Yes, the Nozomi is the fastest and most direct service on the Tokaido and Sanyo Shinkansen lines, connecting Tokyo to Osaka and Hakata. While all Shinkansen "bullet" trains on these lines have a similar top operational speed of 300 km/h (186 mph), the Nozomi is the "fastest" because it has the fewest stops. A Nozomi train can complete the journey from Tokyo to Shin-Osaka in just 2 hours and 21 minutes, whereas the Hikari takes about 3 hours and the Kodama takes nearly 4 hours because it stops at every single station. In 2026, these services are primarily operated by the state-of-the-art N700S (Supreme) series, which features improved acceleration and lithium-ion batteries for emergency movement. A key detail for tourists is that the standard Japan Rail Pass does not cover the Nozomi unless you pay an additional "upgrade" fee, making the slightly slower Hikari the primary choice for pass holders.