After dinner, you're relaxing with a few puffs. Maybe you've noticed your device getting warmer, or the flavor is fading. That's another sign the puff count isn't the full story. The device's performance degrades as the battery drains and the coil wears out. So the last few hundred puffs might taste burnt or produce less vapor.

Think about your own routine: do you take long, slow draws or quick, short ones? A device that lasts 15,000 puffs for the average tester might only give you 10,000 if you take longer draws. That's not a defect—it's just physics. Knowing your habits helps you choose a device that matches your needs.