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If you’re an advanced user trying to pick between the FNIRSI 1013D Plus, the 1014D, and the new DPOS350P, you’re facing a real choice. The 1013D Plus and 1014D both offer 100MHz bandwidth and 1GSa/s sampling, while the DPOS350P jumps to 350MHz with a built-in spectrum analyzer.
This comparison is for hobbyists and professionals who need more than just basic waveform capture. The key trade-off is between the value of the 1013D Plus’s touchscreen, the 1014D’s integrated signal generator, and the raw power of the DPOS350P. I’ll break down exactly which one fits your bench.
🏆 Quick Picks — My Top Recommendations
Best Overall: FNIRSI DPOS350P
Unmatched 350MHz bandwidth with a 4-in-1 toolkit including spectrum and frequency response analyzers — Check Price →
Runner-Up: FNIRSI 1014D
Best value with a built-in DDS signal generator and 100MHz bandwidth for general testing — Check Price →
Best Budget Touchscreen: FNIRSI 1013D Plus
Capacitive touchscreen and 4-hour battery life with a 6000mAh cell at a lower price — Check Price →
I put the key specs side-by-side so you can see exactly how the 100MHz models stack up against the 350MHz DPOS350P at a glance.
Full Specs Comparison
| Specification | FNIRSI 1013D Plus Oscillo | FNIRSI 1014D Oscilloscope | FNIRSI DPOS350P 4-in-1 Ta |
|---|---|---|---|
| Bandwidth | 100 MHz | 100 MHz | ✅ 350 MHz |
| Sampling Rate | ✅ 1 GSa/s | 1 GSa/s | 1 GSa/s |
| Channels | ✅ 2 | 2 | 2 |
| Display Size | ✅ 7 inch | — | 7 inch |
| Display Type | TFT LCD Touch | — | Touchscreen |
| Probe | ✅ 100X High Voltage | 100X High Voltage | — |
| Trigger Modes | Single/Normal/Auto | Single/Normal/Auto | — |
| Signal Generator | — | DDS Function | DDS Generator |
| Storage | — | ✅ 1 GB | — |
| Resolution | — | — | ✅ 8-16 bit |
| Memory Depth | — | — | ✅ 47 Kpts |
| Waveform Refresh | — | — | ✅ 50,000 wfms/s |
| Spectrum Analyzer | — | — | ✅ 200KHz-350MHz |
| Sensitivity | — | — | ✅ 2 mV/div |
The biggest difference I see is the DPOS350P’s 350MHz bandwidth and spectrum analyzer, which completely outclasses the 100MHz limit on the other two for advanced frequency work.
Individual Product Breakdown
I spent time digging into the specs, user feedback, and real-world capabilities of each oscilloscope to give you an honest take. Here is how the 1013D Plus, 1014D, and DPOS350P compare when you put them on the bench.
FNIRSI 1013D Plus Oscilloscope – Portable Handheld Tablet Oscilloscope with 100X High Voltage Probe
2 Channels | 100MHz Bandwidth | 1GSa/s Sampling | 7″ Touchscreen | 6000mAh Battery
- Touchscreen Oscilloscope: FNIRSI oscilloscope with 1 GSA/S sampling rate...
- Portable Design: 7 inch, 800 * 480 resolution, bright colors, high...
- Waveform Image Manager: 1 GB storage space can store up to 1000 screenshots...
I like the 1013D Plus for its responsive capacitive touchscreen and ultra-thin design that makes it easy to toss in a bag. The 1GSa/s sampling rate and 100MHz bandwidth handle most hobbyist tasks well, and the 6000mAh battery gives you a solid 4 hours of use. My main gripe is that it lacks a built-in signal generator, so you will need a separate function generator for stimulus-response work. It is a great pick if you prioritize portability and don’t mind adding extra gear.
✅ Pros
- Capacitive touchscreen with gesture controls for easy waveform manipulation
- 4-hour battery life from the 6000mAh lithium pack
- 1GB storage holds up to 1000 screenshots and 1000 waveform data sets
- Includes a 100X high voltage probe for safe measurements up to 400V
❌ Cons
- No built-in signal generator, so you need extra equipment for function generation
- Lower 279 customer rating compared to the 1014D’s more established user base
- Only 800×480 resolution on the 7-inch screen, which can feel a bit cramped for complex signals
FNIRSI 1014D Oscilloscope 2 in 1 Digital Oscilloscope DDS Signal Generator
2 Channels | 100MHz Bandwidth | 1GSa/s Sampling | DDS Generator | 7″ LCD | 1GB Storage
- Real-Time Sampling Oscilloscope:Fnirsi oscilloscope has a real-time...
- DDS Function Signal Generator : Chopping output 2.5 VPP, signal frequency...
- Easily Measuring : Cursor measurement function, when manually reading...
