Global E-Cigarette Market Size, Share, Demand Report By Product Type (Disposable E-Cigarettes, Rechargeable Pod Systems, Modular Vaporizers, Hybrid Devices), By Nicotine Type (Nicotine-Based, Nicotine-Free), By Flavor Type (Tobacco, Menthol, Fruit & Candy, Beverage & Dessert), By Distribution Channel (Online Retail, Specialty Vape Shops, Convenience Stores, Supermarkets & Hypermarkets, Tobacco Stores), By End User (Adult Smokers, Young Adults, Recreational Users, Smoking Cessation Users), By Region & Segment Forecasts, 2026–2031