Fenix TK11R vs Fenix TK17 size comparison
The Fenix TK17 is 3 mm (0.12 in) longer than the Fenix TK11R, and 2 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Fenix TK17 is 3 mm (0.12 in) longer than the Fenix TK11R, and 2 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Fenix TK11R Check price ↗ | Fenix TK17 Check price ↗ | |
| Length | 145.5 mm (5.73 in) | 148.5 mm (5.85 in)+3 mm |
| Head / width | 34 mm (1.34 in) | 36 mm (1.42 in)+2 mm |
| Body | 23.5 mm (0.93 in) | 25.4 mm (1.00 in)+1.9 mm |
| Weight | 117.5 g without battery | 197.2 g with battery |
| Battery | 18650 / 2x CR123A | One included 6000mAh rechargeable li-ion |
| Max output | 1,600 lm | 3,600 lm |
| Throw | 420 m | 330 m |
| Type | Tactical | Tactical |
| Price | $86.95 at fenixlighting.com, as of Nov 4, 2026 | $104.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | fenixlighting.com sourced |
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TK11R vs TK17: how they differ
Size and weight
The Fenix TK11R is the shorter light: 145.5 mm (5.73 in) against 148.5 mm (5.85 in), a difference of 3 mm (2%). At its widest point the Fenix TK11R is 2 mm slimmer (34 vs 36 mm). Weights are published on different bases (Fenix TK11R: 117.5 g without battery; Fenix TK17: 197.2 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix TK17 is rated brighter: 3,600 lm maximum vs 1,600 lm for the Fenix TK11R, 125% more. For beam distance the Fenix TK11R reaches further: 420 m vs 330 m rated throw (27% more).
Battery
The Fenix TK11R runs on removable 18650 / 2x CR123A batteries; the Fenix TK17 runs on its own battery (One included 6000mAh rechargeable li-ion).
Price
When we checked on Nov 4, 2026, the Fenix TK11R was $86.95 at fenixlighting.com and the Fenix TK17 $104.95 at fenixlighting.com, so the Fenix TK11R cost $18.00 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 mm shorter), a slimmer profile (2 mm narrower) and longer throw (420 m vs 330 m). Choose the Fenix TK17 if you want more output (3,600 lm vs 1,600 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix TK11R Check price ↗ Fenix TK17
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TK11R vs TK17 FAQ
Which is smaller, the Fenix TK11R or the Fenix TK17?
The Fenix TK11R is the shorter light: 145.5 mm (5.73 in) against 148.5 mm (5.85 in), a difference of 3 mm (2%). At its widest point the Fenix TK11R is 2 mm slimmer (34 vs 36 mm). Weights are published on different bases (Fenix TK11R: 117.5 g without battery; Fenix TK17: 197.2 g with battery), so they are not directly comparable.
Which is brighter, the Fenix TK11R or the Fenix TK17?
The Fenix TK17 is rated brighter: 3,600 lm maximum vs 1,600 lm for the Fenix TK11R, 125% more. For beam distance the Fenix TK11R reaches further: 420 m vs 330 m rated throw (27% more).
Which is cheaper, the Fenix TK11R or the Fenix TK17?
When we checked on Nov 4, 2026, the Fenix TK11R was $86.95 at fenixlighting.com and the Fenix TK17 $104.95 at fenixlighting.com, so the Fenix TK11R cost $18.00 less. Prices change often, so check the current price before you buy.
Do the Fenix TK11R and Fenix TK17 use the same battery?
The Fenix TK11R runs on removable 18650 / 2x CR123A batteries; the Fenix TK17 runs on its own battery (One included 6000mAh rechargeable li-ion).
Compare Fenix TK11R with similar lights
Compare Fenix TK17 with similar lights
More
Sources
- Fenix TK11R: specs from Fenix product page (manufacturer). Price $86.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Fenix TK17: specs from Fenix product page (manufacturer). Price $104.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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