Pentax
KF
Updated K-70 with modern connectivity and the same rugged Pentax philosophy.
$849
Launch priceReleased Nov 2022
Ricoh
GR IVx
40mm-equivalent GR IV sibling with a newly designed 26.1mm f/2.8 lens, 25.74MP APS-C sensor, 5-axis SR, 4K video, 53GB internal storage, and pocket street-camera handling. Winter 2026 planned.
$1,499
Launch priceReleased Dec 2026
GR IVx is 4.1 years newer.
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Wins
KF
Wins
GR IVx
2 categories tied
Which would you choose?
TL;DR — Key differences
- BGR IVx has higher ISO max (native) (204,800 vs 25,600)
- AKF has higher Burst (electronic) (15 fps vs 4 fps)
- AKF has higher Battery life (CIPA) (640 shots vs 250 shots)
- AKF has higher AF points / zones (101 vs 49)
- AKF has higher 4K max frame rate (60 fps vs 30 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareKF
138 × 98 × 88 mm
520 g (1.15 lb / 18.34 oz)
Credit card
85.6 × 54 mm
for scale
GR IVx
109 × 61 × 33 mm
265 g (0.58 lb / 9.35 oz)
KF is 29mm wider, 37mm taller, and 55mm thicker than GR IVx.
KF is 255 g heavier than GR IVx.
Depth (front-to-back): 88mm KF · 33mm GR IVx
Sensor size, to scale
KF
23.5 × 15.6 mm · APS-C
367 mm² area
GR IVx
23.3 × 15.5 mm · APS-C
361 mm² area
Lens ecosystem
Native lens selection
KF
✓ more lensesPentax K
70+
native lenses available
GR IVx: mount data unavailable
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
KF
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds H.265, H.264
Dimensions (W×H×D mm)
Adds 138, 98, 88
Card types
Adds SD UHS-II
Burst (electronic)
15 fps vs 4 fps — higher is better
Battery life (CIPA)
640 shots vs 250 shots — higher is better
AF points / zones
101 vs 49 — higher is better
Animal / bird AF
Only KF supports it
Reasons to choose
GR IVx
Subject recognition
Adds Face, Eye
Codecs
Adds MPEG-4 AVC/H.264, MOV
Dimensions (W×H×D mm)
Adds 109.4, 61.1, 33.4
Card types
Adds microSD, microSDHC, microSDXC UHS-I
ISO max (native)
204,800 vs 25,600 — higher is better
Weight
265 g vs 520 g — lower is better
Resolution
25.74 MP vs 24.2 MP — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Max video bit rate — Both 150 Mbps
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
KF
Pros
- ✓Weather sealed
- ✓IBIS
- ✓Affordable DSLR
Cons
- –DSLR platform
- –No 4K
- –Niche ecosystem
GR IVx
Pros
- ✓New 26.1mm f/2.8 GR lens (40mm equiv.)
- ✓GR IV 25.74MP APS-C + 5-axis SR
- ✓4K 30p/24p and 53GB built-in storage
- ✓Snap focus, 50/71mm crops, 2-stop ND
- ✓Pocketable 265g body
Cons
- –Price not yet announced (listed at GR IV $1,499)
- –Winter 2026 or later — still in development as of Aug 2026
- –No built-in EVF
- –Fixed 40mm-equiv. lens
Decided which one is right for you?
Compare live prices for the KF and GR IVx at major authorized retailers.
Ricoh GR IVx
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, KF or GR IVx?
KF scores 9.0/10 versus 1.0/10 for GR IVx — Bird AF subject recognition.
What's the resolution difference between the KF and GR IVx?
KF is 24.2 MP and GR IVx is 25.74 MP, so the GR IVx captures more detail for cropping and large prints.
Do the KF and GR IVx have in-body image stabilization?
KF has 6-stop in-body image stabilization, while GR IVx has in-body image stabilization.
Which shoots faster bursts — the KF or the GR IVx?
KF reaches 15 fps electronic. GR IVx reaches 4 fps electronic.
What's the weight difference between the KF and GR IVx?
KF weighs 520 g and GR IVx weighs 265 g, so the GR IVx is 255 g lighter.
Do the KF and GR IVx record 4K video?
KF: 4K up to 60p. GR IVx: 4K up to 30p.
Are the KF and GR IVx weather sealed?
KF: Yes. GR IVx: No.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the KF and 250 shots for the GR IVx, giving the KF the edge.
How much does each cost?
KF launched at $849 and GR IVx at $1,499. The KF is $650 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way KF vs GR IVx vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of Pentax and Ricoh press materials.