Upgrade Guide
Nikon Coolpix A900→Nikon D4S
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
→
Strong upgrade
The D4S improves across 3 key areas at a reasonable price gap. Most Coolpix A900 owners will notice the difference.
What's new in the D4S
-
StabilisationIBIS added — significant for handheld and video
-
Burst rate11fps vs 7fps
-
Battery life~3020 shots (CIPA) vs ~270 shots (CIPA)
Unchanged or similar
-
Resolution16MP (down from 20MP — optimised for low light)
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 | Coolpix A900 | D4S | |
|---|---|---|---|
| Portrait | +2.8 | ||
| Street | -1.7 | ||
| Travel | -2.3 | ||
| Wedding & Events | +4.5 | ||
| Filmmaking | — | ||
| Documentary | +1.0 | ||
| Sports & Action | +2.9 | ||
| Landscape | +0.6 | ||
| Wildlife | +1.6 | ||
| Casual | -1.7 | ||
| Food | -0.3 | ||
| Macro | +0.2 | ||
| Architecture | +0.8 | ||
| Astrophotography | +4.3 |
Full spec comparison
| Spec | Coolpix A900 | D4S | |
|---|---|---|---|
| Price | — | £425 used | |
| Released | 2016 | 2014 | ↓ |
| Sensor | 20MP 1/2.3-inch CMOS | 16.2MP full-frame CMOS | |
| Resolution | 20MP | 16MP | ↓ |
| Video | 4K UHD/30p, 1080p/60 | Full HD 1080p/60 | |
| Autofocus | Contrast-detect AF with face detection and target tracking | 51-point phase-detect (15 cross-type, 11 at f/8) via viewfinder; contrast AF with face priority in live view | |
| Stabilisation | Lens-shift VR (optical, in the lens) | No IBIS (lens-based stabilisation only) | |
| Burst Rate | 7fps | 11fps | ↑ |
| Battery Life | ~270 shots (CIPA) | ~3020 shots (CIPA) | ↑ |
| Weight | 299g (with battery) | 1350g (with battery) | ↓ |
| Weather Sealed | Not weather sealed | Not weather sealed | |
| Viewfinder | None (rear screen only) | Optical pentaprism, 100% coverage, 0.7x | |
| Screen | 3.0" tilting LCD, 921k dots | 3.2" fixed LCD, 921k dots | |
| Mount | Fixed 35x Nikkor 24-840mm equivalent f/3.4-6.9 | Nikon F mount | |
| Memory Cards | Single SD slot | Dual slots: XQD + CompactFlash |
Compare side-by-side
⚖️ Compare these cameras
See Coolpix A900 and D4S next to each other with our interactive comparison tool.
Get a personalised upgrade score
Run the upgrade checker →
Tell us what you shoot and we'll score the D4S against your specific genres — not just specs.
Other upgrades from the Coolpix A900
Related buying guides
Camera family history