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Ricoh GR IV Monochrome vs A6400

Quick take: The Ricoh GR IV Monochrome has the highest resolution at 26MP; the A6400 is the most affordable; only the A6400 is weather sealed.

16 specs side by side·16 genres scored·UK prices from Wex Photo Video and Clifton Cameras

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Verdictwhich should you buy?

A6400 — Content Creation & Vlogging: 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
A6400 (2019)
is the right camera for you if…
  • 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
Full specificationsthe better value in each row is highlighted
Specification Ricoh GR IV MonochromeRicoh · 2026A6400Sony · 2019
Price £1,699£749Best
Sensor 25.7MP APS-C BSI CMOS (monochrome, no colour filter)24.2MP APS-C Exmor CMOS BSI
Resolution 26.0MPBest24.2MP
Video 1080p/60p4K/30p (6K oversampled, no crop), 1080p/120p slow-motion
Autofocus Hybrid phase/contrast-detect AFPhase-detect, 425 points, real-time Eye AF & animal AF
Stabilisation 6-stop IBIS (Shake Reduction)No stabilisation
Burst Rate 4fps11fps mechanical, 8fps with AF trackingBest
Battery Life 250 shots (CIPA)~410 shots (CIPA)Best
Weight 262g (with battery and card)Best403g (with battery and card)
Dimensions —120.0 × 66.9 × 59.7mm
Weather Sealed Not weather sealedYesBest
Viewfinder None (optional external finder accessory)EVF, 2.36M dots, 0.70× magnification
Screen 3.0" fixed touchscreen3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots
Mount Fixed 18.3mm f/2.8 lens (28mm equivalent)Sony E-mount
Memory Cards Single microSD (UHS-I) + 53GB internalSingle SD UHS-I
Connectivity USB-C, Wi-Fi, BluetoothMicro-USB, Wi-Fi, Bluetooth, NFC

Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.

How they score by genreengine base scores out of 10
Genre
Ricoh GR IV Monochrome
A6400
Portrait
2.7/10
6.7/10
Street
8.4/10
7.3/10
Travel
4.3/10
6.9/10
Wedding & Events
3.1/10
5.6/10
Documentary
5.3/10
6.1/10
Landscape
5.4/10
5.6/10
Casual
3.6/10
5.8/10
Food
3.6/10
6.1/10
Macro
4.5/10
5.2/10
Architecture
5.4/10
5.5/10
Astrophotography
4.5/10
6.0/10
Fun & simple
4.6/10
—
Vlogging & Video
—
6.0/10
Filmmaking
—
5.1/10
Sports & Action
—
6.9/10
Wildlife
—
7.4/10

Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →

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