Insta360 X4 Air vs Insta360 X3

Insta360 X4 Air

Insta360

Insta360 X4 Air

~$399

vs
Insta360 X3

Insta360

Insta360 X3

~$279

In short: The Insta360 X3 costs $120 less; the Insta360 X4 Air collects light over 38 mm² per lens against 31, which is 1.2× the area; the Insta360 X4 Air reframes to about 1.7K against 1.3K; the Insta360 X4 Air goes 15 m deep with no housing against 10 m; the Insta360 X4 Air claims 1 h 28 min at 8K30 360 video, screen off, Wi-Fi on auto, standard bitrate.

SpecInsta360 X4 AirInsta360 X3
Approx. price~$399~$279
Year-one cost~$435 with the plan~$315 with the plan
Type360360
Sensor size2 × 1/1.8-inch2 × 1/2-inch
Sensor area38 mm² per lens31 mm² per lens
Max resolution8K 360 @ 30fps5.7K 360 @ 30fps
Reframed resolution≈1.7K (estimated)≈1.3K (estimated)
Max fps at 4K5060
Max fps at 1080p6060
Max bitrate180 Mbps120 Mbps
Colour depthNot publishedNot published
Log profileNoneLOG
StabilisationFlowStateFlowState
Horizon lock360° (full)360° (full)
Aperturef/1.95f/1.9
Waterproof15 m bare, 60 m cased10 m bare, 50 m cased
Claimed runtime1 h 28 min at 8K30 360 video, screen off, Wi-Fi on auto, standard bitrate1 h 21 min at 5.7K30 360 video, lab conditions
Tested runtimeNo third-party test collectedNo third-party test collected
Battery2010 mAh1800 mAh
Cold rating-4°F-4°F
Weight165 g180 g
Screens2.09-inch rear touch2.29-inch rear touch
MountMagnetic quick-release + 1/4-201/4-20
Replaceable lensesYesNo
GPSNoNo
Voice controlYesYes
StoragemicroSDmicroSD
SubscriptionInsta360+, ~$35.88/yrInsta360+, ~$35.88/yr
Released20252022

A highlighted cell is the outright better figure in that row, and only where one direction is unambiguously better. Weight, field of view and battery capacity are left neutral because the better direction depends entirely on what you are shooting.

Strengths and drawbacks

Insta360 X4 Air

  • +35 g lighter than the X5, which is felt immediately on a pole or a helmet
  • +Replaceable lenses and 15 m bare waterproofing, both inherited from the X5
  • +Bigger sensors and a lower price than the X4 it sits beside
  • −Sensors are roughly half the X5's area — this is a daylight camera
  • −In 360 mode 4K tops out at 50 fps, against the X5's 120
  • −88 minutes at 8K30 from a smaller 2010 mAh battery
  • −No colour bit depth published, same as the rest of the line below the X6

Insta360 X3

  • +Under $300, the cheapest current 360 camera from a major brand
  • +Same FlowState stabilisation and reframing workflow as the flagships
  • +A huge stock of cheap used accessories and selfie sticks exists for it
  • +The battery is user-replaceable and spares are cheap and plentiful after four years on sale
  • −5.7K reframes to roughly 1.3K of usable 16:9 — visibly soft on a large screen
  • −1/2-inch sensors and a 2022 processor, so low light is poor
  • −Lenses are not replaceable
  • −A 120 Mbps ceiling, the lowest in the current X-series
  • −No quick-release mounting point, which the X4 and later bodies have