Comparison Console
Nitecore NU31 vs Sofirn D25LR
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Sofirn D25LR stands out as the lightest option for weight, with about a 16% gap from the closest alternative. Sofirn D25LR stands out as the cheapest option for retail price, with about a 45% gap from the closest alternative. Sofirn D25LR stands out as the highest output option for max lumens, with about a 7% gap from the closest alternative.
Decision Signals
What stands out
Sofirn D25LR stands out as the cheapest option for retail price, with about a 45% gap from the closest alternative.
Nitecore NU31 stands out as the most expensive option for retail price, with about a 82% gap from the closest alternative.
Sofirn D25LR stands out as the lightest option for weight, with about a 16% gap from the closest alternative.
Nitecore NU31 stands out as the heaviest option for weight, with about a 19% gap from the closest alternative.
Nitecore NU31 stands out as the lowest output option for max lumens, with about a 7% gap from the closest alternative.
Sofirn D25LR stands out as the highest output option for max lumens, with about a 7% gap from the closest alternative.
Sofirn D25LR stands out as the shortest runtime option for max runtime, with about a 97% gap from the closest alternative.
Nitecore NU31 stands out as the longest runtime option for max runtime, with about a 3735% 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$39.95Most expensive
US$22Cheapest
Weight
95.5 g (3.37 oz)Heaviest
80 g (2.82 oz)Lightest
Length
62.3 mm (2.45 in)Shortest
86 mm (3.39 in)Longest
Output
Max lumens
550 lmLowest output
590 lmHighest output
Max candela
5800 cdHighest candela
700 cdLowest candela
Beam distance
145 m (476 ft)Highest
53 m (174 ft)Lowest
Max runtime
8820 minLongest runtime
230 minShortest runtime
Power & durability
Battery type
Built-in 1800mAh Li-ion battery
18650 Li-ion
Charging type
USB-C charging port (5V
1A)
Micro USB
Rechargeable
Yes
Yes
IP rating
IP66
IPX6
Impact resistance
1 m (3 ft)
Unknown
Material
Aluminum alloy front housing with durable PC material body
Aluminium
Use case profile
Best for
Outdoor activitiesCampingHikingNight trekkingSkywatching
Outdoor activitiesBudget-conscious usersLight paintingStargazingHunting
Common praise
Lightweight and compact at 95.5gVersatile lighting modes including white, red, and high CRI auxiliary white lightLong battery runtime up to 147 hoursGood waterproof rating (IP66) and 1 meter impact resistanceUSB-C fast charging with short recharge timeSimple dual-button interface for easy operationReflective headband for safety
High CRI white light with good color renderingDeep 660nm red LED preserving night visionAffordable priceGood runtime with low voltage protectionSimple and effective user interfaceComfortable headband without top strap
Common complaints
Charging time varies between 1.5 to 3 hours depending on sourceSlight green tint on white LED reportedCannot replace internal rechargeable battery
Build quality is decent but not robust enough for rough conditionsSlight green tint in white LED noted by some usersUnregulated output with step down after short time on highHeavier than ideal for runningThreads need lubrication for smooth battery insertion
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