Comparison Console
Nitecore NU33 vs Sofirn D25S
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Nitecore NU33 stands out as the lightest option for weight, with about a 22% gap from the closest alternative. Sofirn D25S stands out as the cheapest option for retail price, with about a 62% gap from the closest alternative. Sofirn D25S stands out as the highest output option for max lumens, with about a 71% gap from the closest alternative.
Decision Signals
What stands out
Sofirn D25S stands out as the cheapest option for retail price, with about a 62% gap from the closest alternative.
Nitecore NU33 stands out as the most expensive option for retail price, with about a 163% gap from the closest alternative.
Nitecore NU33 stands out as the lightest option for weight, with about a 22% gap from the closest alternative.
Sofirn D25S stands out as the heaviest option for weight, with about a 28% gap from the closest alternative.
Nitecore NU33 stands out as the lowest output option for max lumens, with about a 42% gap from the closest alternative.
Sofirn D25S stands out as the highest output option for max lumens, with about a 71% gap from the closest alternative.
Nitecore NU33 stands out as the shortest option for length, with about a 27% gap from the closest alternative.
Sofirn D25S stands out as the longest option for length, with about a 38% 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$49.95Most expensive
US$19Cheapest
Weight
95.5 g (3.37 oz)Lightest
122 g (4.30 oz)Heaviest
Length
62.3 mm (2.45 in)Shortest
85.8 mm (3.38 in)Longest
Output
Max lumens
700 lmLowest output
1200 lmHighest output
Max candela
4578 cdHighest candela
700 cdLowest candela
Beam distance
135 m (443 ft)Highest
53 m (174 ft)Lowest
Max runtime
8820 min
Unknown
Power & durability
Battery type
Built-in 2000mAh Li-ion battery
18650
Charging type
USB Type-C
USB Type-C
Rechargeable
Yes
Yes
IP rating
IP66
IPX6
Impact resistance
1 m (3 ft)
Unknown
Material
PC and aluminum metal materials
Aluminum Alloy
Use case profile
Best for
Night runningTrekkingHikingCampingOutdoor adventuresEmergency lighting
CampingRunningHikingGeneral outdoor activitiesHeadlamp useLight painting when removed from headband
Common praise
Compact and lightweight designMultiple lighting modes with high CRI optionLong maximum runtime of up to 147 hours on low modeUSB-C fast charging with approximately 1.5 hours charge timeComfortable to wear with adjustable headband and stable fitGood quality construction with durable materialsLockout mode prevents accidental activation
Affordable price for featuresGood beam quality with artifact-free hotspotSimple and effective user interfaceComfortable headband without top strapRechargeable with USB-C portFunctional red and white LEDsEffective thermal regulation and low voltage protection
Common complaints
Sealed non-user replaceable batteryRed mode lacks low output levelIP66 rating less than some higher-grade headlampsNo PWM in LED driver, but this is generally positiveLimited tilt adjustment (only downward about 75 degrees)
Build quality is described as sub-par with shallow unlubricated threadsSwitch placement on side instead of top may reduce ergonomicsSlightly heavy for runningNo pocket clip, magnet, or lanyard included for handheld use
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