Siglent SDS804X HD vs Siglent SDS814X HD
Head-to-head spec comparison to help you pick the right scope for your bench.
Spec-by-Spec Comparison
| Spec | Siglent SDS804X HD | Siglent SDS814X HD |
|---|---|---|
| Bandwidth | 70 MHz | 100 MHz |
| Sample Rate | 2 GSa/s | 2 GSa/s |
| Channels | 4 | 4 |
| Memory Depth | 50 Mpts | 50 Mpts |
| Display Size | 7" | 7" |
| Weight | 2.6 kg | 2.6 kg |
| Price | $461 | $587 |
| Rating | 8.0/10 | 7.5/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | No | No |
| WiFi | Yes | Yes |
| Battery | No | No |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
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
- The DHO804 is the closest Rigol rival near this price
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
Siglent SDS804X HD
The Siglent SDS804X HD is THE competitor to the Rigol DHO804 that Reddit can't stop debating. On paper, 70MHz around $461 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 mid-$400s scope into a legitimate 200MHz instrument for an additional fee. If you value measurement quality over Rigol's UI, this is the 12-bit scope to buy. If you want the simplest modern first scope, compare it directly against the DHO804.
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.