Master Guide to Flip Knife Doppler Phase 4 Max Blue & BTA Blue Patterns

The blade of the knife is painted with metallic paints and adorned with a pattern of translucent wavy lines resembling smoke. The color scheme of the skin includes various shades of blue, brown and black creating gradient transitions. The handle remains unpainted.
The pattern index affects the ratio of colors as well as the location of blue, brown and black areas. Pattern variations with a predominance of blue on the play side of the blade are titled "BTA Blue". Knives with only blue color on the blade resemble Flip Knife | Doppler Sapphire and are titled Max Blue.
This guide focuses on the Play Side. The rare pattern features the maximum amount of blue at the tip of the knife, creating stunning visual appeal that resembles Sapphire patterns.
47 patterns - Best Max Blue patterns

Tier 1 patterns represent the premium Max Blue variations with exceptional blue coverage and minimal brown/black areas. These patterns offer the closest resemblance to Sapphire and are highly sought after by collectors.
53 patterns - High-quality blue patterns

Tier 2 patterns offer excellent Max Blue characteristics with strong blue coverage and good visual appeal. These patterns provide great value for collectors seeking high-quality Phase 4 patterns.
56 patterns - Solid blue patterns

Tier 3 patterns provide solid Max Blue characteristics with good blue coverage and reasonable visual appeal. These patterns offer good value for Phase 4 collectors seeking quality patterns at competitive prices.
58 patterns - Affordable blue options

Tier 4 patterns provide entry-level access to Max Blue characteristics at the most affordable prices while still maintaining good blue coverage and Phase 4 classification.
35 patterns - Additional Max Blue options
These patterns come after Tier 4 and are also Max Blue patterns. They provide entry-level access to Max Blue characteristics at competitive prices while maintaining BTA Blue status.
Float Value of the skin ranges from 0.00 to 0.08, which makes Flip Knife | Doppler Phase 4 available only in Factory New and Minimal Wear condition. At levels of wear close to the maximum, the knife has noticeable abrasions on the corner of the blade close to the handle.
Pristine condition with no visible wear, showcasing the Max Blue pattern in its full glory.
Slight wear on the corner near the handle, but blue pattern remains clearly visible.
Max Blue patterns feature predominantly blue coloring with minimal brown and black areas for maximum visual impact.
Knives with only blue color resemble Sapphire patterns and are titled Max Blue for their exceptional appearance.
The rare pattern features maximum blue at the tip of the knife, creating stunning visual appeal.
Phase 4 is only available in Factory New and Minimal Wear conditions due to float range limitations.
BTA Blue patterns with predominance of blue are highly valued by collectors and traders.
Browse available Flip Knife Doppler Phase 4 skins and find your Max Blue pattern
Browse Flip Knife Doppler