to 32mm whereas the Aira is max 28mm
But €500 is quite a hefty difference for those factors