Rigol DS1054Z vs Siglent SDS804X HD
Head-to-head spec comparison to help you pick the right scope for your bench.
Rigol
$349
Siglent
$438
Spec-by-Spec Comparison
| Spec | Rigol DS1054Z | Siglent SDS804X HD |
|---|---|---|
| Bandwidth | 50 MHz | 70 MHz |
| Sample Rate | 1 GSa/s | 2 GSa/s |
| Channels | 4 | 4 |
| Memory Depth | 12 Mpts | 50 Mpts |
| Display Size | 7" | 7" |
| Weight | 3.2 kg | 2.6 kg |
| Price | $349 | $438 |
| Rating | 8.5/10 | 8.0/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | No | No |
| WiFi | No | Yes |
| Battery | No | No |
| Buy on Amazon · $349 | Buy on Amazon · $438 |
Pros & Cons
Rigol DS1054Z
Pros
- 4 channels at a mid-range price — still rare and genuinely valuable
- 12Mpt memory depth is excellent for long capture sessions
- Massive community: tutorials, hacks, and forum answers everywhere you look
- Well-documented bandwidth hack unlocks 100MHz — free upgrade
- Trigger types rival scopes twice the price
- Protocol decoding (SPI, I2C, UART) included at no extra cost
Cons
- 50MHz stock bandwidth is limiting for faster SPI clocks and RF work
- Interface feels dated compared to the newer Rigol DHO series
- No touchscreen — menu navigation requires physical button presses
- Fan is audible in quiet environments
- The DHO924S has overtaken it on almost every spec at a similar price
Siglent SDS804X HD
Pros
- 12-bit ADC with what Reddit considers a cleaner analog front-end than Rigol — LeCroy heritage shows
- 2GSa/s sample rate is genuinely faster than the DHO804's 1.25GSa/s
- 50Mpt memory depth matches the DHO924S and doubles the DHO804
- CAN and LIN decoding included free — Siglent's standard generosity on protocols
- 70MHz bandwidth is unlockable to 200MHz via software license — massive upgrade path
- 7-inch capacitive touchscreen with responsive multi-touch gestures
Cons
- 70MHz stock bandwidth is limiting — you're paying for the upgrade path, not the base spec
- No built-in function generator (optional add-on)
- Siglent's community is smaller than Rigol's — fewer tutorials and forum answers
- At ~$438, you're close to the DHO924S at $449 which has 250MHz stock bandwidth
Our Verdicts
Rigol DS1054Z
The Rigol DS1054Z is the default recommendation in every electronics forum for a reason — it earned that reputation over a decade of consistent performance. Four channels, 12Mpt memory, comprehensive protocol decoding, and an absurd number of trigger types for ~$349 is a package that nothing in this price range matched for years. The 50MHz bandwidth is the only real limitation, and the well-documented hack to unlock 100MHz makes even that a manageable concern. Yes, the newer Rigol DHO924S has better specs in nearly every category — but the DS1054Z has something no spec sheet can quantify: years of solved problems, answered questions, and tutorials from the EEVblog and r/AskElectronics communities. If you're buying your first serious oscilloscope and want to minimize frustration, this is still a great choice. If you can stretch to $449, the DHO924S is the better buy in 2026.
Siglent SDS804X HD
The Siglent SDS804X HD is THE competitor to the Rigol DHO804 that Reddit can't stop debating. On paper, 70MHz for $438 looks underwhelming — but the real story is Siglent's 12-bit ADC implementation, which the community consistently praises as having a cleaner noise floor than Rigol's, thanks to Siglent's LeCroy heritage in analog front-end design. The 2GSa/s sample rate and 50Mpt memory depth are both better than the DHO804. The bandwidth unlock to 200MHz via software license is the ace up its sleeve — it turns a $438 scope into a legitimate 200MHz instrument for an additional fee. If you value measurement quality over raw bandwidth numbers, this is the 12-bit scope to buy. If you just want the most bandwidth per dollar, the DHO924S at $449 with 250MHz is hard to argue against.