FNIRSI DPOX180H vs Rigol DS1104Z-S Plus
Head-to-head spec comparison to help you pick the right scope for your bench.
FNIRSI
$110
Rigol
$549
Spec-by-Spec Comparison
| Spec | FNIRSI DPOX180H | Rigol DS1104Z-S Plus |
|---|---|---|
| Bandwidth | 180 MHz | 100 MHz |
| Sample Rate | 0.5 GSa/s | 1 GSa/s |
| Channels | 2 | 4 |
| Memory Depth | 28 Kpts | 12 Mpts |
| Display Size | 2.8" | 7" |
| Weight | 0.285 kg | 3.2 kg |
| Price | $110 | $549 |
| Rating | 5.0/10 | 7.0/10 |
| Protocol Decoder | Yes | Yes |
| Function Gen | Yes | Yes |
| WiFi | No | No |
| Battery | Yes | No |
| Buy on Amazon · $110 | Buy on Amazon · $549 |
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 DS1104Z-S Plus
Pros
- 100MHz bandwidth with 4 channels — no bandwidth hack needed
- Built-in 25MHz function generator saves desk space and cost
- Same excellent trigger set as the DS1054Z
- Protocol decoding (SPI, I2C, UART) included
- Proven platform for teaching labs that need scope plus signal generator
Cons
- At ~$549, the DHO924S delivers more for $100 less
- Same dated interface as the DS1054Z — no touchscreen
- No WiFi or CAN/LIN decoding at this price
- The DS1000Z platform is aging compared to the DHO series
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 DS1104Z-S Plus
The DS1104Z-S Plus is the DS1054Z with the limitations officially removed: full 100MHz bandwidth and a built-in 25MHz function generator. At ~$549, it's the premium version of a proven platform that has a decade of community support behind it. The problem in 2026 is the Rigol DHO924S — it costs $100 less, has 250MHz bandwidth, a 7-inch IPS touchscreen, WiFi, 50Mpt memory, and is generally a better scope in almost every way. The DS1104Z-S Plus's advantage is its established reliability and the integrated function generator, which the base DHO924S also includes. I'd only choose this over the DHO924S if you're buying for a teaching lab with specific software integration requirements, or if you specifically need the proven DS1000Z platform.