Comparison Console
Acebeam W20 vs SureFire X400 Ultra
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Acebeam W20 stands out as the lightest option for weight, with about a 8% gap from the closest alternative. Acebeam W20 stands out as the cheapest option for retail price, with about a 76% gap from the closest alternative. SureFire X400 Ultra stands out as the highest output option for max lumens, with about a 67% gap from the closest alternative.
Decision Signals
What stands out
Acebeam W20 stands out as the cheapest option for retail price, with about a 76% gap from the closest alternative.
SureFire X400 Ultra stands out as the most expensive option for retail price, with about a 321% gap from the closest alternative.
Acebeam W20 stands out as the lightest option for weight, with about a 8% gap from the closest alternative.
SureFire X400 Ultra stands out as the heaviest option for weight, with about a 9% gap from the closest alternative.
Acebeam W20 stands out as the lowest output option for max lumens, with about a 40% gap from the closest alternative.
SureFire X400 Ultra stands out as the highest output option for max lumens, with about a 67% gap from the closest alternative.
SureFire X400 Ultra stands out as the shortest runtime option for max runtime, with about a 6% gap from the closest alternative.
Acebeam W20 stands out as the longest runtime option for max runtime, with about a 7% 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$189.9Cheapest
US$799Most expensive
Weight
130.6 g (4.61 oz)Lightest
142 g (5.01 oz)Heaviest
Length
115.1 mm (4.53 in)Longest
94 mm (3.70 in)Shortest
Output
Max lumens
600 lmLowest output
1000 lmHighest output
Max candela
302500 cdHighest candela
11300 cdLowest candela
Beam distance
1100 m (3609 ft)Highest
213 m (699 ft)Lowest
Max runtime
80 minLongest runtime
75 minShortest runtime
Power & durability
Battery type
16340 rechargeable Li-ion (compatible with CR123 primary battery)
2 x CR123A
Charging type
USB-C (on battery)
Unknown
Rechargeable
Yes
Unknown
IP rating
IP68
IPX4
Impact resistance
1.5 m (5 ft)
Unknown
Material
Aerospace-grade AL6061-T6 aluminum with hard-anodized finish
Mil-Spec hard-anodized aerospace aluminum
Use case profile
Best for
Tactical useLong-range spottingClose-range illuminationOutdoor adventuresSearch and rescueEveryday carry
Weapon-mounted tactical illumination and aimingLaw enforcementMilitaryHome defenseSelf-defense applications
Common praise
Compact size with excellent long-range performance.Wide-angle spill solves close-range illumination issues common in LEP lights.Durable build with IP68 rating and good drop resistance.Intuitive dual-switch interface for fast operation.Rechargeable battery with USB-C charging on the cell.
High output 1000 lumens with smooth hybrid beam profileHighly visible laser (red or green) that rarely needs re-zeroingDurable Mil-Spec hard-anodized aluminum constructionAmbidextrous, intuitive switchingReliable zero retention and rugged design
Common complaints
Limited runtime at maximum output (20 seconds before step-down).Battery charging requires removing the cell due to USB-C port on battery itself.Some complexity in controlling modes due to dual-switch design.
High retail priceLaser brightness might not be intense enough for some usersActivation switch could feel less tactileSome bulkiness for concealed carry