Canon
EOS R3
Pro 24MP full-frame stacked-sensor body built for sports, news, wildlife, and high-speed hybrid capture.
$5,999
Launch priceReleased Sep 2021
Canon
EOS Rebel T8i
Popular entry APS-C DSLR (850D) with 24MP, Dual Pixel AF in live view, and 4K video.
$749
Launch priceReleased Feb 2020
EOS R3 is 1.6 years newer.
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Wins
EOS R3
Wins
EOS Rebel T8i
5 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R3 has higher IBIS effectiveness (8 stops vs 0 stops)
- AEOS R3 has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R3 has higher ISO max (native) (102,400 vs 25,600)
- AEOS R3 has higher Burst (electronic) (30 fps vs 11 fps)
- AEOS R3 has higher RAW buffer depth (150 frames vs 60 frames)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareEOS R3
150 × 143 × 87 mm
1015 g (2.24 lb / 35.80 oz)
Credit card
85.6 × 54 mm
for scale
EOS Rebel T8i
131 × 103 × 76 mm
515 g (1.14 lb / 18.17 oz)
EOS R3 is 19mm wider, 40mm taller, and 11mm thicker than EOS Rebel T8i.
EOS R3 is 500 g heavier than EOS Rebel T8i.
Depth (front-to-back): 87mm EOS R3 · 76mm EOS Rebel T8i
Sensor size, to scale
EOS R3
36 × 24 mm · Full Frame
864 mm² area
EOS Rebel T8i
22.3 × 14.9 mm · APS-C
332 mm² area
2.6× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R3
Canon RF
105+
native lenses available
EOS Rebel T8i
✓ more lensesCanon EF
300+
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
EOS R3
AF low-light limit
-7.5 EV vs -6.5 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
IBIS effectiveness
8 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 150, 142.6, 87.2
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
ISO max (native)
102,400 vs 25,600 — higher is better
Burst (electronic)
30 fps vs 11 fps — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Reasons to choose
EOS Rebel T8i
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 131, 103, 76
Weight
515 g vs 1015 g — lower is better
Battery life (CIPA)
640 shots vs 620 shots — higher is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Both cameras share
- ✓Resolution — Both 24.1 MP
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF points / zones — Both 1053
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
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
EOS Rebel T8i
Pros
- ✓Dual Pixel AF live view
- ✓24MP APS-C
- ✓4K video
- ✓Articulating screen
Cons
- –DSLR declining
- –No IBIS
- –4K crop
Decided which one is right for you?
Compare live prices for the EOS R3 and EOS Rebel T8i at major authorized retailers.
Canon EOS R3
Canon EOS Rebel T8i
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, EOS R3 or EOS Rebel T8i?
EOS R3 scores 7.0/10 versus 1.5/10 for EOS Rebel T8i — Full-frame sensor — wider dynamic range.
What's the resolution difference between the EOS R3 and EOS Rebel T8i?
Both cameras share the same 24.1 MP resolution.
Do the EOS R3 and EOS Rebel T8i have in-body image stabilization?
EOS R3 has 8-stop in-body image stabilization, while EOS Rebel T8i does not have IBIS.
Which shoots faster bursts — the EOS R3 or the EOS Rebel T8i?
EOS R3 reaches 30 fps electronic. EOS Rebel T8i reaches 11 fps electronic.
What's the weight difference between the EOS R3 and EOS Rebel T8i?
EOS R3 weighs 1015 g and EOS Rebel T8i weighs 515 g, so the EOS Rebel T8i is 500 g lighter.
Do the EOS R3 and EOS Rebel T8i record 4K video?
EOS R3: 6K RAW (max), 4K up to 120p. EOS Rebel T8i: 4K up to 60p.
Are the EOS R3 and EOS Rebel T8i weather sealed?
EOS R3: Yes. EOS Rebel T8i: No.
Which has better battery life?
Rated battery life is 620 shots (CIPA) for the EOS R3 and 640 shots for the EOS Rebel T8i, giving the EOS Rebel T8i the edge.
How much does each cost?
EOS R3 launched at $5,999 and EOS Rebel T8i at $749. The EOS Rebel T8i is $5,250 less.
Can't decide between two? Compare a third camera.
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Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.