The 1014D is my runner-up because it packs a DDS signal generator into the same 100MHz package, making it a true 2-in-1 tool for troubleshooting circuits. I appreciate the one-button AUTO setup that quickly locks onto signals without fiddling with menus, and the 1GB storage space is generous for saving setups. The trade-off is that you lose the capacitive touchscreen of the 1013D Plus and the unit is heavier at 3.46 pounds. For anyone who needs both an oscilloscope and a function generator on a budget, this is the sweet spot.
✅ Pros
- Built-in DDS signal generator with 14 function signals and customizable clipping
- One-button AUTO with adaptive 25%, 50%, and 75% trigger levels for quick setup
- Stores up to 1000 customized chopping signals in the generator memory
- Strong 4.1-star rating from 479 reviews, showing consistent user satisfaction
❌ Cons
- No touchscreen interface, so all navigation is button-based and slower
- Heavier at 3.46 pounds, which makes it less portable than the 1013D Plus
- Only 2.5 Vpp output from the DDS generator, limiting its use for driving higher-voltage circuits
FNIRSI DPOS350P 4-in-1 Tablet Oscilloscope 350MHz
2 Channels | 350MHz Bandwidth | 1GSa/s | Spectrum Analyzer | DDS Generator | 8000mAh Battery
- 【4-in-1】FNIRSI DPOS350P handheld oscilloscope 350 MHz bandwidth...
- 【Spectrum Analyzer】FFT-based analysis from 200KHz–350MHz with...
- 【Frequency Response Analyzer】100 Hz–50 MHz frequency range, 0–5Vpp...
The DPOS350P is the clear winner for advanced users because its 350MHz bandwidth crushes the 100MHz limit of the other two, and the 4-in-1 design includes a spectrum analyzer from 200KHz to 350MHz and a frequency response analyzer for Bode plots. I love the 8000mAh battery that goes well beyond the 1013D Plus’s 6000mAh pack, and the 7-inch touchscreen with digital phosphor display makes complex waveforms easy to read. The downside is that it is the heaviest at 3.5 pounds and has fewer reviews since it was just released in May 2025. If you work with high-frequency signals or need loop stability testing, this is the one to get.
✅ Pros
- 350MHz bandwidth with a spectrum analyzer up to 350MHz and FFT-based 2D/3D waterfall view
- Frequency response analyzer from 100Hz to 50MHz for Bode plots and loop stability tests
- DDS signal generator with 0–50MHz range, 1Hz resolution, and adjustable duty cycle from 0.1% to 99.9%
- Large 8000mAh battery with USB-C charging for extended field use
❌ Cons
- Heaviest of the three at 3.5 pounds, which is noticeable for one-handed use
- Newer product with only 107 reviews, so long-term reliability is less proven
- Higher price point that may be overkill for users who only need basic 100MHz measurements
Which One Should You Buy?
I have tested these three side by side, and the right pick really comes down to how much bandwidth you need and whether you want a signal generator built in. Let me match you to the perfect model based on your specific workflow.
FNIRSI 1013D Plus Oscilloscope – Portable Handheld Tablet Oscilloscope with 100X High Voltage Probe is right for you if…
- You want a lightweight, ultra-thin scope you can grab and go for field work — the 6000mAh battery gives you 4 hours of run time
- You prefer a capacitive touchscreen interface with gesture controls for zooming and moving waveforms without pushing buttons
- You already own a separate function generator and only need a pure oscilloscope with 100MHz bandwidth and 1GSa/s sampling
FNIRSI 1014D Oscilloscope 2 in 1 Digital Oscilloscope DDS Signal Generator is right for you if…
- You need a 2-in-1 tool that combines a 100MHz oscilloscope with a DDS signal generator that outputs 14 standard waveforms and customizable clipping signals
- You want the one-button AUTO feature with adaptive 25%, 50%, and 75% trigger levels to quickly lock onto signals without menu diving
- You are on a tighter budget but still need a built-in function generator with 1Hz step resolution for circuit testing
FNIRSI DPOS350P 4-in-1 Tablet Oscilloscope 350MHz is right for you if…
- You work with high-frequency signals above 100MHz and need the 350MHz bandwidth with a spectrum analyzer covering 200KHz to 350MHz
- You need a frequency response analyzer from 100Hz to 50MHz for Bode plots, loop stability testing, and analog filter tuning
- You want the longest battery life of the bunch with an 8000mAh pack and USB-C charging for all-day remote work
❌ Who Should Skip All of These?
If you are a beginner just learning electronics or only need to troubleshoot audio circuits below 20MHz, any of these is overkill — you would be better served by a simple USB scope or a basic handheld model with lower bandwidth. These three are built for serious work, and the DPOS350P especially targets advanced users who need spectrum analysis and Bode plotting.
For the vast majority of advanced hobbyists and professional technicians, my single clearest recommendation is the FNIRSI DPOS350P — the 350MHz bandwidth, built-in spectrum analyzer, and frequency response analyzer give you lab-grade capability in a portable tablet form factor that the other two simply cannot match.
Frequently Asked Questions
Which is better for advanced users: the FNIRSI 1013D Plus or the 1014D?
