Fenix PD36R PRO vs Fenix PD45R ACE size comparison

By · Updated · How we compare and rank

The Fenix PD45R ACE is 11.9 mm (0.47 in) longer than the Fenix PD36R PRO, and 3.5 mm wider at its widest point. It is 32 g heavier (with battery).

Fenix PD36R PRO · 145.8 mmFenix PD45R ACE · 157.7 mm

The Fenix PD45R ACE is 11.9 mm (0.47 in) longer than the Fenix PD36R PRO, and 3.5 mm wider at its widest point. It is 32 g heavier (with battery).

Dimensions

Fenix PD36R PRO
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Fenix PD45R ACE
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Length145.8 mm (5.74 in)157.7 mm (6.21 in)+11.9 mm
Head / width26.5 mm (1.04 in)30 mm (1.18 in)+3.5 mm
Body25.7 mm (1.01 in)25.9 mm (1.02 in)+0.2 mm
Weight169 g with battery200.5 g with battery+32 g
Battery2170021700
Max output2,800 lm3,200 lm
Throw380 m410 m
TypeEDCEDC
Price$119.95 at fenixlighting.com, as of Nov 4, 2026$129.95 at fenixlighting.com, as of Nov 4, 2026
Sourcefenixlighting.com sourcedfenixlighting.com sourced
Listed 30 mm wide x 25.9 mm high

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PD36R PRO vs PD45R ACE: how they differ

Size and weight

The Fenix PD36R PRO is the shorter light: 145.8 mm (5.74 in) against 157.7 mm (6.21 in), a difference of 11.9 mm (8%). At its widest point the Fenix PD36R PRO is 3.5 mm slimmer (26.5 vs 30 mm). The Fenix PD36R PRO is 32 g lighter (169 g vs 200.5 g, with battery).

Brightness and throw

The Fenix PD45R ACE is rated brighter: 3,200 lm maximum vs 2,800 lm for the Fenix PD36R PRO, 14% more. For beam distance the Fenix PD45R ACE reaches further: 410 m vs 380 m rated throw (8% more).

Battery

Both run on a removable 21700 battery, so spare cells work in either light.

Price

When we checked on Nov 4, 2026, the Fenix PD36R PRO was $119.95 at fenixlighting.com and the Fenix PD45R ACE $129.95 at fenixlighting.com, so the Fenix PD36R PRO cost $10.00 less. Prices change often, so check the current price before you buy.

Type

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

Which should you buy?

Choose the Fenix PD36R PRO if you want a shorter light (11.9 mm shorter), a slimmer profile (3.5 mm narrower) and less weight (32 g lighter). Choose the Fenix PD45R ACE if you want more output (3,200 lm vs 2,800 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.

Check price ↗ Fenix PD36R PRO Check price ↗ Fenix PD45R ACE

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PD36R PRO vs PD45R ACE FAQ

Which is smaller, the Fenix PD36R PRO or the Fenix PD45R ACE?

The Fenix PD36R PRO is the shorter light: 145.8 mm (5.74 in) against 157.7 mm (6.21 in), a difference of 11.9 mm (8%). At its widest point the Fenix PD36R PRO is 3.5 mm slimmer (26.5 vs 30 mm). The Fenix PD36R PRO is 32 g lighter (169 g vs 200.5 g, with battery).

Which is brighter, the Fenix PD36R PRO or the Fenix PD45R ACE?

The Fenix PD45R ACE is rated brighter: 3,200 lm maximum vs 2,800 lm for the Fenix PD36R PRO, 14% more. For beam distance the Fenix PD45R ACE reaches further: 410 m vs 380 m rated throw (8% more).

Which is cheaper, the Fenix PD36R PRO or the Fenix PD45R ACE?

When we checked on Nov 4, 2026, the Fenix PD36R PRO was $119.95 at fenixlighting.com and the Fenix PD45R ACE $129.95 at fenixlighting.com, so the Fenix PD36R PRO cost $10.00 less. Prices change often, so check the current price before you buy.

Do the Fenix PD36R PRO and Fenix PD45R ACE use the same battery?

Both run on a removable 21700 battery, so spare cells work in either light.

Compare Fenix PD36R PRO with similar lights

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Compare Fenix PD45R ACE with similar lights

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More

Fenix PD36R PRO size & specsFenix PD45R ACE size & specsAll Fenix lightsBest EDC flashlights

Sources

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