2016 Mazda 6 vs CX-3

I am looking to buy a used Mazda and am deciding between the Mazda 6 and CX-3. The ones I am looking at are both grand touring trim and have the same mileage(130,000) - the Mazda 6 is 2,800$ more than the CX-3. I am fine with either size of car. Should I save some money and get the CX-3? Is the Mazda 6 more reliable? Thoughts?