If comfort and space is the prime consideration, I suggest you get the Camry. It's roomy and rides like a sofa.

However, although both can do the same thing (bring you from point A to point B), there's a bit of a price difference. Base Camry starts at 1.45M. I mean this is really BASE. You'll have to pay 200K more to get to the level of the Mazda's features

For a little less money or 1.39M for the Mazda, you get a lot more in terms of safety devices and other functional features like leather, sportshift, more airbags, foglamps, better handling, etc.

To have a better appreciation, I suggest request a testdrive of both. Mazda Greenhills will bring the car to your place if you live nearby. As for Toyota, they don't allow testdrives. So you'll have to base your opinion on the experience of others.

Good luck.