Leica
Q3
Full-frame fixed 28mm f/1.7 premium compact for documentary and travel.
$5,995
Released May 2023
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
Released Jan 2026
GR IV is 2.6 years newer.
Wins
Q3
Wins
GR IV
3 categories tied
TL;DR — Key differences
- AQ3 has higher Burst (electronic) (15 fps vs 4 fps)
- BGR IV has lower Weight (262 g vs 743 g)
- AQ3 has higher Resolution (60.3 MP vs 25.74 MP)
- BGR IV has higher ISO max (native) (204,800 vs 100,000)
- AQ3 has lower ISO min (native) (50 vs 100)
Key specs at a glance
Size and weight, to scale
Q3
130 × 80 × 92 mm
743 g (1.64 lb / 26.21 oz)
GR IV
109 × 61 × 33 mm
262 g (0.58 lb / 9.24 oz)
Q3 is 21mm wider, 19mm taller, and 59mm thicker than GR IV.
Q3 is 481 g heavier than GR IV.
Depth (front-to-back): 92mm Q3 · 33mm GR IV
Sensor size, to scale
Q3
36 × 24 mm · Full Frame
864 mm² area
GR IV
23.3 × 15.5 mm · APS-C
361 mm² area
2.4× larger sensor area = shallower depth of field and better low-light performance.
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
Q3
Codecs
Adds H.265, H.264, ProRes
Dimensions (W×H×D mm)
Adds 130, 80, 92
Card types
Adds SD UHS-II
Burst (electronic)
15 fps vs 4 fps — higher is better
Resolution
60.3 MP vs 25.74 MP — higher is better
ISO min (native)
50 vs 100 — lower is better
Animal / bird AF
Only Q3 supports it
Subject recognition
Adds Human, Animal
Reasons to choose
GR IV
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
Weight
262 g vs 743 g — lower is better
ISO max (native)
204,800 vs 100,000 — higher is better
In-body stabilization
Only GR IV supports it
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Burst (mechanical) — Both 4 fps
- ✓4K max frame rate — Both 60 fps
- ✓Card slots — Both 1
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Q3
Pros
- ✓60MP full-frame
- ✓Summilux 28mm lens
- ✓Built like a tank
- ✓Unique aesthetic
Cons
- –Fixed lens
- –Very expensive
- –No interchangeable system
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, Q3 or GR IV?
Q3 scores 8.0/10 versus 2.5/10 for GR IV — 60.3MP — massive detail for large prints.
What's the resolution difference between the Q3 and GR IV?
Q3 is 60.3 MP and GR IV is 25.74 MP, so the Q3 captures more detail for cropping and large prints.
Do the Q3 and GR IV have in-body image stabilization?
Q3 does not have IBIS, while gR IV has in-body image stabilization.
Which shoots faster bursts — the Q3 or the GR IV?
Q3 reaches 15 fps electronic. GR IV reaches 4 fps electronic.
What's the weight difference between the Q3 and GR IV?
Q3 weighs 743 g and GR IV weighs 262 g, so the GR IV is 481 g lighter.
Do the Q3 and GR IV record 4K video?
Q3: 8K (max), 4K up to 60p. GR IV: 4K up to 60p.
Are the Q3 and GR IV weather sealed?
Q3: Yes. GR IV: No.
Which has better battery life?
Rated battery life is 350 shots (CIPA) for the Q3 and 250 shots for the GR IV, giving the Q3 the edge.
How much does each cost?
Q3 launched at $5,995 and GR IV at $1,499. The GR IV is $4,496 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.