1. In terms of accuracy, the measurement accuracy of ultrasonic rangefinders is centimeter-level, and the measurement accuracy of laser rangefinders is millimeter-level;

2. In terms of measuring range, the measuring range of ultrasonic rangefinders is usually within 80 meters, while the measuring range of handheld laser rangefinders can be up to 200 meters, and the measuring range of laser ranging telescopes can be hundreds of kilometers. Even further (the measurement accuracy of laser ranging telescopes is usually 1 meter or tens of centimeters).

3. Ultrasonic range finders are easy to report errors. Since ultrasonic range meters emit sound waves and have fan-shaped emission characteristics of sound waves, when there are many obstacles where the sound waves pass through, more sound waves will be reflected back, causing more interference and making it easier to report errors. The laser rangefinder emits a very small laser beam and then comes back, so as long as the beam can pass through, there is almost no interference.

4. The price of an ultrasonic rangefinder ranges from tens to hundreds of yuan, and the price of a laser rangefinder ranges from a few hundred yuan to thousands or tens of thousands of yuan. There is a big difference depending on the accuracy and distance.