Comparison Console
CIVIVI Biophase vs CRKT M21-04G
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
CIVIVI Biophase stands out as the lightest option for weight, with about a 58% gap from the closest alternative. CIVIVI Biophase stands out as the cheapest option for retail price, with about a 4% gap from the closest alternative.
Decision Signals
What stands out
CIVIVI Biophase stands out as the cheapest option for retail price, with about a 4% gap from the closest alternative.
CRKT M21-04G stands out as the most expensive option for retail price, with about a 4% gap from the closest alternative.
CIVIVI Biophase stands out as the lightest option for weight, with about a 58% gap from the closest alternative.
CRKT M21-04G stands out as the heaviest option for weight, with about a 141% gap from the closest alternative.
CIVIVI Biophase stands out as the shortest option for closed length, with about a 13% gap from the closest alternative.
CRKT M21-04G stands out as the longest option for closed length, with about a 14% gap from the closest alternative.
CIVIVI Biophase stands out as the shortest option for blade length, with about a 12% gap from the closest alternative.
CRKT M21-04G stands out as the longest option for blade length, with about a 14% gap from the closest alternative.
Specification Profile
Relative dimensions at a glance
Each axis is normalized against the largest raw value among the products in this comparison. Farther outward means a larger value, not necessarily a better result. Axes with an unverified value are omitted.
Price & carry
Retail price
US$79.9Cheapest
US$83Most expensive
Weight
75.4 g (2.66 oz)Lightest
181.44 g (6.40 oz)Heaviest
Dimensions
Blade length
88.5 mm (3.48 in)Shortest
101.02 mm (3.98 in)Longest
Overall length
207 mm (8.15 in)Shortest
236.55 mm (9.31 in)Longest
Closed length
118.5 mm (4.67 in)Shortest
135.53 mm (5.34 in)Longest
Blade thickness
3 mm (0.12 in)Thinnest
3.53 mm (0.14 in)Thickest
Materials & mechanism
Blade steel
Nitro-V stainless steel
1.4116 stainless steel
Handle material
Aluminum and coarse burgundy G-10 (standard version); Aluminum & carbon fiber overlay on black G-10 (Damascus version)
G-10 Laminate
Finish
Dual satin and black stonewash (standard version); Black stonewashed, satin flat (manufacturer)
Corrosion resistant coating
Lock type
Button lock
Liner Lock
Opening method
Flipper
Flipper
Clip type
Ambidextrous tip-up pocket clip
Unknown
Use case profile
Best for
Everyday carryEDCLightweightCompactOutdoor usePrecision cutting tasks
Everyday carryTactical useOutdoor tasks
Not best for
Unknown
Unknown
Common praise
LightweightSmooth operation due to caged ceramic ball bearing pivotDurable corrosion-resistant Nitro-V bladeAmbidextrous tip-up pocket clipErgonomic and secure handle grip
Exceptional grip due to G10 handleFast and safe opening with flipper and liner lockHigh quality construction at a reasonable price
Common complaints
Unknown
Unknown
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