Based on a quick discussion in the forum.
base HP: 25 + 1 for every 2 SP earned.
Con bonus: +5 per modifier
This means a 500 SP character has a base health of 275.
This is increased further by Con, anywhere from +5 to +225.
Con heavy characters still have a significant bonus in health, but Characters (such as Jedi specifically) aren’t sponges.