The route from Osaka to Higashihiroshima is primarily serviced by the Sanyo Shinkansen, which includes both the Nozomi and Mizuho trains. The Nozomi Shinkansen can reach impressive speeds up to 300 km/h (186 mph) and completes the journey in roughly 1 hour and 15 minutes, making it the fastest option available. It features fewer stops on the way, bypassing smaller stations for a swifter travel experience. Conversely, the Mizuho service also operates on this route but takes approximately 1 hour and 30 minutes, stopping at various stations such as Okayama and Kurashiki, allowing for better access to the local regions. Both train types offer a selection of seating options, including Ordinary and Green classes, ensuring travelers have suitable choices for their comfort preferences. Onboard amenities include spacious seating and food and beverage services, enhancing the overall travel experience. The Nozomi Shinkansen is perfect for those wanting the fastest transit, while the Mizuho provides a balance between speed and access to more destinations.