On the Saku to Annaka route, travelers can choose between the Limited Express and Local trains. The Limited Express, known as the Azusa, operates at speeds of up to 130 km/h (81 mph) and typically completes the journey in approximately 30 minutes, providing a direct connection with fewer stops. In contrast, the Local train takes a more leisurely approach, with travel times extending to about 50 minutes due to more frequent station stops along the way.
The Azusa Limited Express offers comfortable seating arrangements and onboard services, making it a preferable option for those prioritizing speed. Meanwhile, the Local train caters to travelers looking to explore additional stops or who prefer a more scenic ride. Both services ensure a comprehensive travel experience between these two cities in Nagano Prefecture.