Comparison Console
Kershaw Atmos vs Spyderco Efficient
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Kershaw Atmos stands out as the lightest option for weight, with about a 53% gap from the closest alternative. Kershaw Atmos stands out as the cheapest option for retail price, with about a 3% gap from the closest alternative.
Decision Signals
What stands out
Kershaw Atmos stands out as the cheapest option for retail price, with about a 3% gap from the closest alternative.
Spyderco Efficient stands out as the most expensive option for retail price, with about a 3% gap from the closest alternative.
Kershaw Atmos stands out as the lightest option for weight, with about a 53% gap from the closest alternative.
Spyderco Efficient stands out as the heaviest option for weight, with about a 115% gap from the closest alternative.
Kershaw Atmos stands out as the shortest option for closed length, with about a 2% gap from the closest alternative.
Spyderco Efficient stands out as the longest option for closed length, with about a 2% gap from the closest alternative.
Kershaw Atmos stands out as the shortest option for overall length, with about a 3% gap from the closest alternative.
Spyderco Efficient stands out as the longest option for overall length, with about a 3% 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$63Cheapest
US$65Most expensive
Weight
54 g (1.90 oz)Lightest
116 g (4.09 oz)Heaviest
Dimensions
Blade length
76 mm (2.99 in)
76 mm (2.99 in)
Overall length
175 mm (6.89 in)Shortest
180 mm (7.09 in)Longest
Closed length
102 mm (4.02 in)Shortest
104 mm (4.09 in)Longest
Blade thickness
2.6 mm (0.10 in)Thinnest
3 mm (0.12 in)Thickest
Materials & mechanism
Blade steel
8Cr13MoV
8Cr13MoV Stainless Steel
Handle material
G10 with carbon fiber overlay
G-10 Laminate
Finish
Satin blade finish
Satin or Black oxide coated blade
Lock type
Inset liner lock
Liner Lock
Opening method
Manual KVT ball-bearing flipper
Spyderco Trademark Round Hole for one-handed opening
Clip type
Reversible deep-carry (right/left, tip-up)
Reversible hourglass clip, ambidextrous tip-up carry
Use case profile
Best for
Everyday carryLightweight pocketknifeOffice or urban useTactical lightweight backup blade
Everyday carryTactical useValue-oriented users
Not best for
Heavy duty outdoor use without reinforcementHigh-end premium knife buyers
Unknown
Common praise
LightweightSmooth manual flipper openingComfortable G10 handle with chamfered carbon fiber edgesAffordable pricing for an enthusiast-friendly designReversible deep-carry pocket clipClean practical design
Good value for the priceSolid build quality for a budget bladeComfortable ergonomic handleEffective and secure liner lock mechanismReversible clip for versatile carry options
Common complaints
Initial production model had detent issues requiring warranty repair8Cr13MoV is an entry-level steel with moderate edge retentionNot suitable for heavy duty tactical or outdoor use
Blade steel is lower-end (8Cr13MoV) compared to high-end knives
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