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 priceReleased Oct 2024
Insta360
X4 Air
Ultralight 165g 8K 360 camera with dual 1/1.8-inch sensors, replaceable lenses, AdaptiveTone exposure, 15m waterproofing, and swappable 2010mAh battery.
$400
Launch priceReleased Oct 2025
X4 Air is 1 year 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
Ace Pro 2
Wins
X4 Air
8 categories tied
Which would you choose?
TL;DR — Key differences
- BX4 Air has higher ISO max (native) (25,600 vs 6,400)
- AAce Pro 2 has lower Weight (177.2 g vs 580 g)
- BX4 Air has higher Card slots (2 vs 1)
- BX4 Air has higher Resolution (72 MP vs 50 MP)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Ace Pro 2
72 × 52 × 38 mm
177.2 g (0.39 lb / 6.25 oz)
Credit card
85.6 × 54 mm
for scale
X4 Air
134 × 91 × 72 mm
580 g (1.28 lb / 20.46 oz)
Ace Pro 2 is 62mm narrower, 39mm shorter, and 34mm thinner than X4 Air.
Ace Pro 2 is 403 g lighter than X4 Air.
Depth (front-to-back): 38mm Ace Pro 2 · 72mm X4 Air
Back view, to scale
Width × Height — same proportions as the front of the body.
Ace Pro 2
72 × 52 mm
Credit card
85.6 × 54 mm
X4 Air
134 × 91 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Ace Pro 2
72 × 38 mm
Credit card
85.6 × 54 mm
X4 Air
134 × 72 mm
Sensor size, to scale
Ace Pro 2
9.6 × 7.2 mm · Compact
69 mm² area
X4 Air
17.3 × 13 mm · Micro Four Thirds
225 mm² area
3.3× 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
Why pick one over the other
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 580 g — lower is better
Reasons to choose
X4 Air
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 134, 91, 72
Card types
Adds SD UHS-II
ISO max (native)
25,600 vs 6,400 — higher is better
AA filter
Only X4 Air supports it
Eye AF
Only X4 Air supports it
Animal / bird AF
Only X4 Air supports it
In-body stabilization (IBIS)
Only X4 Air supports it
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Burst (mechanical) — Both 8 fps
- ✓Burst (electronic) — Both 20 fps
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓RAW buffer depth — Both 120 frames
- ✓4K max frame rate — Both 60 fps
Pros & cons at a glance
Editorially curated highlights and trade-offs.
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
X4 Air
Pros
- ✓Lightest Insta360 8K 360 (165g)
- ✓Dual 1/1.8-inch sensors (134% more pixel area vs X4)
- ✓8K30 + 6K50 360; 4K single-lens mode
- ✓Replaceable lenses + 15m waterproof
- ✓AdaptiveTone + Portrait Mode
Cons
- –No 8K60 vs X5 flagship
- –8K runtime ~88 min
- –360 workflow needs reframing
- –Fewer pro codecs than X5
Decided which one is right for you?
Compare live prices for the Ace Pro 2 and X4 Air at major authorized retailers.
Insta360 Ace Pro 2
Insta360 X4 Air
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
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Ace Pro 2 or X4 Air?
Ace Pro 2 scores 10.0/10 versus 6.5/10 for X4 Air — 20fps burst — fast action ready.
What's the resolution difference between the Ace Pro 2 and X4 Air?
Ace Pro 2 is 50 MP and X4 Air is 72 MP, so the X4 Air captures more detail for cropping and large prints.
Do the Ace Pro 2 and X4 Air have in-body image stabilization?
Ace Pro 2 uses FlowState electronic stabilization (electronic), while X4 Air has 7-stop in-body image stabilization.
Which shoots faster bursts — the Ace Pro 2 or the X4 Air?
Ace Pro 2 reaches 20 fps electronic. X4 Air reaches 20 fps electronic.
What's the weight difference between the Ace Pro 2 and X4 Air?
Ace Pro 2 weighs 177.2 g and X4 Air weighs 580 g, so the Ace Pro 2 is 403 g lighter.
Do the Ace Pro 2 and X4 Air record 4K video?
Ace Pro 2: 8K (max), 4K up to 60p. X4 Air: 4K up to 60p.
Are the Ace Pro 2 and X4 Air weather sealed?
Ace Pro 2: Yes. X4 Air: Yes.
How much does each cost?
Ace Pro 2 launched at $449 and X4 Air at $400. The X4 Air is $49 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Ace Pro 2 vs X4 Air vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Insta360 press materials.