Comparison Console
Fenix TK21R vs Olight Odin S
EDC Flashlights comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Olight Odin S stands out as the lightest option for weight, with about a 13% gap from the closest alternative. Fenix TK21R stands out as the cheapest option for retail price, with about a 13% gap from the closest alternative. Fenix TK21R stands out as the highest output option for max lumens, with about a 140% gap from the closest alternative.
Decision Signals
What stands out
Fenix TK21R stands out as the cheapest option for retail price, with about a 13% gap from the closest alternative.
Olight Odin S stands out as the most expensive option for retail price, with about a 15% gap from the closest alternative.
Olight Odin S stands out as the lightest option for weight, with about a 13% gap from the closest alternative.
Fenix TK21R stands out as the heaviest option for weight, with about a 15% gap from the closest alternative.
Olight Odin S stands out as the lowest output option for max lumens, with about a 58% gap from the closest alternative.
Fenix TK21R stands out as the highest output option for max lumens, with about a 140% gap from the closest alternative.
Olight Odin S stands out as the shortest runtime option for max runtime, with about a 89% gap from the closest alternative.
Fenix TK21R stands out as the longest runtime option for max runtime, with about a 826% 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$130.43Cheapest
US$149.99Most expensive
Weight
221.4 g (7.81 oz)Heaviest
193 g (6.81 oz)Lightest
Length
153.3 mm (6.04 in)Longest
127.5 mm (5.02 in)Shortest
Output
Max lumens
3600 lmHighest output
1500 lmLowest output
Max candela
Unknown
15600 cd
Beam distance
480 m (1575 ft)Highest
250 m (820 ft)Lowest
Max runtime
4350 minLongest runtime
470 minShortest runtime
Power & durability
Battery type
21700 lithium-ion
1x 18650 rechargeable Li-ion battery or 2x CR123A batteries
Charging type
USB Type-C
Magnetic charging cable (MCC)
Rechargeable
Yes
Yes
IP rating
IP68
IPX8
Impact resistance
1.5 m (5 ft)
Unknown
Material
Aluminum alloy A6061-T6
Aluminum alloy
Use case profile
Best for
Tactical usePatrollingSearch and rescueTraffic inspectionSelf-defense
Tactical useWeapon mountingSelf-defenseLaw enforcement
Common praise
Very bright with strong beamSolid build qualityIP68 waterproof ratingLong runtimeFast USB-C chargingComfortable size for tactical useImproved tactile switch feel
High brightness and long beam distanceVersatile power options with rechargeable batteryStable and secure mounting with M-LOK or Picatinny mountsCustomizable strobe functionReliable magnetic remote switch
Common complaints
Larger size compared to some EDC flashlightsNo detailed mode descriptions available
Relatively heavy for a handheld flashlight at 193 gramsMainly suited for weapon mounting rather than general pocket carrySome users report run time limitations on high modes
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