Insta360 GO 3S Underwater Action Camera Review

Video
The IG inside its 196-foot (60 m) rated dive case.
Insta360 GO 3S camera seated in its Action Pod with the flip up touchscreen raised
The IG within its action pod
Insta360 GO 3S sealed inside its clear dive case on a mount
The IG in its dive case, with a depth rating of 196 feet (60 m)
Insta360 GO 3S camera pod next to the Action Pod showing a live wireless connection
The Insta360 GO 3S can wirelessly connect to its action pod for a live preview.
DIVEIN tester on a dock holding a pole rig loaded with action cameras before a test dive
The Insta360 X4, the GO 3S, the DJI Osmo Action 5 Pro, and the GoPro HERO 13 Black

Where to buy

The Insta360 GO 3S is the smallest 4K camera in the world. 

Yes, there are smaller cameras than the GO 3S and yes, there are other 4K cameras on the market, but this little guy offers the best of both worlds. And with its Action Pod—a case it clicks into—the GO 3S transforms into a regular-sized action camera.

This camera really excels with vlogging and first-person perspective footage, with mounts and clips that help you attach it wherever you like. This is a very small camera, so it can sneak and squeeze into many tiny spaces, like inside a chip bag or onto your dog’s collar.

It is lacking some finer resolution and greater frames per second, so there isn’t much range for time lapses or slo-mo compared to other models. But, as long as you know its limitations and exploit its strengths, the Insta360 GO 3S is a formidable action camera.

Things we like:

  • Great for vlogging
  • Very small and versatile
  • Has an internal storage
  • Insta360’s great editing app

Things we don't like:

  • Not really designed for divers

Where to buy

Price —
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Why buy from Scuba.com?

Scuba.com is a specialist dive retailer, and multiple buyers describe responsive, practical help when an order or product issue needs attention. Several also report orders arriving quickly or in time for when they were needed.

What buyers say

Several buyers describe responsive replies and practical help when an order or product issue needed attention. They describe support that answers quickly and stays helpful.

Multiple buyers also report orders arriving quickly or in time for when they were needed. Delivery timing is the positive point they describe.

Worth knowing

Some buyers report slower replies or more follow-up than expected when they needed help after ordering. Others describe delivery problems after ordering. Keep the order confirmation and tracking details until the item actually arrives.

DIVEIN editorial team
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Mini, mighty, and magnetic

Insta360 GO 3S docked in its Action Pod with the flip screen raised showing the live view
Insta360 GO 3S camera beside its open Action Pod showing the wireless preview screen

Insta360 has a knack for innovation (we’re looking at you X4), so it’s no surprise that the GO 3S isn’t built like your typical action cameras. The Insta360 GO 3S is made of two components: the teeny tiny camera itself and the Action Pod.

The Action Pod is the unit that the GO 3S magnetically clicks into to then become a more action-style camera. The Action Pod also acts as a charging case and includes a touchscreen for easy control. By using both the GO 3S alone and on the Action Pod, you essentially take advantage of having both a super small and regular-sized action camera.


Interesting angles

Insta360 GO 3S clipped to the brim of a DIVEIN cap and mounted on gear in a second frame
Insta360 GO 3S held by its magnet under a kitchen hood and worn on the wrist in a second frame

Insta360 is marketing the GO 3S as a vlogging camera, and it certainly does well with point of view (POV) shots. With just a few extra accessories, you can clip it to your cap during your next run or attach it to your shirt when strolling through town. It is also magnetic, so you could mount it on your oven hood and film yourself cooking or on a power rack during a gym session.

Although the GO 3S does work best as a vlogging or POV camera, something so small and light has lots of other great applications. Some of our favorites include magnetically attaching it to a kitchen knife for some cool chopping shots, or popping it inside lids for unboxing videos using the magnetic lanyard. Just type “Insta360 GO 3S tricks” into Youtube and you’ll see the only limit is imagination.


Waterproof rating

Video
The IG inside its 196-foot (60 m) rated dive case.

The Insta360 GO 3S camera boasts an IPX8 waterproof rating, so it can be submerged up to 33 feet (10 m) underwater, making it suitable for watersports, snorkeling, and pool activities. This is a significant improvement from its predecessor, the GO 3, which was only rated to 16 feet (5 m).

For the GO 3S to be waterproof, remember to install the provided lens guards. Again, being so small, it could take some awesome coral shots. Just duct tape it to a small rock and place it on a shallow reef and film the fishies going by.

