Comparison Console
Fenix PD25 vs Olight Diffuse
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Fenix PD25 stands out as the lightest option for weight, with about a 18% gap from the closest alternative. Olight Diffuse stands out as the cheapest option for retail price, with about a 56% gap from the closest alternative. Olight Diffuse stands out as the highest output option for max lumens, with about a 27% gap from the closest alternative.
Decision Signals
What stands out
Olight Diffuse stands out as the cheapest option for retail price, with about a 56% gap from the closest alternative.
Fenix PD25 stands out as the most expensive option for retail price, with about a 127% gap from the closest alternative.
Fenix PD25 stands out as the lightest option for weight, with about a 18% gap from the closest alternative.
Olight Diffuse stands out as the heaviest option for weight, with about a 22% gap from the closest alternative.
Fenix PD25 stands out as the lowest output option for max lumens, with about a 21% gap from the closest alternative.
Olight Diffuse stands out as the highest output option for max lumens, with about a 27% gap from the closest alternative.
Fenix PD25 stands out as the shortest runtime option for max runtime, with about a 71% gap from the closest alternative.
Olight Diffuse stands out as the longest runtime option for max runtime, with about a 240% 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$75Most expensive
US$32.99Cheapest
Weight
47 g (1.66 oz)Lightest
57.5 g (2.03 oz)Heaviest
Length
93 mm (3.66 in)Longest
87 mm (3.43 in)Shortest
Output
Max lumens
550 lmLowest output
700 lmHighest output
Max candela
4225 cdHighest candela
1700 cdLowest candela
Beam distance
130 m (427 ft)Highest
80 m (262 ft)Lowest
Max runtime
3180 minShortest runtime
10800 minLongest runtime
Power & durability
Battery type
One 16340 rechargeable Li-ion or 3V CR123A Lithium battery
14500 lithium-ion (also compatible with AA primary or NiMH)
Charging type
USB rechargeable (ARB-L16-700U included)
USB-C charging via battery
Rechargeable
Yes
Yes
IP rating
IPX8 (waterproof to 2 meters)
IPX8
Impact resistance
1 m (3 ft)
Unknown
Material
Aircraft-grade aluminum with Type III hard-anodized anti-abrasion finish
Unknown
Use case profile
Best for
EDCOutdoor useTactical applications
EDC useTool kit or toolbox lightUsers needing anti-roll shapeUsers wanting waterproof light
Common praise
Compact size yet powerful outputDurable aircraft-grade aluminum constructionGood battery options with included rechargeable 16340 cellDual-switch design with momentary-on tail switchWaterproof to 2 meters IPX8 ratingLong runtime on lowest setting
Good waterproof rating (IPX8)Anti-roll pentagon shapeGood output and runtimeConvenient battery with onboard USB-C chargingNice e-switch with indicator and lockout
Common complaints
Relatively large size for a 16340 battery lightMode memory can be confusing if last mode was strobe
No knurling makes grip less secureTailcap is small and fiddly to unscrewNo built-in charging in flashlight (battery charges externally)Limited documentation on AA battery mode