Siglent SDS1104X-U vs Siglent SDS804X HD
Head-to-head spec comparison to help you pick the right scope for your bench.
Siglent
$419
Siglent
$438
Spec-by-Spec Comparison
| Spec | Siglent SDS1104X-U | Siglent SDS804X HD |
|---|---|---|
| Bandwidth | 100 MHz | 70 MHz |
| Sample Rate | 1 GSa/s | 2 GSa/s |
| Channels | 4 | 4 |
| Memory Depth | 14 Mpts | 50 Mpts |
| Display Size | 7" | 7" |
| Weight | 3.1 kg | 2.6 kg |
| Price | $419 | $438 |
| Rating | 7.5/10 | 8.0/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | No | No |
| WiFi | No | Yes |
| Battery | No | No |
| Buy on Amazon · $419 | Buy on Amazon · $438 |
Pros & Cons
Siglent SDS1104X-U
Pros
- 4 channels with 100MHz bandwidth — best of both in Siglent's lineup
- CAN and LIN decoding included — no license fees unlike Rigol
- 14Mpt memory depth for long capture sessions
- Better probe compensation and input specs than older Siglent models
- Siglent's firmware has matured significantly with recent updates
Cons
- ~$419 for a 100MHz, non-touchscreen scope is a stiff ask
- No touchscreen — button navigation only
- 1GSa/s sample rate is adequate but not exceptional
- Rigol DHO924S offers 250MHz and a touchscreen for $30 more
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
Siglent SDS1104X-U
The Siglent SDS1104X-U is Siglent's answer to the 4-channel mid-range market, and its CAN/LIN decoding is its killer differentiator. Rigol charges extra for CAN decoding on most models; Siglent includes it free. If you're doing automotive embedded work — car CAN bus debugging, LIN network analysis, anything that touches vehicle electronics — the SDS1104X-U at $419 is the most cost-effective path to proper protocol support. For general hobbyist use without automotive protocol requirements, the DS1054Z at $349 remains better value, and the Rigol DHO924S at $449 offers 250MHz bandwidth and a touchscreen for just $30 more. I'd buy the SDS1104X-U specifically if CAN/LIN decoding is non-negotiable.
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.