Leica
Q3
Full-frame fixed 28mm f/1.7 premium compact for documentary and travel.
$5,995
Released May 2023
OM System
OM-1 II
Flagship MFT with stacked sensor, 120fps, and pro wildlife features.
$2,399
Released Feb 2024
OM-1 II is 8 months newer.
Wins
Q3
Wins
OM-1 II
4 categories tied
TL;DR — Key differences
- BOM-1 II has higher Burst (electronic) (120 fps vs 15 fps)
- AQ3 has higher Resolution (60.3 MP vs 20.4 MP)
- BOM-1 II has higher Burst (mechanical) (10 fps vs 4 fps)
- AQ3 has lower ISO min (native) (50 vs 80)
- BOM-1 II has higher Battery life (CIPA) (520 shots vs 350 shots)
Key specs at a glance
Size and weight, to scale
Q3
130 × 80 × 92 mm
743 g (1.64 lb / 26.21 oz)
OM-1 II
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
Q3 is 5mm narrower and 12mm shorter than OM-1 II but it is also 19mm thicker.
Q3 is 144 g heavier than OM-1 II.
Depth (front-to-back): 92mm Q3 · 73mm OM-1 II
Sensor size, to scale
Q3
36 × 24 mm · Full Frame
864 mm² area
OM-1 II
17.4 × 13 mm · Compact / large-type
226 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Q3: mount data unavailable
OM-1 II
✓ more lensesMicro Four Thirds
130+
native lenses available
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
Q3
Subject recognition
Adds Human, Face, Eye…
Dimensions (W×H×D mm)
Adds 130, 80, 92
Resolution
60.3 MP vs 20.4 MP — higher is better
ISO min (native)
50 vs 80 — lower is better
Codecs
Adds ProRes
EVF magnification
0.79 × vs 0.78 × — higher is better
Reasons to choose
OM-1 II
Subject recognition
Adds People, Birds, Animals…
Dimensions (W×H×D mm)
Adds 134.8, 91.6, 72.7
Burst (electronic)
120 fps vs 15 fps — higher is better
Burst (mechanical)
10 fps vs 4 fps — higher is better
Pre-Capture / Pre-Release
Only OM-1 II supports it
In-body stabilization
Only OM-1 II supports it
Card types
Adds SD UHS-I
Microphone jack (3.5mm)
Only OM-1 II supports it
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 60 fps
- ✓Max video bit rate — Both 150 Mbps
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
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
OM-1 II
Pros
- ✓120fps stills
- ✓Stacked MFT
- ✓IP53 weather sealing
- ✓Computational features
Cons
- –MFT sensor size
- –Smaller ecosystem
- –Menu complexity
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, Q3 or OM-1 II?
Q3 scores 8.0/10 versus 2.5/10 for OM-1 II — 60.3MP — massive detail for large prints.
What's the resolution difference between the Q3 and OM-1 II?
Q3 is 60.3 MP and OM-1 II is 20.4 MP, so the Q3 captures more detail for cropping and large prints.
Do the Q3 and OM-1 II have in-body image stabilization?
Q3 does not have IBIS, while oM-1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the Q3 or the OM-1 II?
Q3 reaches 15 fps electronic. OM-1 II reaches 120 fps electronic.
What's the weight difference between the Q3 and OM-1 II?
Q3 weighs 743 g and OM-1 II weighs 599 g, so the OM-1 II is 144 g lighter.
Do the Q3 and OM-1 II record 4K video?
Q3: 8K (max), 4K up to 60p. OM-1 II: 4K up to 60p.
Are the Q3 and OM-1 II weather sealed?
Q3: Yes. OM-1 II: Yes.
Which has better battery life?
Rated battery life is 350 shots (CIPA) for the Q3 and 520 shots for the OM-1 II, giving the OM-1 II the edge.
How much does each cost?
Q3 launched at $5,995 and OM-1 II at $2,399. The OM-1 II is $3,596 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.