Rigol DHO914S vs Siglent SDS814X HD
Head-to-head spec comparison to help you pick the right scope for your bench.
Spec-by-Spec Comparison
| Spec | Rigol DHO914S | Siglent SDS814X HD |
|---|---|---|
| Bandwidth | 125 MHz | 100 MHz |
| Sample Rate | 1.25 GSa/s | 2 GSa/s |
| Channels | 4 | 4 |
| Memory Depth | 50 Mpts | 50 Mpts |
| Display Size | 7" | 7" |
| Weight | 1.78 kg | 2.6 kg |
| Price | $769 | $587 |
| Rating | 8.0/10 | 7.5/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | No |
| WiFi | Yes | Yes |
| Battery | No | No |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Rigol DHO914S
Pros
- Built-in 25MHz arbitrary waveform generator — saves buying a separate signal source
- 16 digital channels available via optional logic probe — true mixed-signal capability
- 12-bit ADC with 125MHz bandwidth is a solid all-around combination
- 50Mpt memory depth matches the DHO924S
- Same compact DHO form factor with USB-C power support
- Bode plot analysis built in — useful for filter and feedback loop characterization
Cons
- In the upper-$700s, it costs more than the DHO804 while offering lower bandwidth than the DHO924S
- 125MHz bandwidth is lower than the DHO924S's 250MHz
- Logic analyzer probe is an additional purchase — not included
- Fan noise is present, consistent with the DHO series
- The DHO924S also includes a function generator, making the price gap harder to justify
Siglent SDS814X HD
Pros
- 12-bit ADC with Siglent's clean analog front-end — LeCroy lineage in the signal path
- 100MHz bandwidth with the option to unlock higher via software license
- 2GSa/s sample rate outperforms the competing Rigol DHO814's 1.25GSa/s
- 50Mpt memory depth for extended capture sessions
- CAN and LIN decoding included free — Siglent's consistent protocol advantage
- 16 digital channels available with optional logic probe for mixed-signal work
Cons
- At ~$587, it needs a clear reason over the cheaper SDS804X HD
- Siglent's smaller community means fewer tutorials and troubleshooting resources
- No built-in function generator without the optional add-on
- The SDS804X HD around $461 offers 70MHz (unlockable to 200MHz) for about $126 less
Our Verdicts
Rigol DHO914S
The Rigol DHO914S is Rigol's Swiss Army knife oscilloscope — 4 analog channels, a 25MHz function generator, optional 16-channel logic analyzer, and Bode plot analysis in the compact DHO form factor. The mixed-signal capability is the real differentiator: if you're debugging embedded systems where you need to correlate analog and digital signals simultaneously, the logic analyzer option makes this genuinely useful in ways a pure analog scope isn't. The built-in AWG saves you $100-200 on a standalone function generator. The catch is that pure oscilloscope buyers can either spend less on a DHO804 or spend more on the 250MHz DHO924S. The DHO914S only pulls ahead if you need the logic analyzer capability or the Bode plot feature for control loop design.
Siglent SDS814X HD
The Siglent SDS814X HD steps up to 100MHz from the SDS804X HD's 70MHz, keeping the same excellent 12-bit ADC, 2GSa/s sample rate, and 50Mpt memory. It competes directly with the Rigol DHO814 at a similar price point, and wins on sample rate and memory depth. The free CAN/LIN decoding is Siglent's consistent advantage over Rigol for automotive work. At ~$587 though, the value proposition gets complicated: the SDS804X HD below it is cheaper and unlockable, while the DHO924S sits higher as a premium 250MHz touchscreen upgrade. The SDS814X HD makes the most sense if you need that clean 12-bit Siglent ADC at 100MHz and want CAN/LIN decoding without additional license fees, particularly for automotive or precision analog work.