FNIRSI 1014D vs Rigol DHO914S
Head-to-head spec comparison to help you pick the right scope for your bench.
FNIRSI
$115
Rigol
$549
Spec-by-Spec Comparison
| Spec | FNIRSI 1014D | Rigol DHO914S |
|---|---|---|
| Bandwidth | 100 MHz | 125 MHz |
| Sample Rate | 1 GSa/s | 1.25 GSa/s |
| Channels | 2 | 4 |
| Memory Depth | 240 Kpts | 50 Mpts |
| Display Size | 7" | 7" |
| Weight | 0.68 kg | 1.78 kg |
| Price | $115 | $549 |
| Rating | 5.5/10 | 8.0/10 |
| Protocol Decoder | No | Yes |
| Function Gen | Yes | Yes |
| WiFi | No | Yes |
| Battery | Yes | No |
| Buy on Amazon · $115 | Buy on Amazon · $549 |
Pros & Cons
FNIRSI 1014D
Pros
- Affordable entry point at ~$115
- 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 an $80 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
Rigol DHO914S
Pros
- Built-in 25MHz arbitrary waveform generator — saves buying a separate signal source
- 16 digital channels available via optional logic probe — true mixed-signal capability
- 12-bit ADC with 125MHz bandwidth is a solid all-around combination
- 50Mpt memory depth matches the DHO924S
- Same compact DHO form factor with USB-C power support
- Bode plot analysis built in — useful for filter and feedback loop characterization
Cons
- At ~$549, you're paying $100 more than the DHO924S which has 250MHz bandwidth
- 125MHz bandwidth is lower than the DHO924S's 250MHz
- Logic analyzer probe is an additional purchase — not included
- Fan noise is present, consistent with the DHO series
- The DHO924S also includes a function generator, making the price gap harder to justify
Our Verdicts
FNIRSI 1014D
The FNIRSI 1014D is one of the cheapest ways to get a real oscilloscope on your bench. At around $115, it's hard to complain about 100MHz bandwidth and a built-in signal generator — both of which would cost more from Hantek. 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.
Rigol DHO914S
The Rigol DHO914S is Rigol's Swiss Army knife oscilloscope — 4 analog channels, a 25MHz function generator, optional 16-channel logic analyzer, and Bode plot analysis in the compact DHO form factor. The mixed-signal capability is the real differentiator: if you're debugging embedded systems where you need to correlate analog and digital signals simultaneously, the logic analyzer option makes this genuinely useful in ways a pure analog scope isn't. The built-in AWG saves you $100-200 on a standalone function generator. The catch is the DHO924S at $449 — it also has a function generator and offers 250MHz bandwidth for $100 less. The DHO914S only pulls ahead if you need the logic analyzer capability or the Bode plot feature for control loop design. For pure oscilloscope work, the DHO924S remains the better value.