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PENTAX K-3 Mark III vs Ricoh GR IVx

Cameras

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Release Year
2021
2026
Launch Price
USD 1,999
-
Current Price
USD 1,728
-
Sensor Format
APS-C
APS-C
Processor
Interno/Internal
Interno/Internal
Resolution
25.73 MP
25.74 MP
In-body Stabilization
Weight
820g
265g
Battery (CIPA)
800 shots
250 shots
Sensor
Sensor Type
CMOS
CMOS
Low Pass Filter
No optical low-pass filter; includes AA filter simulator
AA filter simulator via SR unit (Off, Low, High)
ISO Range
ISO sensitivity 100–1600000
ISO 100-204800
Focus & Performance
Autofocus Points
101
-
Continuous shooting
Up to approx. 12 fps
-
Body
Body Style
Advanced APS-C DSLR
Fixed-lens compact camera
Body Type
DSLR
Fixed lens
Dimensions
134.5 × 103.5 × 73.5 mm
109.4 x 61.1 x 33.4 mm
Weather Sealing
Viewfinder
Optical pentaprism viewfinder, approx. 100% coverage, approx. 1.05× magnification
No built-in viewfinder
Display
Screen Size
3.2-inch monitor
3.0 inches
Screen Resolution
Approx. 1,620,000 dots
approx. 1,037,000 dots
Touch Screen
Screen Articulation
Fixed
Fixed screen
Video
Video Modes
4K up to 30 fps; Full HD up to 60 fps
4K (3840x2160) at 30p/24p and Full HD (1920x1080) at 60p/30p/24p
Max 4K FPS
30
30
FHD Max FPS
60
60
Storage
Storage Media
Dual SD/SDHC/SDXC slots; UHS-II in slot 1 and UHS-I in slot 2
approx. 53 GB internal memory and microSD/microSDHC/microSDXC (UHS-I)
Connectivity
Wireless
Wi‑Fi and Bluetooth
Tri-band Wi-Fi 6 2.4 GHz / 5.2 GHz / 5.8 GHz (IEEE 802.11 b/g/n/ax / a/n/ac/ax) and Bluetooth
Additional Info
Battery type
Rechargeable lithium-ion battery D-LI90
DB-120 rechargeable lithium-ion battery
Announce Date
Mar 30, 2021
Aug 27, 2026