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Pentax

KF

Updated K-70 with modern connectivity and the same rugged Pentax philosophy.

$849

Launch price

Released Nov 2022

vs
GR IV

Ricoh

GR IV

Latest GR with 25.74MP APS-C sensor, 28mm equivalent lens, 5-axis SR, 53GB internal memory, and pocket street-camera handling.

$1,499

Launch price

Released Jan 2026

GR IV is 3.2 years newer.

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Wins

5categories

KF

WildlifeTravel

Wins

3categories

GR IV

PortraitVlogging

2 categories tied

Which would you choose?

TL;DR — Key differences

KF wins 4 categories·GR IV wins 1 categories
  • BGR IV 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 Card slots (2 vs 1)

Key specs at a glance

KFGR IV
Resolution24.2 MP25.74 MP
SensorAPS-CAPS-C
ISO max25,600204,800
Burst15 fps4 fps
4K60 fps60 fps
IBIS6-stopYes
Weight520 g262 g
Battery640 shots250 shots

Size and weight, to scale

KF

138 × 98 × 88 mm

520 g (1.15 lb / 18.34 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

GR IV front view

GR IV

109 × 61 × 33 mm

262 g (0.58 lb / 9.24 oz)

KF is 29mm wider, 37mm taller, and 55mm thicker than GR IV.

KF is 258 g heavier than GR IV.

Depth (front-to-back): 88mm KF · 33mm GR IV

Back view, to scale

Width × Height — same proportions as the front of the body.

KF

138 × 98 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

GR IV back view

GR IV

109 × 61 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

KF

138 × 88 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

GR IV top view

GR IV

109 × 33 mm

Sensor size, to scale

KF

23.5 × 15.6 mm · APS-C

367 mm² area

GR IV

23.3 × 15.5 mm · APS-C

361 mm² area

Lens ecosystem

Native lens selection

KF

✓ more lenses

Pentax K

70+

native lenses available

30 first-party40 third-party

GR IV: 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

Use caseKFGR IV
Portrait
6.5Good
6.5Good
Sports & Action
6.5Good✓ wins
1.5Limited
Video & Hybrid
6.0Good✓ wins
3.5Limited
Landscape
5.0Fair✓ wins
2.5Limited
Travel
8.5Excellent✓ wins
5.5Fair
Wildlife
9.0Excellent✓ wins
1.0Limited
Vlogging
7.0Good✓ wins
6.5Good

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 IV

  • Subject recognition

    Adds Face, Eye

  • Codecs

    Adds MPEG-4 AVC/H.264, MOV

  • Dimensions (W×H×D mm)

    Adds 109.4, 61.1, 32.7

  • Card types

    Adds microSD, microSDHC, microSDXC UHS-I

  • ISO max (native)

    204,800 vs 25,600 — higher is better

  • Weight

    262 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 AFBoth support eye af
  • 4K max frame rateBoth 60 fps
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth 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 IV

Pros

  • 25.74MP APS-C sensor
  • 5-axis sensor-shift SR
  • 53GB internal memory
  • Pocketable 28mm GR lens

Cons

  • Fixed lens
  • No built-in EVF
  • Full HD video only

Decided which one is right for you?

Compare live prices for the KF and GR IV at major authorized retailers.

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Full specifications

= category winner

KF
GR IV
Resolution
24.2 MP
25.74 MP+6%
Sensor type
APS-C CMOS
APS-C CMOS
Sensor size
23.5 × 15.6 mm
23.3 x 15.5 mm
AA filter
No
No
KF
GR IV
Aperture
F2.8-F16
Focal length (35mm equiv.)
28 mm
KF
GR IV
Processor
Image processor
GR ENGINE 7
KF
GR IV
ISO min (native)
100
100
ISO max (native)
25,600
204,800+3 stops
ISO max (expanded)
102,400
204,800
KF
GR IV
Shutter type
Mechanical + Electronic
Leaf shutter
Max mechanical speed
1/8000 sec
1/4000 sec
Max electronic speed
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, KF or GR IV?

KF scores 9.0/10 versus 1.0/10 for GR IV — Bird AF subject recognition.

What's the resolution difference between the KF and GR IV?

KF is 24.2 MP and GR IV is 25.74 MP, so the GR IV captures more detail for cropping and large prints.

Do the KF and GR IV have in-body image stabilization?

KF has 6-stop in-body image stabilization, while GR IV has in-body image stabilization.

Which shoots faster bursts — the KF or the GR IV?

KF reaches 15 fps electronic. GR IV reaches 4 fps electronic.

What's the weight difference between the KF and GR IV?

KF weighs 520 g and GR IV weighs 262 g, so the GR IV is 258 g lighter.

Do the KF and GR IV record 4K video?

KF: 4K up to 60p. GR IV: 4K up to 60p.

Are the KF and GR IV weather sealed?

KF: Yes. GR IV: No.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the KF and 250 shots for the GR IV, giving the KF the edge.

How much does each cost?

KF launched at $849 and GR IV 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 IV vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.

Product images courtesy of Pentax and Ricoh press materials.