Upgrade Guide
Nikon D40X→Nikon D5100
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Strong upgrade
The D5100 improves across 4 key areas at a reasonable price gap. Most D40X owners will notice the difference.
What's new in the D5100
-
Resolution16MP vs 10MP (+6MP)
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Burst rate4fps vs 3fps
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Battery life~660 shots (CIPA) vs ~470 shots (CIPA)
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Generation4 years newer (2011 vs 2007)
Suitability by genre
Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.
| Genre | D40X | D5100 | |
|---|---|---|---|
| Portrait | +0.7 | ||
| Street | +0.3 | ||
| Travel | +0.3 | ||
| Wedding & Events | +0.7 | ||
| Documentary | +1.2 | ||
| Sports & Action | +0.6 | ||
| Landscape | +1.0 | ||
| Wildlife | +0.6 | ||
| Casual | +0.3 | ||
| Food | +1.6 | ||
| Macro | +1.1 | ||
| Architecture | +1.2 | ||
| Astrophotography | +0.3 | ||
| Vlogging & Video | — |
Full spec comparison
| Spec | D40X | D5100 | |
|---|---|---|---|
| Price | — | £35 used | |
| Released | 2007 | 2011 | ↑ |
| Sensor | 10.2MP APS-C (DX) CCD | 16.2MP APS-C CMOS | |
| Resolution | 10MP | 16MP | ↑ |
| Video | No video | Full HD 1080p/30 | |
| Autofocus | 3-point phase-detect AF (AF-S / AF-I lenses only - no body AF motor) | 11-point phase-detect (1 cross-type) via viewfinder; contrast AF with face priority in live view | |
| Stabilisation | No IBIS (lens-based stabilisation only) | No IBIS (lens-based stabilisation only) | |
| Burst Rate | 3fps | 4fps | ↑ |
| Battery Life | ~470 shots (CIPA) | ~660 shots (CIPA) | ↑ |
| Weight | 495g (with battery) | 560g (with battery) | ↓ |
| Weather Sealed | Not weather sealed | Not weather sealed | |
| Viewfinder | Optical pentamirror, 95% coverage, 0.8x | Optical pentamirror, 95% coverage, 0.78x | |
| Screen | 2.5" fixed LCD, 230k dots | 3.0" vari-angle LCD, 921k dots | |
| Mount | Nikon F | Nikon F-mount (DX) | |
| Memory Cards | Single SD slot | Single SD slot |
Compare side-by-side
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