Smartphone underwater housings are getting more and more popular — and honestly, it’s easy to see why. Your phone camera is already in your pocket, the quality is miles ahead of where it was a few years ago, and for many divers it’s the simplest way to start filming the reef without investing in a full camera setup.
There are now several options on the market, but two housings in particular come up again and again in conversations with divers: the DiveVOLK SeaTouch 4 series and the SeaLife SportDiver series.
Both aim to do the same thing — safely take your smartphone underwater so you can capture photos and videos during dives. However, their designs, control systems, and approach to underwater shooting differ quite a bit.
This guide looks at how SeaLife SportDiver and DiveVOLK SeaTouch compare in real use, especially for divers who want a simple way to start filming underwater.
Why smartphone housings are so popular
For many divers, a smartphone housing hits a sweet spot:
- No need to buy a separate camera
- Easy sharing and editing after the dive
- Small, lightweight, and travel-friendly
- Ideal for casual photos, video clips, and memories
That said, once underwater both the phone and the housing matter — but in different ways.
Your phone determines the base image quality (sensor, processing, lenses), while the housing determines how easily you can access and control that camera underwater. A poor phone will limit results, but a poorly designed housing can make it difficult to actually use the camera effectively while diving.
How the housing seals, how you control the camera, and how easy it is to operate underwater all influence whether you come back with usable footage.
The two housings at a glance
The SeaLife SportDiver range, which includes the SportDiver Ultra and the lighter SportDiver S, follows a traditional underwater camera philosophy.
These housings use physical buttons and a dedicated camera app, creating a shooting experience that feels similar to compact underwater camera systems. The idea is to keep camera operation simple and predictable underwater.
The SportDiver Ultra is the more feature-rich model, while the SportDiver S is designed as a lighter, more travel-friendly option that keeps the same core concept.
DiveVOLK SeaTouch 4 Series
The DiveVOLK SeaTouch 4 takes a completely different approach.
Instead of physical buttons, it uses a touch-sensitive membrane that allows divers to operate the smartphone’s touchscreen underwater. This means users can interact with the phone almost exactly as they would on land.
The SeaTouch 4 Max is available in Plus and Platinum versions, with the Platinum version including additional mounting options and featuring durable aluminum design.
Because the touchscreen remains accessible, divers can use almost any camera or video app, not just a single dedicated housing app.
Depth ratings and real-world use
Both systems are designed for recreational scuba diving depths, but they handle controls differently.
DiveVOLK is 60m / 200ft waterproof, meaning the housing itself is capable of going very deep. However, the touchscreen sensitivity is rated to 30m / 100ft. Beyond that depth, the housing remains sealed, but touchscreen interaction may become unreliable or unusable.
SeaLife SportDiver Ultra is rated to 40m / 130ft and does not rely on touchscreen input at all. Because all controls are physical, the shooting experience remains consistent throughout the dive, with no change in how the camera is operated as depth increases (within the housing’s limits).
Setup and phone protection
SeaLife uses a structured, camera-style setup designed to be repeatable every time. The phone is held in place using an internal spring-loaded clamp system with adjustable supports, allowing different phone sizes to be secured firmly without model-specific trays. Once the phone is installed, the housing is sealed and a vacuum check can be performed before the dive.
The vacuum system allows the user to confirm that the housing is sealed correctly before entering the water. If the pressure changes, the housing provides a warning, reducing the risk of discovering a leak only once submerged. In addition to the vacuum system, the housing also includes a moisture leak alarm as a secondary layer of protection.
The strength of this approach is predictability. The setup process follows the same steps every time, and the diver receives clear confirmation that the housing is sealed correctly. The trade-off is slightly longer setup time compared to simpler housings, but for many users this is offset by increased confidence when entering the water.
DiveVOLK follows a simpler, more traditional sealing approach. The phone is installed into a dedicated tray or adapter specific to the phone model, which then slides into the housing. The housing relies on a standard O-ring seal and mechanical latch system.
There is no pre-dive vacuum check or electronic leak warning system. This means the diver must rely entirely on careful O-ring inspection, cleaning, and correct closure of the housing before the dive.
The strength of this approach is simplicity and fewer components. The trade-off is that there is less feedback confirming that everything is sealed correctly before entering the water.
DiveVOLK also recommends removing any screen protectors from the phone before installation. Screen protectors can interfere with the touchscreen membrane and, in some cases, make phone removal difficult. This adds an extra step to setup and may be inconvenient for users who prefer to keep their phone protected outside of diving.
Phone compatibility
SeaLife uses a universal phone mounting system designed to work with a wide range of iOS and Android smartphones.
Phones are secured using adjustable grips, so the housing can often accommodate different models without additional adapters. This makes it relatively easy to switch phones over time.
The main limitation is overall phone size, and cases typically need to be removed before installation.
DiveVOLK also supports many iOS and Android phones, but uses model-specific trays or adapters.
When the correct tray is used, the phone fit is precise. However, switching phone models may require purchasing a new tray, depending on compatibility.
Controls: buttons versus touchscreen
This is the most obvious difference between the two housings.
