[1] They have LCD passenger information displays above the doors,[1] as well as wheelchair-accessible and stroller-accessible "free spaces" on all cars.

[1][2] Internally, the trains are equipped with security cameras and emergency call switches.

[9] On 24 December 2024, JR East announced another subseries that will run on the Senseki Line in the Sendai area.

[12][3] The trains are painted in the Uchibo/Sotobo Line color scheme and formed as two-car sets with four doors per car.

[11] The series serves the following sections of lines:[6] As of 19 March 2021[update], 12 two-car sets (R01–R12) are based at Makuhari Rolling Stock Centre in Chiba Prefecture and formed with 1 motored ("M") car and 1 trailer ("T") car.

[citation needed] Passenger accommodation consists of a combination of longitudinal and transverse seating.

[1] Priority seating and wheelchair- and stroller-accessible "free spaces" are provided in each car.

A total of 12 four-car trains were built for the Sagami Line;[8] the first set (G-01) entered service on 18 November 2021.