Acebeam H16 vs Fenix HM65R size comparison
The Fenix HM65R is 1.5 mm (0.06 in) shorter than the Acebeam H16, and 21 mm wider at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
The Fenix HM65R is 1.5 mm (0.06 in) shorter than the Acebeam H16, and 21 mm wider at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
Dimensions
| Acebeam H16 Check price ↗ | Fenix HM65R Check price ↗ | |
| Length | 82 mm (3.23 in) | 80.5 mm (3.17 in)−1.5 mm |
| Head / width | 19 mm (0.75 in) | 40 mm (1.57 in)+21 mm |
| Body | 18 mm (0.71 in) | — |
| Thickness | — | 55 mm (2.17 in) |
| Weight | 71 g listed | 97 g without battery |
| Battery | 14500 | 18650 / 2x CR123A |
| Max output | 900 lm | 1,400 lm |
| Throw | 104 m | 163 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $39.95 at batteryjunction.com, as of Nov 4, 2026 | $89.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | fenixlighting.com sourced Headlamp unit; front view drawn width x height |
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H16 vs HM65R: how they differ
Size and weight
The Fenix HM65R is the shorter light: 80.5 mm (3.17 in) against 82 mm (3.23 in), a difference of 1.5 mm (2%). At its widest point the Acebeam H16 is 21 mm slimmer (19 vs 40 mm). Weights are published on different bases (Acebeam H16: 71 g listed; Fenix HM65R: 97 g without battery), so they are not directly comparable.
Brightness and throw
The Fenix HM65R is rated brighter: 1,400 lm maximum vs 900 lm for the Acebeam H16, 56% more. For beam distance the Fenix HM65R reaches further: 163 m vs 104 m rated throw (57% more).
Battery
The Acebeam H16 runs on a removable 14500 battery; the Fenix HM65R runs on removable 18650 / 2x CR123A batteries. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Price
When we checked on Nov 4, 2026, the Acebeam H16 was $39.95 at batteryjunction.com and the Fenix HM65R $89.95 at fenixlighting.com, so the Acebeam H16 cost $50.00 less. Prices change often, so check the current price before you buy.
Type
Both are headlamps / right-angle lights in our catalog.
Which should you buy?
Choose the Acebeam H16 if you want a slimmer profile (21 mm narrower). Choose the Fenix HM65R if you want more output (1,400 lm vs 900 lm) and longer throw (163 m vs 104 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Acebeam H16 Check price ↗ Fenix HM65R
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H16 vs HM65R FAQ
Which is smaller, the Acebeam H16 or the Fenix HM65R?
The Fenix HM65R is the shorter light: 80.5 mm (3.17 in) against 82 mm (3.23 in), a difference of 1.5 mm (2%). At its widest point the Acebeam H16 is 21 mm slimmer (19 vs 40 mm). Weights are published on different bases (Acebeam H16: 71 g listed; Fenix HM65R: 97 g without battery), so they are not directly comparable.
Which is brighter, the Acebeam H16 or the Fenix HM65R?
The Fenix HM65R is rated brighter: 1,400 lm maximum vs 900 lm for the Acebeam H16, 56% more. For beam distance the Fenix HM65R reaches further: 163 m vs 104 m rated throw (57% more).
Which is cheaper, the Acebeam H16 or the Fenix HM65R?
When we checked on Nov 4, 2026, the Acebeam H16 was $39.95 at batteryjunction.com and the Fenix HM65R $89.95 at fenixlighting.com, so the Acebeam H16 cost $50.00 less. Prices change often, so check the current price before you buy.
Do the Acebeam H16 and Fenix HM65R use the same battery?
The Acebeam H16 runs on a removable 14500 battery; the Fenix HM65R runs on removable 18650 / 2x CR123A batteries. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Compare Acebeam H16 with similar lights
Compare Fenix HM65R with similar lights
More
Sources
- Acebeam H16: specs from manufacturer published specs as listed by batteryjunction.com. Price $39.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Fenix HM65R: specs from Fenix product page (manufacturer). Price $89.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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