SeaLife’s physical buttons are designed for underwater use. They work reliably with cold hands, gloves, and in current. For many divers, especially beginners, this leads to faster reactions and fewer missed shots.
DiveVOLK’s touchscreen is its standout feature. Being able to tap, swipe, and access the phone much like you would on land is powerful, especially for users who want to use specific camera or video apps. In practice, tapping generally works reliably, while swiping gestures can sometimes take a few attempts. This doesn’t make the system unusable, but it does mean touchscreen control underwater requires a bit more patience compared to physical buttons.
In practice:
- Touchscreen control offers freedom and flexibility
- Physical controls offer speed and consistency
Which one matters more depends entirely on the diver.
App experience and camera control
SeaLife’s app is designed specifically for underwater use and works in tandem with the housing’s physical controls. It provides direct access to core shooting functions such as photo and video modes, resolution and frame rate selection, digital zoom, exposure compensation, and dedicated underwater white balance modes. These white balance presets are intended to be used with or without colour correction filters and are optimised for common diving conditions, helping users achieve more natural colour without manual tweaking.
The interface is intentionally focused, keeping all key controls easily accessible on a single screen. This makes it easier for new users to concentrate on framing, timing, and buoyancy rather than navigating complex menus.
DiveVOLK does not limit you to a single app. Because the housing allows direct touchscreen access, users can choose between the phone’s native camera app, third-party photo apps, or advanced video apps with full manual control. This flexibility is appealing to divers who enjoy experimenting with settings, using specific workflows, or shooting video with more advanced control.
Handling and stability underwater
The SeaLife SportDiver housings are designed with a camera-style grip and balance, which many divers find comfortable when shooting video or taking photos for longer periods.
With DiveVOLK, handling depends more on how the housing is rigged and how comfortable the diver is interacting with the touchscreen while diving. Some divers enjoy the flexibility, while others prefer the simplicity of physical buttons.
For casual shooters, comfort and stability often translate directly into steadier footage.
Accessories
Accessories can make a big difference to what a smartphone housing can deliver underwater. Wide-angle lenses, filters, and macro options affect field of view, colour, and sharpness — but only if the optics are up to scratch and the mounting system is easy to use in real diving conditions.
DiveVOLK offers a wide range of accessories covering most use cases a smartphone shooter might want. These include wide-angle lenses, macro lenses, colour correction filters, and snorkelling dome lenses.
One of the more commonly used accessories is the red filter, which helps improve colour underwater by restoring some of the red wavelengths lost at depth. Depending on the setup, accessories can also be stacked, allowing divers to combine filters and lenses in a single configuration.
To attach lenses, trays, and other accessories, many setups require the DiveVOLK Expansion Clamp. This clamp adds mounting threads and attachment points, making it possible to use a wider range of accessories with the housing.
SeaLife offers a smaller but well-integrated range of accessories designed specifically for the SportDiver system.
These include colour correction filters such as the Bluewater, Greenwater, and Fluorescence filters, which are designed to work alongside the SeaLife camera app’s underwater white balance modes. SeaLife also offers wide-angle lens options and a 6-inch dome port that allows for wider shots and split-level photos.
For divers who want additional flexibility, SeaLife also offers a threaded lens adapter, which allows external optics to be attached to the housing.
Price and accessibility
One of the reasons the DiveVOLK SeaTouch 4 Max Plus is so popular is its price. It is widely available for just over £200, making it one of the more affordable smartphone housings capable of scuba diving depths. DiveVOLK SeaTouch 4 Max Platinum sits at a higher price tag due to premium materials and included mounting accessories.
The SeaLife SportDiver Ultra sits at a higher price point, reflecting its additional features and design approach.The SeaLife SportDiver S offers a lighter and slightly more affordable option within the same ecosystem, aimed at divers who want a simpler, travel-friendly setup.
Which one makes sense for you?
DiveVOLK SeaTouch 4 Max tends to suit:
- Divers on a tighter budget
- Those who want touchscreen access underwater
- Users who prefer using their own camera or video apps
SeaLife SportDiver Ultra tends to suit:
- Divers who prefer physical controls underwater
- Those who want a structured camera-style setup
- Users who prefer a dedicated underwater camera interface
Final thoughts
Smartphone underwater housings have opened the door for many divers to start capturing their dives without investing in a full underwater camera system.
Both the DiveVOLK SeaTouch 4 and the SeaLife SportDiver series offer capable ways to take your phone underwater, but they approach the experience differently.
DiveVOLK focuses on touchscreen access and flexibility, giving divers the ability to use their phone much like they would on land.
SeaLife focuses on a camera-style experience with physical controls, designed to keep operation simple and predictable underwater.
Ultimately, the best option depends on how you prefer to shoot and what kind of diving you do.
Shop Underwater Smartphone Housings Here
If you're thinking about taking your phone underwater, both the SeaLife SportDiver range and the DiveVOLK SeaTouch 4 series are worth considering. If you’d like advice on compatibility, accessories, or choosing between models, our team is on hand to help you pick the setup that suits your diving. Feel free to email us at support@mikesdivestore.com, schedule a video consultation, or drop by our Chiswick store for expert, face-to-face advice.
