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Fujifilm

X100S

Second-generation X100 with 16MP X-Trans sensor and fixed 35mm-equivalent lens.

$1,299

Launch price

Released Jan 2013

vs
GR IVx

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 price

Released Dec 2026

GR IVx is 13.9 years newer.

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Wins

4categories

X100S

Wins

5categories

GR IVx

Portrait

2 categories tied

Which would you choose?

TL;DR — Key differences

X100S wins 1 categories·GR IVx wins 4 categories
  • BGR IVx has higher ISO max (native) (204,800 vs 6,400)
  • AX100S has higher AF points / zones (425 vs 49)
  • BGR IVx has higher Max video bit rate (150 Mbps vs 36 Mbps)
  • BGR IVx has lower ISO min (native) (100 vs 200)
  • BGR IVx has lower Weight (265 g vs 445 g)

Key specs at a glance

X100SGR IVx
Resolution16.3 MP25.74 MP
SensorAPS-CAPS-C
ISO max6,400204,800
Burst6 fps4 fps
IBISNoYes
Weight445 g265 g
Battery330 shots250 shots
4K30 fps

Size and weight, to scale

X100S

127 × 74 × 54 mm

445 g (0.98 lb / 15.70 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 IVx front view

GR IVx

109 × 61 × 33 mm

265 g (0.58 lb / 9.35 oz)

X100S is 17mm wider, 13mm taller, and 21mm thicker than GR IVx.

X100S is 180 g heavier than GR IVx.

Depth (front-to-back): 54mm X100S · 33mm GR IVx

Sensor size, to scale

X100S

23.6 × 15.6 mm · APS-C

368 mm² area

GR IVx

23.3 × 15.5 mm · APS-C

361 mm² area

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseX100SGR IVx
Portrait
4.5Fair
6.5Good✓ wins
Sports & Action
2.5Limited✓ wins
1.0Limited
Video & Hybrid
1.0Limited
4.0Fair✓ wins
Landscape
0.0Limited
2.5Limited✓ wins
Travel
4.0Fair
5.5Fair✓ wins
Wildlife
0.0Limited
1.0Limited✓ wins
Vlogging
3.0Limited
5.5Fair✓ wins

Why pick one over the other

Reasons to choose

X100S

  • Subject recognition

    Adds Human

  • Codecs

    Adds H.264

  • Dimensions (W×H×D mm)

    Adds 126.5, 74.4, 53.9

  • Card types

    Adds SD UHS-I

  • AF points / zones

    425 vs 49 — higher is better

  • Burst (mechanical)

    6 fps vs 4 fps — higher is better

  • Burst (electronic)

    6 fps vs 4 fps — higher is better

  • Battery life (CIPA)

    330 shots vs 250 shots — higher is better

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 6,400 — higher is better

  • Max video bit rate

    150 Mbps vs 36 Mbps — higher is better

  • ISO min (native)

    100 vs 200 — lower is better

  • In-body stabilization (IBIS)

    Only GR IVx supports it

Both cameras share

  • Eye AFBoth support eye af
  • 1080p max frame rateBoth 60 fps
  • Card slotsBoth 1
  • TouchscreenBoth support touchscreen

Pros & cons at a glance

Editorially curated highlights and trade-offs.

X100S

Pros

  • Classic fixed-lens design
  • X-Trans sensor
  • Hybrid viewfinder

Cons

  • Very old AF
  • No 4K
  • Fixed screen

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 X100S and GR IVx at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

X100S
GR IVx
Resolution
16.3 MP
25.74 MP+58%
Sensor type
APS-C X-Trans CMOS
APS-C CMOS
Sensor size
23.6 x 15.6 mm
23.3 x 15.5 mm
AA filter
No
No
X100S
GR IVx
Aperture
f/2.0
F2.8-F16
Focal length (35mm equiv.)
35 mm
40 mm
X100S
GR IVx
Processor
EXR Processor II
GR ENGINE 7
X100S
GR IVx
ISO min (native)
200
100−100 less
ISO max (native)
6,400
204,800+5 stops
ISO max (expanded)
51,200
204,800
X100S
GR IVx
Shutter type
Leaf Shutter + Electronic
Leaf shutter
Max mechanical speed
1/4000 sec
1/4000 sec
Max electronic speed
1/32000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for vlogging, X100S or GR IVx?

GR IVx scores 5.5/10 versus 3.0/10 for X100S — 265g — easy to handhold for selfie video.

What's the resolution difference between the X100S and GR IVx?

X100S is 16.3 MP and GR IVx is 25.74 MP, so the GR IVx captures more detail for cropping and large prints.

Do the X100S and GR IVx have in-body image stabilization?

X100S does not have IBIS, while GR IVx has in-body image stabilization.

Which shoots faster bursts — the X100S or the GR IVx?

X100S reaches 6 fps electronic. GR IVx reaches 4 fps electronic.

What's the weight difference between the X100S and GR IVx?

X100S weighs 445 g and GR IVx weighs 265 g, so the GR IVx is 180 g lighter.

Do the X100S and GR IVx record 4K video?

X100S: Full HD. GR IVx: 4K up to 30p.

Are the X100S and GR IVx weather sealed?

X100S: No. GR IVx: No.

Which has better battery life?

Rated battery life is 330 shots (CIPA) for the X100S and 250 shots for the GR IVx, giving the X100S the edge.

How much does each cost?

X100S launched at $1,299 and GR IVx at $1,499. The X100S is $200 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way X100S vs GR IVx vs X comparison.

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

Product images courtesy of Fujifilm and Ricoh press materials.