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Canon

EOS R3

Pro 24MP full-frame stacked-sensor body built for sports, news, wildlife, and high-speed hybrid capture.

$5,999

Launch price

Released Sep 2021

vs
Ace Pro 2

Insta360

Ace Pro 2

8K Leica-lens action camera with 1/1.3-inch sensor, 4K60 Active HDR, PureVideo low-light mode, and 12m waterproofing.

$449

Launch price

Released Oct 2024

Ace Pro 2 is 3.1 years newer.

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Wins

9categories

EOS R3

Video & HybridSports & Action

Wins

2categories

Ace Pro 2

Sports & ActionVideo & Hybrid

1 categories tied

Which would you choose?

TL;DR — Key differences

EOS R3 wins 3 categories·Ace Pro 2 wins 2 categories
  • AEOS R3 has higher AF points / zones (1053 vs 0)
  • AEOS R3 has higher ISO max (native) (102,400 vs 6,400)
  • AEOS R3 has higher Max video bit rate (2600 Mbps vs 200 Mbps)
  • BAce Pro 2 has lower Weight (177.2 g vs 1015 g)
  • BAce Pro 2 has higher Resolution (50 MP vs 24.1 MP)

Key specs at a glance

EOS R3Ace Pro 2
Resolution24.1 MP50 MP
SensorFull Frame9.6 x 7.2 mm
ISO max102,4006,400
Burst30 fps20 fps
4K120 fps60 fps
IBIS8-stopNo
Weight1015 g177.2 g
Battery620 shots

Size and weight, to scale

EOS R3

150 × 143 × 87 mm

1015 g (2.24 lb / 35.80 oz)

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

Credit card

85.6 × 54 mm

for scale

Ace Pro 2 front view

Ace Pro 2

72 × 52 × 38 mm

177.2 g (0.39 lb / 6.25 oz)

EOS R3 is 78mm wider, 90mm taller, and 49mm thicker than Ace Pro 2.

EOS R3 is 838 g heavier than Ace Pro 2.

Depth (front-to-back): 87mm EOS R3 · 38mm Ace Pro 2

Back view, to scale

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

EOS R3

150 × 143 mm

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

Credit card

85.6 × 54 mm

Ace Pro 2 back view

Ace Pro 2

72 × 52 mm

Top view, to scale

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

EOS R3

150 × 87 mm

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

Credit card

85.6 × 54 mm

Ace Pro 2 top view

Ace Pro 2

72 × 38 mm

Sensor size, to scale

EOS R3

36 × 24 mm · Full Frame

864 mm² area

Ace Pro 2

9.6 × 7.2 mm · Compact

69 mm² area

12.5× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

EOS R3

✓ more lenses

Canon RF

105+

native lenses available

45 first-party60 third-party

Ace Pro 2: 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 caseEOS R3Ace Pro 2
Portrait
7.5Good✓ wins
3.0Limited
Sports & Action
8.5Excellent
10.0Excellent✓ wins
Video & Hybrid
9.0Excellent✓ wins
7.0Good
Landscape
7.0Good✓ wins
5.0Fair
Travel
6.5Good✓ wins
5.0Fair
Wildlife
5.0Fair
5.5Fair✓ wins
Vlogging
5.5Fair✓ wins
4.0Fair

Why pick one over the other

Reasons to choose

EOS R3

  • AF points / zones

    1053 vs 0 — higher is better

  • Subject recognition

    Adds People, Dogs, Cats…

  • Dimensions (W×H×D mm)

    Adds 150, 142.6, 87.2

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • ISO max (native)

    102,400 vs 6,400 — higher is better

  • Max video bit rate

    2600 Mbps vs 200 Mbps — higher is better

  • AA filter

    Only EOS R3 supports it

  • Eye AF

    Only EOS R3 supports it

Reasons to choose

Ace Pro 2

  • Stabilization modes

    Adds FlowState, Horizon Lock 360°, Active HDR…

  • Dimensions (W×H×D mm)

    Adds 71.9, 52.2, 38

  • Card types

    Adds microSD

  • Weight

    177.2 g vs 1015 g — lower is better

  • Resolution

    50 MP vs 24.1 MP — higher is better

  • Pre-Capture / Pre-Release

    Only Ace Pro 2 supports it

Both cameras share

  • ISO min (native)Both 100
  • Internal RAW videoBoth support internal raw video
  • Weather sealingBoth support weather sealing
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

EOS R3

Pros

  • 30fps electronic burst from a stacked full-frame sensor
  • Exceptional low-light AF down to -7.5 EV
  • Integrated pro body with large LP-E19 battery
  • 6K RAW video and 4K 120p
  • Rugged weather-sealed construction

Cons

  • 24MP resolution trails higher-detail rivals
  • Large integrated-grip body
  • Expensive compared with enthusiast full-frame bodies

Ace Pro 2

Pros

  • 8K30 video
  • 1/1.3-inch Leica lens
  • PureVideo night mode
  • 12m waterproof

Cons

  • 8K drains battery faster
  • Premium vs DJI Action
  • Fixed lens

Decided which one is right for you?

Compare live prices for the EOS R3 and Ace Pro 2 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

EOS R3
Ace Pro 2
Resolution
24.1 MP
50 MP2.1× more
Sensor type
Full Frame Stacked BSI CMOS
1/1.3-inch 8K CMOS (Leica SUMMARIT lens)
Sensor size
36.0 × 24.0 mm
9.6 x 7.2 mm
AA filter
Yes
No
EOS R3
Ace Pro 2
Aperture
f/2.6
Field of view
157 °
EOS R3
Ace Pro 2
Processor
DIGIC X
Image processor
EOS R3
Ace Pro 2
ISO min (native)
100
100
ISO max (native)
102,400+4 stops
6,400
ISO max (expanded)
204,800
6,400
EOS R3
Ace Pro 2
Shutter type
Mechanical + Electronic
Electronic shutter
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/64000 sec
1/8000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for portraits, EOS R3 or Ace Pro 2?

EOS R3 scores 7.5/10 versus 3.0/10 for Ace Pro 2 — 24.1MP — solid resolution.

What's the resolution difference between the EOS R3 and Ace Pro 2?

EOS R3 is 24.1 MP and Ace Pro 2 is 50 MP, so the Ace Pro 2 captures more detail for cropping and large prints.

Do the EOS R3 and Ace Pro 2 have in-body image stabilization?

EOS R3 has 8-stop in-body image stabilization, while Ace Pro 2 uses FlowState electronic stabilization (electronic).

Which shoots faster bursts — the EOS R3 or the Ace Pro 2?

EOS R3 reaches 30 fps electronic. Ace Pro 2 reaches 20 fps electronic.

What's the weight difference between the EOS R3 and Ace Pro 2?

EOS R3 weighs 1015 g and Ace Pro 2 weighs 177.2 g, so the Ace Pro 2 is 838 g lighter.

Do the EOS R3 and Ace Pro 2 record 4K video?

EOS R3: 6K RAW (max), 4K up to 120p. Ace Pro 2: 8K (max), 4K up to 60p.

Are the EOS R3 and Ace Pro 2 weather sealed?

EOS R3: Yes. Ace Pro 2: Yes.

How much does each cost?

EOS R3 launched at $5,999 and Ace Pro 2 at $449. The Ace Pro 2 is $5,550 less.

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

Add any camera to get a three-way EOS R3 vs Ace Pro 2 vs X comparison.

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

Product images courtesy of Canon and Insta360 press materials.