Tattoo gear comparisonFK One Adjust vs Flux Max 4.0
FK's adjustable-stroke all-rounder faces its display-equipped wireless flagship in a flexibility-versus-controls matchup.
CURRENT VERDICTFK Irons FK One Adjust
Choose One Adjust when stroke range and one-machine versatility matter most. Choose Flux Max when onboard digital control, Bluetooth, eGive, and the PowerBolt ecosystem are the priority.
WINNERFK Irons
FK One Adjust
$799.99
- Adjustable 2.0-5.0 mm in 0.5 mm increments
- 249 g / 8.8 oz
- Up to 12 hours combined battery runtime
- Overall score: 93
- Best for: Artists who want one wireless FK platform with broad mechanical stroke adjustment for lining, shading, and packing
FK Irons
Flux Max 4.0
$799.99
- 3.0 mm or 4.0 mm fixed
- 206 g / 7.2 oz
- Up to 6 hours
- Overall score: 88
- Best for: Professional artists who want a feature-rich wireless pen with strong control over power and give
