The train service connecting Santa Clara - Saboia to Vila Nova de Gaia - Devesas is primarily served by the Comboios de Portugal (CP) regional trains, which are known for their punctuality and coverage throughout Portugal. The key train types operating on this route include the Regional and Intercidades trains, both providing comfortable and reliable travel options. The Intercidades service runs at speeds of up to 120 km/h (75 mph) and typically makes fewer stops, allowing for a quicker journey, while the Regional trains are slightly slower, averaging around 80 km/h (50 mph) and stopping at more local stations. Travel times can vary, with the Intercidades taking approximately 2 hours to complete the journey compared to around 2 hours and 30 minutes for the Regional train. Onboard amenities such as spacious seating and restrooms are provided, though the services are generally simpler than long-distance high-speed options found in other countries. While there are no high-speed trains on this route, the combination of Intercidades and Regional trains ensures connectivity across this scenic area of Portugal, allowing travelers to enjoy the picturesque landscapes and local culture.