The Action Pod is not waterproof and if you want to use it underwater it needs to be in the compatible housing. The dive case is rated to 196 feet (60 m) and is a must for divers who want to use the GO 3S on their next trip.

We have used ours a few times underwater, but to be honest it was more as a backup camera or to capture an alternate angle. The GO 3S does struggle in lower-light conditions, such as underwater, and we found our other underwater action cameras performed better.


Video and imaging performance

The GO 3S is currently the world’s smallest 4K camera, which is a step up from its 2.7K predecessor, the Insta360 GO3. Insta360 increased the standard video quality, as well as other modes like timelapse, timeshift, and slo-mo, which all increased from 1080p-1440p to 2.7-4K, quadrupling the resolution.

Other improvements with the GO 3S include improved digital stabilization with a new Max setting that simulates the effect of a powered gimbal. However, while the camera handles outdoor and well-lit scenes reasonably well, it does struggle in low-light environments, such as indoors or late evenings.

Accessories and mounting options

Insta360 offers various mounting accessories for the GO 3S, predominantly focused on bikes and watersports. For the GO 3S we used the magnetic pendant for wearing the camera around our neck, the easy clip for attaching it to hats, and the dive case.

If you are looking for a really specific mount, we suggest considering ways to personalize it, for example by supergluing tiny magnets to the camera for attachment. Or, just check out the endless options Insta360 has. I have seen scuba divers use the heavy duty clamp—originally meant for bicycles—to attach a camera to the neck of the tank, and freedivers use the motorbike back-brace mount.

Price/Quality Ratio

I do think that the Insta360 GO3 S is on the higher end of the price spectrum. For $50 less, the DJI Osmo Action 5 has very similar filming capabilities (if not better), is waterproof to 66 feet (20 m) without a dive case, and offers internal storage of 50GB.

The GO3 does come with storage built-in already, but there’s no option to insert an SD card for extra. There are actually two GO3 S models available—$399 for the 64GB or $429 for 128GB. I do think it’s worth forking out the extra $30 for double the storage if you do choose this camera.

Do we recommend Insta360 GO 3S?

If you are thinking about buying this camera, consider long and hard whether you will use it to its full potential. If you only want an action camera, then the Insta360 Ace Pro 2, DJI Osmo Action 5, or even GoPro HERO13 are all better choices.

Pretty similar in price, each of these has better video and image quality, better image stabilization, and they’re all built stronger. However, if you’re looking to capture unique, creative, and quirky angles to enhance your vlogging game, the small GO 3S is a perfect fit.

Specs & Features

Dimensions1 x 2.1 x 1 inches (5.6 x 54.4 x 24.8 mm)
Screen SizeRear: 2.2-inch (touch)
Waterproof RatingNo case: 33 feet (10 m); with case: 196 feet (60 m)
LensFOV: 112°; aperture: f/2.8
Photo Resolution12 MP
Video Resolution4K (16:9) @ 24/25/30fps ; 2.7K @100fps (Slo-Mo)
StorageInternal: 64GB or 128GB models
ChargingUSB-C cable

Where to buy

Price —
We only list shops we would buy from ourselves This price grid only shows retailers we trust: shops we vet on returns, delivery, and what real customers say about them. All prices are checked daily. We earn a commission from some of the shops when you buy through these links, at no extra cost to you.
Scuba.com logo
Excellent · verified retailer
DIVEIN's take
Why buy from Scuba.com?

Scuba.com is a specialist dive retailer, and multiple buyers describe responsive, practical help when an order or product issue needs attention. Several also report orders arriving quickly or in time for when they were needed.

What buyers say

Several buyers describe responsive replies and practical help when an order or product issue needed attention. They describe support that answers quickly and stays helpful.

Multiple buyers also report orders arriving quickly or in time for when they were needed. Delivery timing is the positive point they describe.

Worth knowing

Some buyers report slower replies or more follow-up than expected when they needed help after ordering. Others describe delivery problems after ordering. Keep the order confirmation and tracking details until the item actually arrives.

DIVEIN editorial team
Shop reputation
4.7
Google · 1,555 reviews · 2 platforms checked
checked August 31, 2026
Accepted payments
VISAAMEXDiscoverG Pay

Checkout on scuba.com is served over a secure SSL (https) connection.

Shipping & returns
Free Super Saver shipping on logo items; no minimum; US 48 states. Some fees may apply. Ships from US Eligible returns: 30 days for a full refund; days 31–90 for exchange or store credit if unused. Original shipping charges aren't refunded.
Visit Scuba.com
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