Aspects of the technology described herein relate to detecting motion during collection of ultrasound data. Some embodiments include automatically comparing first ultrasound data collected from a set of locations at a first time and second ultrasound data collected from the set of locations at a second time to determine that a difference between the first and second ultrasound data exceeds a threshold difference. The set of locations may be scanline. Some embodiments include determining based on motion data from a motion sensor on the ultrasound device that an amount of motion exceeds a threshold amount of motion. An action may be performed based on determining that the difference between the first and second ultrasound data exceeds the threshold difference and/or that the amount of motion exceeds the threshold amount of motion. For example, the ultrasound data collection may be aborted, restarted, or a notification about motion may be generated.