The main differences between the Royal Enfield Bullet 350 and the Bullet 350X lie in their pricing, styling, and features. The Bullet 350X is priced lower, with an ex-showroom price starting at ?1.12 lakh compared to the Bullet 350's price of ?1.21 lakh. Cosmetically, the Bullet 350X features blacked-out elements and a sportier appearance, whereas the standard Bullet 350 has more chrome accents. The Bullet 350X also offers more color options, including Onyx Black, Bullet Sapphire Blue, and Bullet Silver, while the standard Bullet 350 is available in fewer color variants. Mechanically, both bikes share the same 346cc, single-cylinder, air-cooled engine producing 19.8hp and 28Nm of torque, and they have identical performance specifications. However, the 350X is designed to be more affordable and visually distinct, making it a more accessible and stylish option for buyers.