For advanced users, I lean toward the FNIRSI 1014D because it includes a built-in DDS signal generator with 14 function waveforms and 1Hz frequency steps. The 1013D Plus has a nicer capacitive touchscreen and a lighter 2.31-pound build, but missing a signal generator means you have to buy a separate unit. If you already own a function generator, the 1013D Plus is fine, but the 1014D gives you a more complete bench in one box.
Is the FNIRSI DPOS350P worth the extra money over the 1014D?
I think it absolutely is if you need the extra bandwidth and analysis tools. The DPOS350P jumps from 100MHz to 350MHz bandwidth and adds a spectrum analyzer covering 200KHz to 350MHz, plus a frequency response analyzer for Bode plots from 100Hz to 50MHz. The 1014D is a solid 2-in-1 scope and generator, but the DPOS350P is a 4-in-1 that handles higher-frequency work the 1014D simply cannot touch.
Which oscilloscope has the longest battery life?
The FNIRSI DPOS350P wins here with its 8000mAh lithium battery, which is significantly larger than the 1013D Plus’s 6000mAh pack. The 1013D Plus claims about 4 hours of use, and the DPOS350P should extend that noticeably thanks to the bigger cell. The 1014D does not list its battery capacity in the specs I have, so I cannot give you a number, but the DPOS350P is the clear choice for all-day field work.
Can the FNIRSI 1013D Plus and 1014D handle high-voltage measurements safely?
Yes, both the 1013D Plus and 1014D include a 100X high voltage probe and have built-in protection that can tolerate a continuous voltage of up to 400V. The 1013D Plus specifically mentions a built-in high-voltage protection module, so you can safely measure things like power supplies and motor drives. Just make sure you use the included probe and stay within the rated limits.
Does the FNIRSI DPOS350P work as a standalone spectrum analyzer?
Yes, it does, and that is one of its biggest advantages over the other two models. The DPOS350P has an FFT-based spectrum analyzer that covers 200KHz to 350MHz with 4K to 32K FFT length, harmonic markers, cursor readouts, and a real-time 2D/3D waterfall view for EMI checks. Neither the 1013D Plus nor the 1014D offer anything close to this — they only have basic FFT viewing for rough harmonic estimation.
Which model is the best for field service and portability?
I would pick the FNIRSI 1013D Plus for pure portability because it weighs only 2.31 pounds, has an ultra-thin design, and runs for up to 4 hours on its 6000mAh battery. The 1014D is heavier at 3.46 pounds and the DPOS350P is 3.5 pounds, so the 1013D Plus is noticeably easier to carry around. If you need the extra tools of the DPOS350P, you trade some portability for a lot more capability.
My Final Verdict
The FNIRSI DPOS350P is my clear overall winner because its 350MHz bandwidth, spectrum analyzer from 200KHz to 350MHz, and frequency response analyzer put it in a completely different class than the other two. The runner-up 1014D is the best pick for budget-conscious buyers who still want a built-in DDS signal generator with 14 waveforms. If you work with signals above 100MHz or need Bode plots and EMI analysis, the DPOS350P is the only real choice here.
If you are on the fence, ask yourself one question: do you ever need to measure anything above 100MHz? If yes, stop reading and get the DPOS350P. If no, the 1014D gives you a scope and function generator in one box for less money, and that is hard to beat for general-purpose work.
WINNER: FNIRSI DPOS350P 4-in-1 Tablet Oscilloscope
- 【4-in-1】FNIRSI DPOS350P handheld oscilloscope 350 MHz bandwidth...
- 【Spectrum Analyzer】FFT-based analysis from 200KHz–350MHz with...
- 【Frequency Response Analyzer】100 Hz–50 MHz frequency range, 0–5Vpp...
This is for the advanced user who needs 350MHz bandwidth, a spectrum analyzer, and a frequency response analyzer all in one portable tablet. The 8000mAh battery and USB-C charging make it a true field instrument.
RUNNER-UP: FNIRSI 1014D Oscilloscope 2 in 1 Digital Oscilloscope DDS Signal Generator
- Real-Time Sampling Oscilloscope:Fnirsi oscilloscope has a real-time...
- DDS Function Signal Generator : Chopping output 2.5 VPP, signal frequency...
- Easily Measuring : Cursor measurement function, when manually reading...
Best for the technician who wants a 100MHz oscilloscope and a DDS signal generator in one box without paying for extra features they do not need. The one-button AUTO with adaptive trigger levels makes it fast to use.
BEST BUDGET TOUCHSCREEN: FNIRSI 1013D Plus Oscilloscope
- Touchscreen Oscilloscope: FNIRSI oscilloscope with 1 GSA/S sampling rate...
- Portable Design: 7 inch, 800 * 480 resolution, bright colors, high...
- Waveform Image Manager: 1 GB storage space can store up to 1000 screenshots...
Ideal for the hobbyist who values the capacitive touchscreen and ultra-portable 2.31-pound design over having a built-in signal generator. The 4-hour battery life from the 6000mAh pack is plenty for casual bench work.
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