Oscal Marine 3: 30-second review

The Oscal Marine 3 is a surprisingly stylish, slimline, rugged smartphone that breaks the usual design conventions. Gone are the cyberpunk-style, bulky rubberised outer casings; in their place is something a little bit slimmer and more refined in looks at least.

It is much simpler in design than its larger and heavier rugged smartphone counterparts. However, it does feature a technological illustration on the back plate, and the rubberised edges and corners, whilst not as dominant, are retained, highlighting that this isn't just a standard consumer phone but something altogether more rugged.

The phone is slim, and put side-by-side next to an iPhone 15 Pro, the actual thickness is pretty much identical, although it does feature a slightly longer screen, giving a bit more screen real estate for browsing the internet, answering emails and enhancing images.

Despite the slimline design being closer to consumer-level phones than rugged models, it is still fully waterproof. In testing, it was submerged for 10 minutes in a fast-flowing stream, then dropped and put through its paces to test its strength and ruggedness. Although it’s worth highlighting that the USB-C port at the base for data transfer and charging is open to the elements and this does caused me some concern.

The camera, both for daytime shooting and the infrared option, is on the whole pretty decent, not groundbreaking, and there's no cutting-edge imaging technology for the camera itself, although there are AI imaging Apps. They're just good standard cameras. Alongside the standard camera app, Oscal have included several AI applications, including ImageX. This offers impressive capabilities, but like all apps added to the standard DokeOS 5.0, after a few quick uses of the AI features, you're prompted to subscribe to the app's different AI models, and these all cost a lot.

Alongside the camera and imaging is a decent speaker which, considering its size, is surprisingly loud. Whilst it is a little bit tinny and requires a good shake after being submerged in water, it’s fine for listening to the radio whilst you work or for multimedia playback.

Through the test I found that the battery, whilst substantial, would last a good three days between charging depending on use, as long as I didn't use it too heavily for gaming or watching video. While it’s advertised as fast charging, the 18W charger takes around 2 hours to reach 50% from flat, which, by any standard, is not fast. However, a good overnight charge, and you're all set for another 2 to 3 days of solid use.

The main issue with this rugged smartphone, however, is the processor, which is behind what you'd expect for a modern smartphone despite it’s AI credentials. Switching between applications is often laggy, and the screen can become unresponsive when running more intensive applications such as Lightroom. The analysis time in Lightroom is significantly slower than I have seen with many other modern rugged smartphones, and whilst the device's design makes it desirable, the processor's speed does let it down.

In reality, whilst the slimline design makes for a quite appealing rugged smartphone, the processor speed does limit its use, apps just take that much longer to load, but once loaded they generally run fine. Whilst it has a relatively decent camera and runs most apps at a moderate speed, if you need it for anything more intensive, especially switching between apps, you will find its processing speed is limiting.

Because of that, it's unlikely to trouble the devices in our best rugged phone guide. Ideally, this phone is suited to someone who wants a relatively lightweight, slim, rugged smartphone that they just need for occasional calls and checking email.

Oscal Marine 3: Price & availability

• How much does it cost? $399
• When is it out? Now
• Where can you get it? Widely available

The Oscal Marine 3 can be purchased from Oscal's Amazon storefront via the website clicking here. It's currently priced at $400 / £400.

The rugged phone is also available from a limited number of alternative online stores, most notably in the US.

• Value: 2.5 / 5

Oscal Marine 3: Design

When I first opened the box and looked at the Oscal Marine 3, I was instantly struck by its slimline design and smartphone aesthetics. It was far nicer and easier to handle than most rugged smartphones. It also had a good premium feel and, whilst it is slimmer than most, it still has a good solid weight, and the overall design quality and build is exceptionally good.

Checking the phone itself, there’s a nice graphical detailing on the back that sets off the infrared, multi-AI cam, Infrared and main camera, whilst on the front, the surface is dominated by the large 6.56-inch 90Hz display with Selfi camera.

It retains the feel of many other rugged smartphones, with dimensions of 174.6 x 83 x 10.7 mm and a weight of 245 g. That's only just heavier than a standard consumer smartphone.

One of the other features that I liked about the phone from the outset was the number of physical buttons around the body. You have a customisable orange button alongside the microSD and dual SIM card slots on the left-hand side of the body. Then, on the right-hand side, you have the power button with fingerprint recognition, above which are the usual volume up and down buttons.

