Xtra
Atto
Ultra-compact 54g wearable action camera with 1/1.3-inch sensor, 4K/60fps, 143° FOV, 128GB internal storage, and 220-min battery with Vision Dock.
$299
Launch priceReleased Jan 2026
Xtra
Sphra360
8K 360-degree camera with 1/1.1-inch CMOS sensor, 100MP panoramic photos, 5K single-lens mode, 10-bit X-Log, 105GB built-in storage, and Bullet Time up to 240fps.
$329
Launch priceReleased Nov 2025
Atto is 3 months newer.
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Wins
Atto
Wins
Sphra360
5 categories tied
Which would you choose?
TL;DR — Key differences
- BSphra360 has higher Card slots (1 vs 0)
- BSphra360 has higher ISO max (native) (51,200 vs 6,400)
- AAtto has lower Weight (54 g vs 181 g)
- BSphra360 has higher 4K max frame rate (120 fps vs 60 fps)
- BSphra360 has higher Battery runtime (100 min vs 90 min)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Credit card
85.6 × 54 mm
for scale
Sphra360
36 × 81 × 61 mm
181 g (0.40 lb / 6.38 oz)
Atto is 127 g lighter than Sphra360.
Depth (front-to-back): —61mm Sphra360
Back view, to scale
Width × Height — same proportions as the front of the body.
Credit card
85.6 × 54 mm
Sphra360
36 × 81 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Credit card
85.6 × 54 mm
Sphra360
36 × 61 mm
Sensor size, to scale
Atto
9.6 × 7.2 mm · Compact
69 mm² area
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
Atto
Card types
Adds microSD (via Vision Dock)
Weight
54 g vs 181 g — lower is better
Codecs
Adds H.264
Stabilization modes
Adds TiltGuard
Reasons to choose
Sphra360
Dimensions (W×H×D mm)
Adds 36.3, 81, 61.3
Card slots
1 vs 0 — higher is better
Card types
Adds microSD
ISO max (native)
51,200 vs 6,400 — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Codecs
Adds HEVC
Stabilization modes
Adds 360 Horizon Lock
Touchscreen
Only Sphra360 supports it
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓IBIS effectiveness — Both 6 stops
- ✓Weather sealing — Both support weather sealing
- ✓Waterproof depth — Both 10 m
- ✓Battery life (CIPA) — Both 640 shots
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Atto
Pros
- ✓54g lightest in class
- ✓220 min with Vision Dock
- ✓128GB built-in + 600MB/s transfer
- ✓5-min pre-recording
Cons
- –No built-in screen
- –4K/60fps 16:9 only
- –10m waterproof (no case)
Sphra360
Pros
- ✓8K 360 video, 100MP 360 photos
- ✓1/1.1-inch sensor with f/1.9
- ✓5K 60fps single-lens mode
- ✓105GB built-in + 1TB microSD
Cons
- –~100 min battery
- –360° stitching needed
- –10m waterproof only
Decided which one is right for you?
Compare live prices for the Atto and Sphra360 at major authorized retailers.
Xtra Sphra360
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Atto or Sphra360?
Sphra360 scores 9.5/10 versus 5.0/10 for Atto — Pre-Capture records before you press shutter.
How does stabilization compare between the Atto and Sphra360?
Atto uses Electronic stabilization (MotionMaster + TiltGuard) (electronic), while Sphra360 does not have IBIS.
What's the weight difference between the Atto and Sphra360?
Atto weighs 54 g and Sphra360 weighs 181 g, so the Atto is 127 g lighter.
Do the Atto and Sphra360 record 4K video?
Atto: 4K up to 60p. Sphra360: 4K up to 120p.
Are the Atto and Sphra360 weather sealed?
Atto: Yes. Sphra360: Yes.
Which has better battery runtime?
Atto is rated for about 90 minutes of continuous recording and Sphra360 for about 100 minutes, giving the Sphra360 the edge.
How much does each cost?
Atto launched at $299 and Sphra360 at $329. The Atto is $30 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Atto vs Sphra360 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed August 2026.
Product images courtesy of Xtra press materials.