Sony
FX5
2026 Cinema Line full-frame camera with 16.6MP stacked Exmor RS, 5K Open Gate, internal 16-bit X-OCN RAW, triple base ISO, and FX3-class compact mobility.
$4,899
Launch priceReleased Aug 2026
Sony
RX1R II
Full-frame 42MP compact with fixed 35mm f/2 Zeiss lens — still unmatched for discreet high-res street work.
$3,299
Launch priceReleased Oct 2015
FX5 is 10.8 years newer.
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Wins
FX5
Wins
RX1R II
4 categories tied
Which would you choose?
TL;DR — Key differences
- BRX1R II has higher Burst (mechanical) (8 fps vs 0 fps)
- BRX1R II has higher Burst (electronic) (20 fps vs 0 fps)
- BRX1R II has lower ISO min (native) (100 vs 800)
- BRX1R II has higher Resolution (42.4 MP vs 16.6 MP)
- BRX1R II has higher ISO max (native) (25,600 vs 12,800)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
FX5
132 × 79 × 87 mm
734 g (1.62 lb / 25.89 oz)
Credit card
85.6 × 54 mm
for scale
RX1R II
113 × 65 × 72 mm
507 g (1.12 lb / 17.88 oz)
FX5 is 19mm wider, 14mm taller, and 15mm thicker than RX1R II.
FX5 is 227 g heavier than RX1R II.
Depth (front-to-back): 87mm FX5 · 72mm RX1R II
Back view, to scale
Width × Height — same proportions as the front of the body.
FX5
132 × 79 mm
Credit card
85.6 × 54 mm
RX1R II
113 × 65 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
FX5
132 × 87 mm
Credit card
85.6 × 54 mm
RX1R II
113 × 72 mm
Sensor size, to scale
FX5
35.7 × 23.8 mm · Full Frame
850 mm² area
RX1R II
35.9 × 24 mm · Full Frame
862 mm² area
Lens ecosystem
Native lens selection
FX5
✓ more lensesSony E
350+
native lenses available
RX1R II: 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
Why pick one over the other
Reasons to choose
FX5
AF low-light limit
-6 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 132.3, 79, 86.95
Codecs
Adds X-OCN LT, X-OCN C1, X-OCN C2…
AA filter
Only FX5 supports it
4K max frame rate
120 fps vs 60 fps — higher is better
Internal RAW video
Only FX5 supports it
Weather sealing
Only FX5 supports it
Card types
Adds CFexpress Type A
Reasons to choose
RX1R II
Burst (mechanical)
8 fps vs 0 fps — higher is better
Burst (electronic)
20 fps vs 0 fps — higher is better
Dimensions (W×H×D mm)
Adds 113.3, 65.4, 72
ISO min (native)
100 vs 800 — lower is better
Resolution
42.4 MP vs 16.6 MP — higher is better
ISO max (native)
25,600 vs 12,800 — higher is better
Pre-Capture / Pre-Release
Only RX1R II supports it
Weight
507 g vs 734 g — lower is better
Both cameras share
- ✓AF points / zones — Both 759
- ✓AF frame coverage — Both 94 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓RAW buffer depth — Both 120 frames
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
Pros & cons at a glance
Editorially curated highlights and trade-offs.
FX5
Pros
- ✓5K Open Gate + internal X-OCN RAW (LT / C1 / C2)
- ✓Triple base ISO 800 / 4000 / 12800 + Dual Gain
- ✓15+ stops DR (S-Log3) + BIONZ XR2 AI AF
- ✓5K 60p / 4K 120p / FHD 240p at launch
- ✓Compact body with IBIS, cooling, dual card slots
Cons
- –Body-only $4,899 — XLR handle / OLED EVF optional
- –Open Gate X-OCN only at launch (XAVC Open Gate via FW)
- –4K 240p / 5K 120p planned for 2027 firmware
- –No built-in EVF (optional DVF-EL1)
RX1R II
Pros
- ✓42MP full-frame in pocket class
- ✓Zeiss 35mm f/2 lens
- ✓Pop-up EVF
- ✓No AA filter
Cons
- –Fixed lens
- –Slow AF by modern standards
- –Premium price when new
Decided which one is right for you?
Compare live prices for the FX5 and RX1R II at major authorized retailers.
Sony RX1R II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, FX5 or RX1R II?
RX1R II scores 7.5/10 versus 5.0/10 for FX5 — 20fps burst captures fleeting moments.
What's the resolution difference between the FX5 and RX1R II?
FX5 is 16.6 MP and RX1R II is 42.4 MP, so the RX1R II captures more detail for cropping and large prints.
Do the FX5 and RX1R II have in-body image stabilization?
FX5 has 5.5-stop in-body image stabilization, while RX1R II has 7-stop in-body image stabilization.
What's the weight difference between the FX5 and RX1R II?
FX5 weighs 734 g and RX1R II weighs 507 g, so the RX1R II is 227 g lighter.
Do the FX5 and RX1R II record 4K video?
FX5: 4K up to 120p. RX1R II: 4K up to 60p.
Are the FX5 and RX1R II weather sealed?
FX5: Yes. RX1R II: No.
How much does each cost?
FX5 launched at $4,899 and RX1R II at $3,299. The RX1R II is $1,600 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way FX5 vs RX1R II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Sony press materials.