FNIRSI DPOX180H vs Rigol DHO802
Head-to-head spec comparison to help you pick the right scope for your bench.
FNIRSI
$110
Rigol
$329
Verdict
It's a Tie
The FNIRSI DPOX180H and Rigol DHO802 are evenly matched — your choice depends on which features matter most to you.
Spec-by-Spec Comparison
| Spec | FNIRSI DPOX180H | Rigol DHO802 |
|---|---|---|
| Bandwidth | 180 MHz | 70 MHz |
| Sample Rate | 0.5 GSa/s | 1.25 GSa/s |
| Channels | 2 | 2 |
| Memory Depth | 28 Kpts | 25 Mpts |
| Display Size | 2.8" | 7" |
| Weight | 0.285 kg | 1.78 kg |
| Price | $110 | $329 |
| Rating | 5.0/10 | 7.5/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | No |
| WiFi | No | Yes |
| Battery | Yes | No |
| Buy on Amazon · $110 | Buy on Amazon · $329 |
Pros & Cons
FNIRSI DPOX180H
Pros
- Very affordable at ~$110 for what it packs
- 180MHz bandwidth in a genuinely pocket-sized device
- Battery powered and truly portable — shirt-pocket size
- Built-in function generator and multimeter
- Protocol decoding for UART, SPI, and I2C
Cons
- 28Kpt memory depth is critically shallow — limits capture usefulness significantly
- 2.8-inch screen is very small — detailed waveform analysis is uncomfortable
- 500MSa/s sample rate is modest even for a pocket scope
- Accuracy concerns typical of FNIRSI at this price tier
- Build quality is mediocre — the housing feels flimsy
Rigol DHO802
Pros
- 12-bit ADC at $329 — the cheapest way to get modern 12-bit resolution from a major brand
- Same compact form factor and touchscreen as the rest of the DHO800 series
- 25Mpt memory depth is excellent for a scope at this price
- USB-C power means you can run it from a portable battery pack
- Protocol decoding for SPI, I2C, UART, and CAN included
- Modern Rigol UI — the same intuitive touchscreen experience as the DHO924S
Cons
- Only 2 channels — the biggest limitation for embedded debugging
- 70MHz bandwidth is adequate but not exciting
- Fan noise carries over from the DHO800 series
- For ~$120 more, the DHO804 adds 2 more channels which matters enormously
- No function generator
Our Verdicts
FNIRSI DPOX180H
The FNIRSI DPOX180H is a pocket oscilloscope with surprisingly high bandwidth for the money — 180MHz in something smaller than a deck of cards is legitimately impressive. At $110, you also get protocol decoding, a function generator, and a multimeter in the same device. The hard truth is the 28Kpt memory depth and 2.8-inch screen kill its usefulness for anything beyond quick spot checks — you can glance at a signal, but capturing and analyzing a long serial transaction is off the table. The OWON HDS2202S is better in almost every meaningful way if portability is your goal, but it costs $439 versus this scope's $110. At this price, the DPOX180H is best understood as a capable probe-and-check tool, not a primary bench instrument.
Rigol DHO802
The Rigol DHO802 is the budget entry point to 12-bit oscilloscope territory, and at $329 it's genuinely compelling. You get the same modern touchscreen interface, 12-bit ADC, and compact form factor as the rest of the DHO800 series, just with 2 channels instead of 4. The 25Mpt memory and protocol decoding are both strong at this price. The honest question is whether 2 channels are enough for your work — if you're probing a single signal or doing basic Arduino debugging, absolutely. The moment you need to correlate clock and data lines on SPI, or monitor multiple signals simultaneously, you'll wish you had 4 channels. The DHO804 at ~$439 adds those extra channels, and for most users that $110 premium is worth paying upfront rather than regretting later.