WTK401
- Good data fit
- Specs Only
- C
- 11 source records
Issue data limited
A structured side-by-side profile for Wormhole Tattoo WTK401 vs Solong Tattoo E97, 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.
Issue data limited
Issue data limited
Solong Tattoo E97
Stroke reach, hit signal, and power stability.
Solong Tattoo E97
Weight, control, and smoother lower-stroke fit.
Solong Tattoo E97
Stroke reach, hit signal, and power stability for packing.
| Spec | WTK401 | E97 |
|---|---|---|
| Type | Pen | Pen |
| Power | Wireless | Wireless |
| Stroke System | Fixed stroke | Fixed stroke |
| Stroke | 3.5 | 3.5 |
| Stroke Step | Not listed | Not listed |
| Needle Depth | Check specs | Check specs |
| Weight | 195g | 185g |
| Voltage | 6-11V | 4-12V |
| Runtime | 4 h | 12 h |
| Charge Time | 3 h | 1 h |
| Motor | High-Torque Direct-Drive | Coreless |
| Motor Size | Not listed | Not listed |
| Motor Speed | 8,000 RPM | 6,500 RPM |
| Frequency | 55-165 Hz | 50-173 Hz |
| Best Price | $55.99 | $89.99 |
| Sellers | 1 | 2 |
| Source Coverage | C | C |
| Reported Issue Signals | Issue data limited | Issue data limited |
Solong Tattoo E97
Closest overall data-match estimate in this comparison.
Wormhole Tattoo WTK401
Lower reported issue signal among the compared profiles.
Solong Tattoo E97
Lower listed weight can matter during longer sessions.
Wormhole Tattoo WTK401
More source records make the profile easier to verify.
Solong Tattoo E97 currently has the closer data-fit estimate. Treat this as a research signal and still compare weight, stroke, seller records, and issue coverage.
No. It is a structured data comparison unless an individual machine is explicitly marked as hands-on tested.
Issue signals are public-source research signals, not verified defect rates. Use them as prompts for deeper source checking.