10 Best Digital Oscilloscopes 2025 in the United States

The FNIRSI DPOS350P is a versatile handheld oscilloscope that combines four tools in one: a 350 MHz bandwidth oscilloscope, a spectrum analyzer, a frequency response analyzer, and a DDS signal generator. With its 1 GSa/s sample rate and 2 channels, it covers many basic and intermediate testing needs, making it a good fit for electronics hobbyists, students, and field technicians who require portability and multifunctionality. The 7-inch touchscreen with digital phosphor display offers clear visuals and easy interaction, which is helpful if you prefer a tablet-like experience.

It also includes smart features like the ability to store 500 waveforms and 90 screenshots, as well as USB-C charging with an 8000 mAh battery, making it suitable for extended use away from a lab. On the downside, the memory depth of 60 Kpts is moderate, meaning very long signal captures might be limited compared to larger benchtop scopes. While the handheld form factor is great for mobility, it may not replace full-sized oscilloscopes for very detailed or specialized lab work.

The spectrum analyzer and frequency response analyzer functions add extra value, especially for users needing signal integrity and filter analysis. This device provides a solid balance of features and portability for those who want more than just a basic oscilloscope, but don’t require high-end lab equipment.

The RIGOL Digital Oscilloscope DHO814 is designed for professionals and hobbyists who need reliable performance in a compact package. With a bandwidth of 100 MHz and up to 1.25 GSa/s sample rate, it meets the demands of various applications, from basic electronics to more complex signal analysis. The device's 12-bit vertical resolution enhances the clarity of signals, allowing for better observation of small fluctuations that may otherwise go unnoticed.

One of its standout features is the support for up to four analog channels, enabling users to analyze multiple signals simultaneously, which is a significant advantage in complex diagnostic scenarios. The 25 Mpts memory depth allows for capturing longer signals without losing detail, making it ideal for applications requiring extensive data capture. The user-friendly 7-inch touchscreen display coupled with the innovative Flex knob improves usability significantly, making navigation through options intuitive.

However, there are some drawbacks to consider. While the 100 MHz bandwidth is sufficient for many applications, professionals working with higher frequency signals may find it limiting. Additionally, though the waveform search and navigation functions are beneficial, they may have a learning curve for beginners. There are also some competitors that offer higher specifications at a similar price point, which could be a consideration for users wanting the latest features.