Insta360
Luna Ultra
Flagship dual-lens 3-axis gimbal camera with Leica Summicron 1-inch 8K main lens, 1/1.3-inch telephoto, detachable 2-inch OLED screen, 8K30 / 4K120 video, and 37MP UltraPhoto.
$770
Launch priceReleased Jun 2026
Ricoh
GR Digital IV
Cult compact GR Digital with 10MP CCD sensor, fast 28mm equivalent f/1.9 lens, and sensor-shift stabilization.
$599
Launch priceReleased Sep 2011
Luna Ultra is 14.8 years newer.
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Wins
Luna Ultra
Wins
GR Digital IV
1 categories tied
Which would you choose?
TL;DR — Key differences
- ALuna Ultra has higher Resolution (37 MP vs 10 MP)
- ALuna Ultra has higher ISO max (native) (6,400 vs 3,200)
- ALuna Ultra has higher 4K max frame rate (120 fps vs 60 fps)
- BGR Digital IV has lower ISO min (native) (80 vs 100)
- BGR Digital IV has higher Max video bit rate (150 Mbps vs 120 Mbps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Luna Ultra
52 × 170 × 39 mm
233 g (0.51 lb / 8.22 oz)
Credit card
85.6 × 54 mm
for scale
GR Digital IV
109 × 60 × 33 mm
219 g (0.48 lb / 7.73 oz)
Luna Ultra is 56mm narrower than GR Digital IV but it is also 110mm taller and 6mm thicker.
Luna Ultra is 14 g heavier than GR Digital IV.
Depth (front-to-back): 39mm Luna Ultra · 33mm GR Digital IV
Back view, to scale
Width × Height — same proportions as the front of the body.
Luna Ultra
52 × 170 mm
Credit card
85.6 × 54 mm
GR Digital IV
109 × 60 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Luna Ultra
52 × 39 mm
Credit card
85.6 × 54 mm
GR Digital IV
109 × 33 mm
Sensor size, to scale
Luna Ultra
13.2 × 8.8 mm · 1-inch
116 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
Luna Ultra
Codecs
Adds H.265
Dimensions (W×H×D mm)
Adds 52.4, 169.9, 38.5
Card types
Adds microSD
Resolution
37 MP vs 10 MP — higher is better
ISO max (native)
6,400 vs 3,200 — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Touchscreen
Only Luna Ultra supports it
Wi-Fi
Only Luna Ultra supports it
Reasons to choose
GR Digital IV
Codecs
Adds Motion JPEG AVI
Dimensions (W×H×D mm)
Adds 108.6, 59.8, 32.5
Card types
Adds SD, SDHC, Eye-Fi
In-body stabilization (IBIS)
Only GR Digital IV supports it
ISO min (native)
80 vs 100 — lower is better
Max video bit rate
150 Mbps vs 120 Mbps — higher is better
Weight
219 g vs 233 g — lower is better
Both cameras share
- ✓Card slots — Both 1
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Luna Ultra
Pros
- ✓Dual Leica lenses (1" + tele)
- ✓8K30 with 4K120 & 1080p240
- ✓Detachable 2" OLED screen
- ✓3-axis gimbal + Deep Track 5.0
Cons
- –Premium vs Pocket 3
- –No waterproofing
- –Tele reach capped at 240mm equiv
GR Digital IV
Pros
- ✓Fast f/1.9 GR lens
- ✓CCD rendering
- ✓Compact classic
- ✓Sensor-shift stabilization
Cons
- –Small sensor
- –VGA video only
- –Very old model
Decided which one is right for you?
Compare live prices for the Luna Ultra and GR Digital IV at major authorized retailers.
Insta360 Luna Ultra
Ricoh GR Digital IV
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, Luna Ultra or GR Digital IV?
Luna Ultra scores 7.5/10 versus 1.0/10 for GR Digital IV — 3-axis mechanical gimbal — cinema-smooth footage in motion.
What's the resolution difference between the Luna Ultra and GR Digital IV?
Luna Ultra is 37 MP and GR Digital IV is 10 MP, so the Luna Ultra captures more detail for cropping and large prints.
Do the Luna Ultra and GR Digital IV have in-body image stabilization?
Luna Ultra uses a 3-axis mechanical gimbal, while GR Digital IV has in-body image stabilization.
What's the weight difference between the Luna Ultra and GR Digital IV?
Luna Ultra weighs 233 g and GR Digital IV weighs 219 g, so the GR Digital IV is 14 g lighter.
Do the Luna Ultra and GR Digital IV record 4K video?
Luna Ultra: 8K (7680×4320) (max), 4K up to 120p. GR Digital IV: 4K up to 60p.
Are the Luna Ultra and GR Digital IV weather sealed?
Luna Ultra: No. GR Digital IV: No.
How much does each cost?
Luna Ultra launched at $770 and GR Digital IV at $599. The GR Digital IV is $171 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Luna Ultra vs GR Digital IV vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Insta360 and Ricoh press materials.