Some E Cigarette Flavors May Be More Harmful Than Others The Atlantic Heated Tobacco Products, Cigarettes, and E Cigarettes: What's the Difference PMI Science Urban Recovery New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact E Cigarettes vs Tobacco Cigarettes : The Electric Tobacconist Ltd.