PicoScope 2204A vs Siglent SDS814X HD
Head-to-head spec comparison to help you pick the right scope for your bench.
Pico Technology
$185
Siglent
$587
Spec-by-Spec Comparison
| Spec | PicoScope 2204A | Siglent SDS814X HD |
|---|---|---|
| Bandwidth | 10 MHz | 100 MHz |
| Sample Rate | 0.1 GSa/s | 2 GSa/s |
| Channels | 2 | 4 |
| Memory Depth | 8 Kpts | 50 Mpts |
| Display Size | N/A | 7" |
| Weight | 0.15 kg | 2.6 kg |
| Price | $185 | $587 |
| Rating | 6.5/10 | 7.5/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | No |
| WiFi | No | Yes |
| Battery | No | No |
| Buy on Amazon · $185 | Buy on Amazon · $587 |
Pros & Cons
PicoScope 2204A
Pros
- PicoScope 7 software is genuinely excellent — Reddit consistently ranks it above any standalone scope UI
- 16 protocol decoders included free — SPI, I2C, UART, CAN, LIN, FlexRay, I2S, and more
- Built-in AWG function generator in a $185 package
- Ultra-compact and USB-powered — fits in any laptop bag
- Free lifetime software updates — Pico Technology has an outstanding track record of continued improvement
- Up to 12-bit enhanced resolution mode for precision measurements
Cons
- 10MHz bandwidth is severely limiting — fine for audio and slow digital, useless for fast SPI or RF
- 8Kpt buffer memory is tiny — long captures require streaming mode
- Requires a PC to operate — completely useless without a laptop or desktop
- 100MSa/s sample rate means you're already at Nyquist limits with 10MHz signals
- Only 2 channels of analog input
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, you're paying a premium over the DHO924S ($449) which has 250MHz
- Siglent's smaller community means fewer tutorials and troubleshooting resources
- No built-in function generator without the optional add-on
- The SDS804X HD at $438 offers 70MHz (unlockable to 200MHz) for $150 less
Our Verdicts
PicoScope 2204A
The PicoScope 2204A is the USB scope that Reddit actually respects — unlike the Hantek 6022BE, Pico Technology backs this with genuinely excellent software that gets free updates for life. PicoScope 7 is arguably the best oscilloscope software on any platform, with 16 protocol decoders, advanced math, and a modern interface that makes standalone scope UIs feel dated. The catch is obvious: 10MHz bandwidth and 8Kpt memory mean this is a low-frequency instrument. Audio work, slow serial protocols, power supply debugging, and basic Arduino verification are all fine. Anything above a few MHz — fast SPI, I2C at 400kHz+, or RF work — is off the table. If you already have a laptop and need a scope for bench work under 10MHz, the software quality alone makes this worth the $185. If you need a scope that works without a computer or handles faster signals, look at the DHO802 instead.
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 DHO924S offers 250MHz and a function generator for $449, and the SDS804X HD below it at $438 can be unlocked to 200MHz. 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.