Ricoh
GR IIIx
GR III with a tighter 40mm equivalent GR lens for a natural street, travel, and documentary perspective.
$999
Released Sep 2021
Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Released Nov 2024
Alpha 1 II is 3.2 years newer.
Wins
GR IIIx
Wins
Alpha 1 II
1 categories tied
TL;DR — Key differences
- BAlpha 1 II has higher AF points / zones (759 vs 49)
- BAlpha 1 II has higher Burst (electronic) (30 fps vs 4 fps)
- AGR IIIx has higher ISO max (native) (102,400 vs 32,000)
- AGR IIIx has lower Weight (262 g vs 743 g)
- BAlpha 1 II has higher Battery life (CIPA) (520 shots vs 200 shots)
Key specs at a glance
Size and weight, to scale
GR IIIx
109 × 62 × 35 mm
262 g (0.58 lb / 9.24 oz)
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
GR IIIx is 27mm narrower, 35mm shorter, and 48mm thinner than Alpha 1 II.
GR IIIx is 481 g lighter than Alpha 1 II.
Depth (front-to-back): 35mm GR IIIx · 83mm Alpha 1 II
Sensor size, to scale
GR IIIx
23.5 × 15.6 mm · APS-C
367 mm² area
Alpha 1 II
35.9 × 24 mm · Full Frame
862 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
GR IIIx: mount data unavailable
Alpha 1 II
✓ more lensesSony E
350+
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
GR IIIx
Subject recognition
Adds Face, Eye
Codecs
Adds MPEG-4 AVC/H.264, MOV
Dimensions (W×H×D mm)
Adds 109.4, 61.9, 35.2
Card types
Adds SD, SDHC, SDXC UHS-I
ISO max (native)
102,400 vs 32,000 — higher is better
Weight
262 g vs 743 g — lower is better
Reasons to choose
Alpha 1 II
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Dimensions (W×H×D mm)
Adds 136.1, 96.9, 82.9
Card types
Adds CFexpress Type A, SD UHS-II
AF points / zones
759 vs 49 — higher is better
Burst (electronic)
30 fps vs 4 fps — higher is better
Battery life (CIPA)
520 shots vs 200 shots — higher is better
Burst (mechanical)
10 fps vs 4 fps — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GR IIIx
Pros
- ✓40mm equivalent GR lens
- ✓Pocketable APS-C
- ✓3-axis SR
- ✓Snap focus street shooting
Cons
- –Fixed lens
- –No built-in EVF
- –Full HD video only
Alpha 1 II
Pros
- ✓50MP stacked sensor
- ✓30fps blackout-free burst
- ✓8K 30p video
- ✓Best Sony AF
Cons
- –Very expensive
- –Complex menus
- –Large files
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, GR IIIx or Alpha 1 II?
Alpha 1 II scores 9.0/10 versus 0.5/10 for GR IIIx — 30fps burst — pro-level action capture.
What's the resolution difference between the GR IIIx and Alpha 1 II?
GR IIIx is 24.24 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.
Do the GR IIIx and Alpha 1 II have in-body image stabilization?
GR IIIx has in-body image stabilization, while alpha 1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the GR IIIx or the Alpha 1 II?
GR IIIx reaches 4 fps electronic. Alpha 1 II reaches 30 fps electronic.
What's the weight difference between the GR IIIx and Alpha 1 II?
GR IIIx weighs 262 g and Alpha 1 II weighs 743 g, so the GR IIIx is 481 g lighter.
Do the GR IIIx and Alpha 1 II record 4K video?
GR IIIx: 4K up to 60p. Alpha 1 II: 8K (max), 4K up to 120p.
Are the GR IIIx and Alpha 1 II weather sealed?
GR IIIx: No. Alpha 1 II: Yes.
Which has better battery life?
Rated battery life is 200 shots (CIPA) for the GR IIIx and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.
How much does each cost?
GR IIIx launched at $999 and Alpha 1 II at $6,499. The GR IIIx is $5,500 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Ricoh and Sony press materials.