17-rigol-ds1054z-vs-siglent-sds1104x-e-the-budget-scope-war

The Rigol DS1054Z and the Siglent SDS1104X-E are two of the most talked-about budget digital oscilloscopes in the hobbyist and bench technician space. If you need a capable 4-channel scope without breaking the bank, choosing between these two models is a common dilemma. Both offer more bandwidth and features than typical entry-level scopes, but which one suits your actual needs better? This article cuts through the hype to compare them on performance, usability, tool precision, and value for electronic makers and kit builders.

What Are These Scopes?

Rigol DS1054Z

The Rigol DS1054Z is a 4-channel, 50MHz bandwidth digital oscilloscope—with an option to unlock 100MHz via firmware hacks. It’s widely praised for its solid build, intuitive interface, and rich feature set that punches above its modest price. Rigol scopes gained popularity mainly because they deliver surprisingly good sample rates, deep memory, and a responsive user experience.

Siglent SDS1104X-E

The Siglent SDS1104X-E is a 4-channel, 100MHz bandwidth digital oscilloscope that competes directly with the Rigol DS1054Z. It comes from a newer generation of budget scopes offering more bandwidth out of the box, a crisp display, higher sample rate, and updated firmware. Siglent focused on improving waveform capture and analysis features while keeping the price competitive.

See also: 18. Handheld scopes vs bench scopes: real-world verdict

How They Work

Both scopes digitize analog waveforms through analog-to-digital converters and display the signals on bright color LCD screens. They include real-time acquisition modes, advanced triggering, and signal measurement utilities. Inputs are typically via BNC connectors on the front, with capable probes included or sold separately.

• Channels: Both have 4 analog input channels, an essential feature for multi-signal diagnostics.
• Sampling Rate: Siglent edges out with up to 1GSa/s (gigasample per second) on all channels simultaneously, compared to Rigol’s 1GSa/s in single channel mode and less on multiple channels.
• Memory Depth: Both offer deep memory (Rigol up to 24Mpts, Siglent up to 14Mpts max), influencing how detailed and long captured waveforms can be.

Key Comparisons

Feature	Rigol DS1054Z	Siglent SDS1104X-E	Notes
Bandwidth	50MHz (can unlock 100MHz)	100MHz	Siglent natively supports 100MHz.
Sample Rate	1GSa/s single channel	1GSa/s all channels	Siglent has an edge for multi-channel analysis.
Memory Depth	Up to 24Mpts	Up to 14Mpts	Rigol offers longer captures but Siglent’s lower depth is still plenty for most uses.
User Interface	Established, reliable	Modern, intuitive	Siglent offers touch response on some models and updated menus.
Display Resolution	800x480 pixels	800x480 pixels	Similar display quality.
Triggering Capabilities	Edge, Pulse, Video, Slope	Edge, Pulse, Video, Slope, Durations	Siglent adds duration triggering modes.
Connectivity	USB host, USB device, LAN (via adapter)	USB device, LAN, Wi-Fi (optional)	Siglent broadly supports remote control options.
Probe Included	Generic 1X/10X probes	Brand-compatible 1X/10X probes	Quality is similar; both support third-party probes.
Firmware Updates & Hacks	Significant community support, unofficial bandwidth unlock	Official firmware updates, no hacks needed	Rigol enthusiasts appreciate modifiability.
Price	Usually lower than Siglent	Slightly higher	Price difference fluctuates; depends on sales/promotions.

When to Use Each

Use the Rigol DS1054Z If…

• Your work mostly involves signals under 50MHz and you want the option to unlock bandwidth later.
• You appreciate a mature ecosystem with lots of tutorials, hacks, and community help.
• You prefer a straightforward scope with a proven interface and don’t mind firmware tweaks.
• Budget is your absolute top priority; cheaper scope head and accessories are attractive.

Use the Siglent SDS1104X-E If…

• You want 100MHz bandwidth out-of-the-box with minimal fuss.
• Multi-channel signals need simultaneous high sample rates for accurate analysis.
• Features like duration-triggering and Wi-Fi support matter for your workflow.
• You favor a slightly cleaner, modern user interface and official firmware updates.

