Upgrade Guide
Ricoh THETA Z1 51GB→Ricoh Ricoh G900SE
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the THETA Z1 51GB. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the Ricoh G900SE
-
Weather sealingAdded — fully sealed body
-
Generation3 years newer (2022 vs 2019)
Unchanged or similar
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Resolution20MP (down from 23MP — 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 | THETA Z1 51GB | Ricoh G900SE | |
|---|---|---|---|
| Portrait | — | ||
| Street | — | ||
| Travel | — | ||
| Wedding & Events | — | ||
| Documentary | — | ||
| Landscape | — | ||
| Casual | — | ||
| Food | — | ||
| Macro | — | ||
| Architecture | — | ||
| Astrophotography | — | ||
| Underwater | — |
Full spec comparison
| Spec | THETA Z1 51GB | Ricoh G900SE | |
|---|---|---|---|
| Price | £1,149 | £799 | |
| Released | 2019 | 2022 | ↑ |
| Sensor | 1" CMOS (×2) | 20MP 1/2.3-inch CMOS | |
| Resolution | 23MP | 20MP | ↓ |
| Video | 4K 30fps 360° | 1080p | |
| Autofocus | — | Contrast-detect AF (9 points) | |
| Stabilisation | Electronic | No stabilisation | |
| Burst Rate | — | 4fps | |
| Battery Life | 300 shots (Ricoh) | 340 shots (CIPA, estimated) | ↑ |
| Weight | 182g | 250g | ↓ |
| Weather Sealed | Not weather sealed | Yes | ↑ |
| Viewfinder | — | None (screen only) | |
| Screen | — | Fixed screen | |
| Mount | Fixed dual lens (360°) | Fixed rugged compact lens | |
| Memory Cards | 51 GB built in (no card slot) | Single SD |
Compare side-by-side
⚖️ Compare these cameras
See THETA Z1 51GB and Ricoh G900SE next to each other with our interactive comparison tool.
Get a personalised upgrade score
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Tell us what you shoot and we'll score the Ricoh G900SE against your specific genres — not just specs.
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