Fenix HM53R vs ThruNite TH20 Pro size comparison
The ThruNite TH20 Pro is 9 mm (0.35 in) longer than the Fenix HM53R, and 14 mm narrower at its widest point. Weights are published on different bases (listed vs with battery and headband), so compare them with care.
The ThruNite TH20 Pro is 9 mm (0.35 in) longer than the Fenix HM53R, and 14 mm narrower at its widest point. Weights are published on different bases (listed vs with battery and headband), so compare them with care.
Dimensions
| Fenix HM53R Check price ↗ | ThruNite TH20 Pro Check price ↗ | |
| Length | 71 mm (2.80 in) | 80 mm (3.15 in)+9 mm |
| Head / width | 36 mm (1.42 in) | 22 mm (0.87 in)−14 mm |
| Body | — | 20 mm (0.79 in) |
| Thickness | 37 mm (1.46 in) | — |
| Weight | 102 g with battery and headband | 58 g listed |
| Battery | 18350 | 14500 |
| Max output | 1,200 lm | 1,010 lm |
| Throw | 158 m | 141 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $69.95 at fenixlighting.com, as of Nov 4, 2026 | not verified yet |
| Source | fenixlighting.com sourced Headlamp unit; front view drawn width x height | batteryjunction.com sourced |
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HM53R vs TH20 Pro: how they differ
Size and weight
The Fenix HM53R is the shorter light: 71 mm (2.80 in) against 80 mm (3.15 in), a difference of 9 mm (11%). At its widest point the ThruNite TH20 Pro is 14 mm slimmer (22 vs 36 mm). Weights are published on different bases (Fenix HM53R: 102 g with battery and headband; ThruNite TH20 Pro: 58 g listed), so they are not directly comparable.
Brightness and throw
The Fenix HM53R is rated brighter: 1,200 lm maximum vs 1,010 lm for the ThruNite TH20 Pro, 19% more. For beam distance the Fenix HM53R reaches further: 158 m vs 141 m rated throw (12% more).
Battery
The Fenix HM53R runs on a removable 18350 battery; the ThruNite TH20 Pro runs on a removable 14500 battery. For scale, a 18350 cell is about 18 × 35 mm and a 14500 about 14 × 50 mm (nominal).
Type
Both are headlamps / right-angle lights in our catalog.
Which should you buy?
Choose the Fenix HM53R if you want a shorter light (9 mm shorter), more output (1,200 lm vs 1,010 lm) and longer throw (158 m vs 141 m). Choose the ThruNite TH20 Pro if you want a slimmer profile (14 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix HM53R Check price ↗ ThruNite TH20 Pro
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HM53R vs TH20 Pro FAQ
Which is smaller, the Fenix HM53R or the ThruNite TH20 Pro?
The Fenix HM53R is the shorter light: 71 mm (2.80 in) against 80 mm (3.15 in), a difference of 9 mm (11%). At its widest point the ThruNite TH20 Pro is 14 mm slimmer (22 vs 36 mm). Weights are published on different bases (Fenix HM53R: 102 g with battery and headband; ThruNite TH20 Pro: 58 g listed), so they are not directly comparable.
Which is brighter, the Fenix HM53R or the ThruNite TH20 Pro?
The Fenix HM53R is rated brighter: 1,200 lm maximum vs 1,010 lm for the ThruNite TH20 Pro, 19% more. For beam distance the Fenix HM53R reaches further: 158 m vs 141 m rated throw (12% more).
Do the Fenix HM53R and ThruNite TH20 Pro use the same battery?
The Fenix HM53R runs on a removable 18350 battery; the ThruNite TH20 Pro runs on a removable 14500 battery. For scale, a 18350 cell is about 18 × 35 mm and a 14500 about 14 × 50 mm (nominal).
Compare Fenix HM53R with similar lights
Compare ThruNite TH20 Pro with similar lights
More
Sources
- Fenix HM53R: specs from Fenix product page (manufacturer). Price $69.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- ThruNite TH20 Pro: specs from manufacturer published specs as listed by batteryjunction.com. No verified price yet.
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