Tool Precision and Measurement Accuracy

Both scopes provide solid measurement precision typical of budget models—vertical resolution is 8 bits, which is standard for scopes in this price range. Neither is suitable for ultra-high accuracy lab measurements, but both are more than sufficient for debugging microcontrollers, RF front-ends up to their bandwidth, audio circuits, and hobby electronics.

Tools like cursors, automatic measurements (frequency, peak-to-peak voltage, rise time), and FFT spectrum analysis are reliably accurate at these bandwidths, allowing practical troubleshooting and design validation.

Considerations on Probe and Tip Life

The included probes impact measurement precision and the long-term usability of your scope:

• Both scopes typically ship with generic 1X/10X passive probes that balance bandwidth and signal integrity.
• Consider investing in brand-compatible replacement or upgrade probes designed for the bandwidth you require—higher bandwidth scopes benefit from probes with low loading capacitance.
• Probes are subject to wear, particularly tips and compensation components; periodic calibration and tip replacement maintain signal quality.
• Using higher quality tip materials and including protective caps prolongs life.

Practical Use Notes for Beginners and Kit Makers

• If you’re building kits or repairing vintage electronics, 50MHz bandwidth (Rigol stock) is usually enough.
• For experimenting with modern digital signals (like Arduino, ESP32, or simple RF circuits), 100MHz bandwidth and 4 channels of reliable sampling (Siglent) provide extra headroom.
• Be aware that bandwidth “unlocking” on the Rigol is not officially supported and may void warranty or complicate support.
• Both scopes offer USB support for waveform capture or updates, but Siglent’s network/Wi-Fi connectivity provides flexibility if you want remote monitoring.
• Test drives in a local electronics store or via simulator apps can help you get a feel for the interface.

Summary Comparison Table

Criteria	Rigol DS1054Z	Siglent SDS1104X-E	Recommended For
Bandwidth	50MHz (unlockable to 100MHz)	100MHz	Older/Mid-speed signals vs. modern apps
Sample Rate	Up to 1GSa/s (single channel)	1GSa/s all channels	Single channel emphasis vs. multi-channel
Memory Depth	Up to 24Mpts	Up to 14Mpts	Longer captures vs balanced depth
Interface & UX	Established, hackable	Modern, official updates	Tinkerers vs out-of-the-box reliability
Price	Lower	Slightly higher	Budget strict vs value-focused buyers
Connectivity	USB, LAN adapter needed	USB, LAN, Wi-Fi optional	Basic remote vs advanced option
Triggering Modes	Basic + video/slope	Basic + duration triggers	Standard triggers vs specialized needs
Probe Quality & Support	Generic probes, good ecosystem	Brand-compatible probes	Standard kit vs planned upgrade path

Common Pitfalls to Watch Out For

• Firmware Hack Risks: Rigol bandwidth unlock needs the right USB dongle; procedurally tricky and may cause instability.
• Underestimating Bandwidth Needs: Buying 50MHz scope for signals approaching 100MHz leads to misleading signal behavior.
• Misjudging Probe Quality: Using a cheap third-party probe not rated for bandwidth can impair measurement accuracy.
• Forgetting Trigger Modes: Wanting to capture rare glitch events? Check if duration or advanced triggers are essential for your project.
• Overbudgeting Features: Features like Wi-Fi or touch screens may look cool but don’t add practical value for many beginners.

Frequently Asked Questions

Q: Can I safely unlock the Rigol DS1054Z to 100MHz and expect stable operation?
A: Many users successfully unlock bandwidth, but it’s unofficial, may void warranty, and could cause firmware instability. Consider your comfort with tinkering before proceeding.

Q: Does the higher memory depth in Rigol DS1054Z make a big difference for hobby projects?
A: Usually not. Unless you capture long time periods at high sample rates regularly, 14Mpts memory on the Siglent is sufficient.

Q: Are the included probes on either scope good enough for general electronics work?
A: Yes, both ship with decent passive 10X probes suitable for most low-frequency and moderate-speed signals, but upgrading may be needed for precision or high-frequency work.

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If you’re hunting for a budget oscilloscope to match hobbyist or technician needs, both the Rigol DS1054Z and Siglent SDS1104X-E are proven contenders. Choose based on your bandwidth needs, interface preferences, and willingness to tinker with unofficial hacks versus a ready-to-go solution. Either way, you’re getting a strong tool that offers impressive features and precision for under $500.