Cameraegg Compare logoCameraegg
Q3

Leica

Q3

Full-frame fixed 28mm f/1.7 premium compact for documentary and travel.

$5,995

Launch price

Released May 2023

vs

Panasonic

Lumix ZS300

Large-sensor travel compact with 20.1MP 1-inch BSI CMOS, 15x 24–360mm Leica zoom, 4K30 video, hybrid O.I.S., and USB-C — ZS200 successor without EVF.

$899

Launch price

Released May 2026

Lumix ZS300 is 2.9 years newer.

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.

Wins

5categories

Q3

LandscapePortrait

Wins

4categories

Lumix ZS300

1 categories tied

Which would you choose?

TL;DR — Key differences

Q3 wins 3 categories·Lumix ZS300 wins 2 categories
  • AQ3 has higher ISO max (native) (100,000 vs 12,800)
  • AQ3 has higher Resolution (60.3 MP vs 20.1 MP)
  • AQ3 has lower ISO min (native) (50 vs 125)
  • BLumix ZS300 has higher Burst (mechanical) (10 fps vs 4 fps)
  • BLumix ZS300 has lower Weight (337 g vs 743 g)

Key specs at a glance

Q3Lumix ZS300
Resolution60.3 MP20.1 MP
SensorFull Frame13.2 x 8.8 mm
ISO max100,00012,800
Burst15 fps30 fps
4K60 fps30 fps
IBISNoNo
Weight743 g337 g
Battery350 shots360 shots

Size and weight, to scale

Q3 front view

Q3

130 × 80 × 92 mm

743 g (1.64 lb / 26.21 oz)

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

Credit card

85.6 × 54 mm

for scale

Lumix ZS300

111 × 66 × 45 mm

337 g (0.74 lb / 11.89 oz)

Q3 is 19mm wider, 14mm taller, and 47mm thicker than Lumix ZS300.

Q3 is 406 g heavier than Lumix ZS300.

Depth (front-to-back): 92mm Q3 · 45mm Lumix ZS300

Back view, to scale

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

Q3 back view

Q3

130 × 80 mm

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

Credit card

85.6 × 54 mm

Lumix ZS300

111 × 66 mm

Top view, to scale

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

Q3 top view

Q3

130 × 92 mm

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

Credit card

85.6 × 54 mm

Lumix ZS300

111 × 45 mm

Sensor size, to scale

Q3

36 × 24 mm · Full Frame

864 mm² area

Lumix ZS300

13.2 × 8.8 mm · 1-inch

116 mm² area

7.4× 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

Use caseQ3Lumix ZS300
Portrait
7.5Good✓ wins
3.0Limited
Sports & Action
5.0Fair✓ wins
4.5Fair
Video & Hybrid
5.5Fair✓ wins
3.0Limited
Landscape
8.0Excellent✓ wins
0.0Limited
Travel
4.5Fair
4.5Fair
Wildlife
5.5Fair✓ wins
4.0Fair
Vlogging
3.0Limited
3.5Limited✓ wins

Why pick one over the other

Reasons to choose

Q3

  • Dimensions (W×H×D mm)

    Adds 130, 80, 92

  • Card types

    Adds SD UHS-II

  • ISO max (native)

    100,000 vs 12,800 — higher is better

  • Resolution

    60.3 MP vs 20.1 MP — higher is better

  • Codecs

    Adds H.265, ProRes

  • ISO min (native)

    50 vs 125 — lower is better

  • 4K max frame rate

    60 fps vs 30 fps — higher is better

  • Weather sealing

    Only Q3 supports it

Reasons to choose

Lumix ZS300

  • Dimensions (W×H×D mm)

    Adds 111.2, 66.4, 45.2

  • Card types

    Adds SD UHS-I U3

  • Burst (mechanical)

    10 fps vs 4 fps — higher is better

  • Weight

    337 g vs 743 g — lower is better

  • Burst (electronic)

    30 fps vs 15 fps — higher is better

  • Codecs

    Adds MP4

  • Battery life (CIPA)

    360 shots vs 350 shots — higher is better

Both cameras share

  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Card slotsBoth 1
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

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

Lumix ZS300

Pros

  • 1-inch 20.1MP BSI sensor
  • 15x 24–360mm Leica zoom
  • 4K video + 4K Photo burst
  • AF macro from 3 cm
  • USB-C + Bluetooth/Wi-Fi sharing

Cons

  • No built-in EVF (vs ZS200)
  • Slow f/3.3–6.4 aperture
  • Fixed rear screen only
  • $100 premium over ZS200 launch

Decided which one is right for you?

Compare live prices for the Q3 and Lumix ZS300 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

Q3
Lumix ZS300
Resolution
60.3 MP3× more
20.1 MP
Sensor type
Full-frame BSI CMOS
1-inch High Sensitivity MOS
Sensor size
36 x 24 mm
13.2 x 8.8 mm
AA filter
No
No
Q3
Lumix ZS300
Aperture
f/1.7
f/3.3-6.4
Focal length (35mm equiv.)
28 mm
24-360 mm
Q3
Lumix ZS300
Processor
Maestro Series processor with L2 Technology
Venus Engine
Q3
Lumix ZS300
ISO min (native)
50−75 less
125
ISO max (native)
100,000+3 stops
12,800
ISO max (expanded)
100,000
25,600
Q3
Lumix ZS300
Shutter type
Electronic + mechanical shutter
Focal-plane mechanical + electronic shutter
Max mechanical speed
1/2000 sec
1/2000 sec
Max electronic speed
1/16000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for landscape, Q3 or Lumix ZS300?

Q3 scores 8.0/10 versus 0.0/10 for Lumix ZS300 — 60.3MP — massive detail for large prints.

What's the resolution difference between the Q3 and Lumix ZS300?

Q3 is 60.3 MP and Lumix ZS300 is 20.1 MP, so the Q3 captures more detail for cropping and large prints.

How does stabilization compare between the Q3 and Lumix ZS300?

Q3 does not have IBIS, while Lumix ZS300 does not have IBIS.

Which shoots faster bursts — the Q3 or the Lumix ZS300?

Q3 reaches 15 fps electronic. Lumix ZS300 reaches 30 fps electronic.

What's the weight difference between the Q3 and Lumix ZS300?

Q3 weighs 743 g and Lumix ZS300 weighs 337 g, so the Lumix ZS300 is 406 g lighter.

Do the Q3 and Lumix ZS300 record 4K video?

Q3: 8K (max), 4K up to 60p. Lumix ZS300: 4K up to 30p.

Are the Q3 and Lumix ZS300 weather sealed?

Q3: Yes. Lumix ZS300: No.

Which has better battery life?

Rated battery life is 350 shots (CIPA) for the Q3 and 360 shots for the Lumix ZS300, giving the Lumix ZS300 the edge.

How much does each cost?

Q3 launched at $5,995 and Lumix ZS300 at $899. The Lumix ZS300 is $5,096 less.

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

Add any camera to get a three-way Q3 vs Lumix ZS300 vs X comparison.

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

Product images courtesy of Leica and Panasonic press materials.