Ultron 4 Pro
- Good data fit
- Specs Only
- B
- 12 source records
Issue data limited
Vlad Blad Ultron 4 Pro vs Spektra Flux
A structured side-by-side profile for Vlad Blad Ultron 4 Pro vs Spektra Flux, built from indexed specs, seller records, source coverage, and issue-signal data.
This is a data comparison, not a hands-on lab test unless a machine is explicitly marked as tested.
Profile snapshot
Flux
- Good data fit
- Data Profile
- B
- 13 source records
3 signals across 1 sources (High)
Use-case fit
Vlad Blad Ultron 4 Pro
Stroke reach, hit signal, and power stability.
Spektra Flux
Weight, control, and smoother lower-stroke fit.
Vlad Blad Ultron 4 Pro
Stroke reach, hit signal, and power stability for packing.
Key differences
10 differing data points found in the current profiles.
Stroke System
- Ultron 4 Pro
- Adjustable stroke
- Flux
- Fixed stroke
Stroke
- Ultron 4 Pro
- 3.2 / 3.5 / 3.8 / 4.2 / 4.7 / 5.5
- Flux
- 4.0
Needle Depth
- Ultron 4 Pro
- Check specs
- Flux
- 0-4.5
Weight
- Ultron 4 Pro
- 272g
- Flux
- 180g
Voltage
- Ultron 4 Pro
- 12-12V
- Flux
- 5-12V
Runtime
- Ultron 4 Pro
- 22 h
- Flux
- 10 h
Decision snapshot
Ultron 4 Pro
22 h
Stroke reach, hit signal, and power stability.
Stroke reach, hit signal, and power stability for packing.
Pen
Wireless
Flux
Good data fit
Closest overall data-match estimate in this comparison.
180g
Lower listed weight can matter during longer sessions.
€899
13 source records
More source records make the profile easier to verify.
Weight, control, and smoother lower-stroke fit.
Side-by-side specs
| Spec | Ultron 4 Pro | Flux |
|---|---|---|
| Type | Pen | Pen |
| Power | Wireless | Wireless |
| Stroke System | Adjustable stroke | Fixed stroke |
| Stroke | 3.2 / 3.5 / 3.8 / 4.2 / 4.7 / 5.5 | 4.0 |
| Stroke Step | Not listed | Not listed |
| Needle Depth | Check specs | 0-4.5 |
| Weight | 272g | 180g |
| Voltage | 12-12V | 5-12V |
| Runtime | 22 h | 10 h |
| Charge Time | 2 h | 2 h |
| Motor | Brushless | Brushless |
| Motor Size | Not listed | Not listed |
| Motor Speed | 7,800 RPM | 11,000 RPM |
| Frequency | 10-130 Hz | 25-160 Hz |
| Best Price | €1,377 | €899 |
| Sellers | 3 | 3 |
| Source Coverage | B | B |
| Reported Issue Signals | Issue data limited | 3 signals across 1 sources (High) |
Continue your research
Compare next
Sources behind this comparison
Open the underlying profile or a directly indexed source before treating a difference as final.
Ultron 4 Pro
Latest indexed check: May 15, 2026
Vlad Blad Ultron 4 Pro frequency Hz syncOpen source ↗Detail gap resolutionOpen source ↗Ultron 4 Pro sourceOpen source ↗
Full profile →Flux
Latest indexed check: Jul 4, 2026
Detail gap resolutionOpen source ↗FK Irons official spec candidateOpen source ↗FK Irons official spec candidateOpen source ↗
Full profile →Creator / Owner Review Reference Comparison
No curated creator or owner review references are attached to this exact comparison yet. Only strict model-matched references are shown.
Similar Profiles to Check Next
Reading the comparison
Spektra Flux
Closest overall data-match estimate in this comparison.
Spektra Flux
Lower reported issue signal among the compared profiles.
Spektra Flux
Lower listed weight can matter during longer sessions.
Spektra Flux
More source records make the profile easier to verify.
FAQ
Which machine has the closer data fit in Vlad Blad Ultron 4 Pro vs Spektra Flux?
Spektra Flux currently has the closer data-fit estimate. Treat this as a research signal and still compare weight, stroke, seller records, and issue coverage.
Is this Vlad Blad Ultron 4 Pro vs Spektra Flux comparison hands-on tested?
No. It is a structured data comparison unless an individual machine is explicitly marked as hands-on tested.
How should issue signals be read?
Issue signals are public-source research signals, not verified defect rates. Use them as prompts for deeper source checking.