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Rigol DHO814 vs Siglent SDS1104X-E: Which 100 MHz Scope Should You Buy in 2026?

The Siglent SDS1104X-E has been one of the most recommended mid-range oscilloscopes for years thanks to its clean signal quality, fast update rate, and mature firmware. Rigol’s newer DHO814 enters the same price bracket with a compact modern design and a 12-bit ADC that significantly improves low-level detail.

This guide compares both models so you can choose confidently.

Overview

Siglent’s SDS1104X-E delivers excellent value with strong decoding features, fast acquisition, and reliable hardware. 👉 Check Price

Rigol’s DHO814 brings next-generation improvements with a high-resolution ADC, deep memory, and a compact form factor. 👉 Check Price

Specification Comparison

FeatureSiglent SDS1104X-ERigol DHO814
Bandwidth100 MHz100 MHz
Channels44
Sample Rate1 GSa/s1.25 GSa/s
Memory Depth14 Mpts25 Mpts
Vertical Resolution8-bit12-bit
Waveform Update Rate~100k wfms/s~130k wfms/s
FFT QualityGoodExcellent
Display7″7″
💳 Pricing💲 Check Price💲 Check Price

Performance and Functionality

Signal Quality

Siglent SDS1104X-E

  • Clean 8-bit signal path
  • Excellent for general electronics and embedded work

Rigol DHO814

  • 12-bit ADC = ~16× more vertical resolution
  • Much cleaner traces for low-amplitude signals
  • Superior FFT visibility

For audio, sensor analysis, or low-noise measurements, the Rigol DHO814 has a major advantage.

Triggering & Acquisition

SDS1104X-E

  • Fast, stable, mature firmware
  • Excellent serial decode workflow

DHO814

  • Faster UI navigation
  • Slightly higher waveform update rate

Build and Design

Siglent SDS1104X-E

  • Proven, durable bench design
  • Quiet fan
  • Traditional layout

Rigol DHO814

  • Very compact and portable
  • Modern interface
  • Extremely quiet operation

Ideal Use Cases

Use CaseBest ChoiceWhy
BeginnersSDS1104X-EEasiest workflow, great value
Embedded WorkSDS1104X-EStrong decoding performance
Small-Signal / Precision WorkDHO81412-bit resolution
Audio / FFT AnalysisDHO814Cleaner low-level performance
Small WorkspacesDHO814Compact design

Verdict

Choose the Siglent SDS1104X-E if you want:

  • A proven, stable oscilloscope
  • Excellent decoding tools
  • Best value under $500

Buy Siglent SDS1104X-E

Choose the Rigol DHO814 if you want:

  • Cleaner traces and more precision
  • Better FFT performance
  • A compact, modern oscilloscope

Buy Rigol DHO814

Bottom Line

The SDS1104X-E is the best choice for most users – reliable, polished, and excellent for general electronics and embedded debugging.

The DHO814, however, is the superior choice for anyone who needs cleaner analog detail or works with low-level signals, thanks to its 12-bit ADC.

Both scopes are excellent – your decision should depend on whether you value general capability (Siglent) or precision and clarity (Rigol) more.