DJI Osmo Pocket 3vs Pentax K-3 Mark IIIvs A6400
DJI
DJI Osmo Pocket 3 (2023)
From £379
Best for Vloggers, travellers & content creators
View DJI Osmo Pocket 3
Pentax
Pentax K-3 Mark III (2021)
From £1699
Best for DSLR enthusiasts & outdoor photographers
View Pentax K-3 Mark III
Which should you buy?
Vloggers, Travellers & Content Creators — DJI Osmo Pocket 3 (2023): A 1-inch sensor on a 3-axis gimbal in a palm-sized body — the Osmo Pocket 3 makes cinematic stabilised footage as simple as pressing record.
Dslr Enthusiasts & Outdoor Photographers — Pentax K-3 Mark III (2021): The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.
Content Creation & Vlogging — A6400 (2019): The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Who should buy what
DJI Osmo Pocket 3 (2023)
- You travel and want cinema-quality stabilised video in your pocket
- You vlog solo and need reliable automatic subject tracking
- You want significantly better image quality than a smartphone gimbal
Pentax K-3 Mark III (2021)
- You're a committed DSLR photographer with significant investment in Pentax glass
- You shoot in extreme weather conditions and place build quality and reliability above everything
- You prefer optical viewfinder performance and want the best modern APS-C DSLR available
A6400 (2019)
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
Quick take: The pentax k-3 mark iii has the highest resolution at 26mp; the dji osmo pocket 3 is the most affordable; only the pentax k-3 mark iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | DJI Osmo Pocket 3 (2023) | Pentax K-3 Mark III (2021) | A6400 (2019) |
|---|---|---|---|
| Price | £379 | £1,699 | £899 |
| Sensor | 1-inch CMOS | 25.7MP APS-C BSI CMOS (AA-filterless) | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 20.0MP | 25.7MP | 24.2MP |
| Video | 4K/120p, 4K/60p, 1080p/240p | 4K/30p, 1080p/60p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Omnidirectional obstacle sensing + face/subject tracking AF | SAFOX 13 phase-detect, 101-point (25 cross-type) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 3-axis mechanical gimbal | 5.5-stop 5-axis IBIS (Shake Reduction III) | None (no IBIS) |
| Burst Rate | 20fps | 12fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 166 mins video (CIPA) | 800 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 179g | 820g body only | 403g (body, battery, card) |
| Dimensions | 46.0 × 33.5 × 139.8mm | 134.5 × 103.5 × 73.5mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | None | Optical pentaprism, 100% coverage, 1.05× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 2.0" rotating OLED touchscreen | 3.2" tilting touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fixed 20mm-equiv f/2.0 lens | Pentax KF-mount | Sony E-mount |
| Memory Cards | Single microSD | Dual SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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