FNIRSI 1014D vs Siglent SDS814X HD
Head-to-head spec comparison to help you pick the right scope for your bench.
Spec-by-Spec Comparison
| Spec | FNIRSI 1014D | Siglent SDS814X HD |
|---|---|---|
| Bandwidth | 100 MHz | 100 MHz |
| Sample Rate | 1 GSa/s | 2 GSa/s |
| Channels | 2 | 4 |
| Memory Depth | 240 Kpts | 50 Mpts |
| Display Size | 7" | 7" |
| Weight | 0.68 kg | 2.6 kg |
| Price | $169.99 | $587 |
| Rating | 5.5/10 | 7.5/10 |
| Protocol Decoder | No | Yes |
| Function Gen | Yes | No |
| WiFi | No | Yes |
| Battery | Yes | No |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
FNIRSI 1014D
Pros
- Affordable entry point around $170
- Built-in function generator is rare at this price
- Portable tablet form factor with battery backup
- Touchscreen interface is genuinely intuitive for beginners
- 100MHz bandwidth is impressive for a sub-$200 scope
Cons
- 240Kpt memory depth is dangerously shallow — you'll hit this limit fast
- Build quality is plasticky; the corners flex under light pressure
- Calibration and accuracy lag well behind established brands
- No protocol decoding — can't decode SPI or I2C
- Firmware updates have been inconsistent
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
FNIRSI 1014D
The FNIRSI 1014D is one of the cheapest ways to get a real oscilloscope on your bench. At around $170, it's hard to complain about 100MHz bandwidth and a built-in signal generator — both of which would cost more from many established bench-scope brands. The honest limitation is the 240Kpt memory depth, which is genuinely painful the moment you try to capture anything longer than a few milliseconds at full sample rate. I'd call this a learning tool, not a precision instrument. If you just want to see what your Arduino signals look like and learn what triggering means, it's a solid starting point. But if you need to trust your measurements or capture serial transactions, save up for a Rigol or Siglent — you'll thank yourself later.
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.