Comparison Console
Sofirn SK31 vs ThruNite Catapult V6 SST70
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
ThruNite Catapult V6 SST70 stands out as the lightest option for weight, with about a 9% gap from the closest alternative. Sofirn SK31 stands out as the cheapest option for retail price, with about a 24% gap from the closest alternative. Sofirn SK31 stands out as the highest output option for max lumens, with about a 140% gap from the closest alternative.
Decision Signals
What stands out
Sofirn SK31 stands out as the cheapest option for retail price, with about a 24% gap from the closest alternative.
ThruNite Catapult V6 SST70 stands out as the most expensive option for retail price, with about a 32% gap from the closest alternative.
ThruNite Catapult V6 SST70 stands out as the lightest option for weight, with about a 9% gap from the closest alternative.
Sofirn SK31 stands out as the heaviest option for weight, with about a 10% gap from the closest alternative.
ThruNite Catapult V6 SST70 stands out as the lowest output option for max lumens, with about a 58% gap from the closest alternative.
Sofirn SK31 stands out as the highest output option for max lumens, with about a 140% gap from the closest alternative.
ThruNite Catapult V6 SST70 stands out as the shortest runtime option for max runtime, with about a 66% gap from the closest alternative.
Sofirn SK31 stands out as the longest runtime option for max runtime, with about a 198% 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$52.99Cheapest
US$69.95Most expensive
Weight
223.3 g (7.88 oz)Heaviest
203 g (7.16 oz)Lightest
Length
156.1 mm (6.15 in)Longest
138 mm (5.43 in)Shortest
Output
Max lumens
6800 lmHighest output
2836 lmLowest output
Max candela
Unknown
120000 cd
Beam distance
395 m (1296 ft)Lowest
692 m (2270 ft)Highest
Max runtime
30000 minLongest runtime
10080 minShortest runtime
Power & durability
Battery type
21700 Li-ion rechargeable
26650 Li-ion 5000 mAh
Charging type
USB-C 5V 3A, approx. 3 hours charging time
USB-C (2A included cable)
Rechargeable
Yes
Yes
IP rating
IPX8
IPX8
Impact resistance
Unknown
1.5 m (5 ft)
Material
Aluminum alloy body, stainless steel bezel with tungsten spheres
Aerospace grade aluminum
Use case profile
Best for
Tactical useOutdoor useSearch and rescueLaw enforcementEDCHome defensePatrol duty
Long-range illuminationHuntingRescue operationsSearchingEmergency response
Common praise
High max output of 6800 lumensLong beam distance (395 meters)Robust aluminum body with stainless steel bezel and tungsten spheres for glass breakingEfficient LHP73B LED emitter with clean tintTriple-switch interface allowing intuitive controlExcellent water resistance with screwable aluminum USB-C coverLong runtime up to 500 hours on low modeIncluded rechargeable 21700 batteryBattery indicator for charge level
Excellent long throw and balanced beamHigh output with versatile modesDurable and reliable build qualityConvenient USB-C chargingComes with holster and lanyard for carry
Common complaints
Lockout switch placement can be awkwardLockout switch sometimes malfunctions causing failure to turn on (resolvable by toggling lockout)Included battery has lower continuous discharge rating (CDR) than recommended for max turbo output
No pocket clip due to sizeSwitch can feel cheap or have some travel/rockingUSB-C charging requires A to C cable; USB-C to C or PD unsupported
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