X-A7vs Nikon Z9vs OM System OM-1 Mark II
OM System
OM System OM-1 Mark II (2024)
From £1999
Best for Wildlife, birds & outdoor sports
View OM System OM-1 Mark II
Which should you buy?
Beginner Fujifilm — X-A7 (2019): The most affordable X-mount entry — Fujifilm colour and film simulations with a large flip screen for beginners.
Professional Sports & Wildlife — Nikon Z9 (2021): The Z9 redefined what professional mirrorless could be — no mechanical shutter, 45MP stacked BSI, and 8K RAW in the most rugged Z body.
Wildlife, Birds & Outdoor Sports — OM System OM-1 Mark II (2024): OM System's most capable camera — 120fps AF burst, AI subject detection, and IP53 weather sealing make it the best-value pro wildlife camera.
Who should buy what
X-A7 (2019)
- You want an affordable first mirrorless with decent video capabilities
- You shoot a lot of selfie-style content or vlog on a budget
- Note: no viewfinder and limited lens support — the X-T30 II is a better long-term investment
Nikon Z9 (2021)
- You shoot professionally and need a camera body that handles everything without compromise
- You're a sports, wildlife, or commercial photographer who demands the absolute best
- You want a camera body that will remain state-of-the-art for the next decade
OM System OM-1 Mark II (2024)
- You shoot wildlife, birds in flight, or fast-moving action where tracking accuracy is critical
- You need extreme weather sealing for shooting in rain, dust, mud, or freezing cold
- You're invested in the MFT ecosystem and want the absolute best body available
Quick take: The nikon z9 has the highest resolution at 46mp; the x-a7 is the most affordable; only the nikon z9, om system om-1 mark ii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | X-A7 (2019) | Nikon Z9 (2021) | OM System OM-1 Mark II (2024) |
|---|---|---|---|
| Price | £399 | £5,499 | £1,999 |
| Sensor | 24.2MP APS-C CMOS (Bayer, not X-Trans) | 45.7MP full-frame BSI stacked CMOS | 20MP Micro Four Thirds Live MOS |
| Resolution | 24.2MP | 45.7MP | 20.0MP |
| Video | 4K/30p, 1080p/60p | 8K/30p RAW, 4K/120p, ProRes RAW | 4K/60p, 1080p/240p, 4K HLG |
| Autofocus | Phase-detect + contrast, 425 points | Subject detection AF, 493-point phase-detect | AI subject detection AF (birds, animals, motorsport) |
| Stabilisation | None (no IBIS) | 6-stop IBIS | 8.5-stop IBIS |
| Burst Rate | 6fps | 20fps RAW / 120fps JPEG | 120fps with AF tracking |
| Battery Life | ~440 shots (CIPA) | 740 shots (CIPA) | 520 shots (CIPA) |
| Weight | 320g body only | 1340g body only | 599g body only |
| Dimensions | 118.0 × 80.6 × 55.2mm | 149.0 × 149.5 × 90.5mm | 134.8 × 91.6 × 72.7mm |
| Weather Sealed | No | Yes | Yes |
| Viewfinder | None | 0.5" Quad-VGA OLED EVF, 3.69M dots, 120fps | 0.83" OLED EVF, 5.76M dots, 120fps |
| Screen | 3.5" fully articulating touchscreen | 3.2" tilting touchscreen | 3.0" fully articulating touchscreen |
| Mount | Fujifilm X-mount | Nikon Z-mount | Micro Four Thirds |
| Memory Cards | Single SD UHS-I slot | Dual CFexpress Type B / XQD | Dual SD UHS-II |
| Connectivity | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | USB-C, Wi-Fi, Bluetooth |
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