Fenix TK11R vs Fenix TK15R size comparison

TK11R vs TK15R: how they differ

Size and weight

The Fenix TK11R is the shorter light: 145.5 mm (5.73 in) against 149 mm (5.87 in), a difference of 3.5 mm (2%). At their widest points they are about the same (34 vs 34 mm). Weights are published on different bases (Fenix TK11R: 117.5 g without battery; Fenix TK15R: 205.5 g with battery), so they are not directly comparable.

Brightness and throw

The Fenix TK15R is rated brighter: 3,200 lm maximum vs 1,600 lm for the Fenix TK11R, 100% more. For beam distance the Fenix TK15R reaches further: 490 m vs 420 m rated throw (17% more).

Battery

The Fenix TK11R runs on removable 18650 / 2x CR123A batteries; the Fenix TK15R runs on a removable 21700 battery. For scale, a 18650 cell is about 18 × 65 mm and a 21700 about 21 × 70 mm (nominal).

Price

When we checked on Nov 4, 2026, the Fenix TK11R was $86.95 at fenixlighting.com and the Fenix TK15R $119.95 at fenixlighting.com, so the Fenix TK11R cost $33.00 less. Prices change often, so check the current price before you buy.

Type

Both are tactical lights in our catalog with a tube body.

Which should you buy?

Choose the Fenix TK11R if you want a shorter light (3.5 mm shorter). Choose the Fenix TK15R if you want more output (3,200 lm vs 1,600 lm) and longer throw (490 m vs 420 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.

Check price ↗ Fenix TK11R Check price ↗ Fenix TK15R

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