Otherwise, the rest of the phone is pretty simple, with just the main charging USB-C port on the base. Surprisingly, for a rugged smartphone, this isn't sealed, so it is open to the elements. During the test, I found this was something I had to watch out for, as mud and water can get into the port, and it can be a little tricky to clear it out.

One of the other features that I did like when using the camera was that you could assign that custom button as the shutter button, and this was especially relevant when using the underwater camera, as it essentially enables you to disable the touchscreen so that the physical button is used to operate the camera, which works extremely well.

Ultimately, this is a rugged smartphone designed to withstand the elements, and a key feature is its usual rugged certifications, including IP68, IP69K, and MIL-STD-810H, meaning it can be submerged in water and dropped from a height without too much issue.

• Design: 3 / 5

Oscal Marine 3: Features

The Marine 3 is one of a number of new rugged smartphones that feature AI abilities, and this is a big part of this particular model. Behind that 6.56-inch 90Hz HD display the phone runs Doke OS 5.0 based on Android 16 and there’s the AI Software suite known as Doke AI 2.0.

The ruggedness is obviously the top feature of this smartphone and with MIL-STD-810H certification it just means it can stand up to more than most consumer phones, so it can be dropped from height and, with IP68 and IP69K ratings, it will withstand being dropped into water and covered in dust and dirt without issue, making it ideal for anyone who works outside or is looking for a decent smartphone that will withstand the elements.

Whilst rugged smartphones aren't really known for the quality of their cameras, it's interesting to see that this model features a 13MP infrared night vision camera, accessible through the standard app by tapping the night vision icon, which swaps the main 16MP camera for the infrared camera.

The camera app also features an underwater camera mode that essentially disables the touchscreen and enables you to configure the physical button to operate the camera.

The main camera is 16MP, which is very conservative for a modern camera. However, given the resolution, the picture quality actually seems very well balanced, and on the front, there is, of course, a 13MP selfie camera for video conferencing and selfies.

The 6.56-inch IPS touchscreen has a maximum brightness of 450 nits, which is pretty decent for general use, though in bright summer conditions it might get a bit tricky to see. However, on the flip side, during winter, with modes such as Glove Mode 2.0, the screen is surprisingly responsive even with touch-sensitive gloves.

Through the test, one common rugged smartphone feature that I was pleased to see is the ability to configure the custom side key, setting is a quick access to an app or feature.

As a rugged smartphone, navigation technology is essentially although it is a bit surprising that it's only 4G and not the latest 5 G. However, it does feature four-in-one navigation with GPS, GLONASS, BDS and Galileo.

The company has also included a toolbox of handy apps, including the usual compass, protractor, plumb line, and many others, which are useful if you're working in a trade or just need a few extra tools out and about.

One of the phone's more quirky features is the Smart-K speaker, which is surprisingly loud and louder than my iPhone 15 Pro. It is a bit tinny, but at least you can hear it in almost any situation.

The battery is another big part of any rugged smartphone, and here, with a 5000mAh battery, it supplies plenty of power for general phone use. It also offers fast charging. That battery will enable up to 6 hours of gameplay, 6.5 hours of video, 11 hours of web browsing, 22 hours of making calls, 25 hours of listening to music, and 288 hours on standby. There's a deep power-saving mode that works automatically in the background.

The phone does support reverse 5W charging, which means that if you have other mobile devices or electronics that need a charging boost, then this phone can act as a power bank.

The phone runs Doke OS 5.0, based on Android 16, and offers a good number of built-in apps, including all the usual Google options. There's also plenty of AI-powered features, including several bundled apps and a very decent system manager that enables you to free up space and keep the smartphone optimised. I also like that it features Notebook 3.0, which lets you easily keep notes and other content on your smartphone neatly organised.

Alongside the main OS, there’s Doke AI 2.0. This essentially offers DeepSeek-R1, ChatGPT-4o Mini, Gemini, Hi Doki, ImageX, Vidgen and Soundle. Whilst some of the features are free, given the processor speed, they all run surprisingly quickly, the only thing to watch out for is that some of these apps require a subscription after a certain amount of use. Many of those subscription values are expensive.

Whilst the AI apps do make your AI tasks that much easier they can come at quite a cost which is something to be aware of if they are of interest to you.

At the heart of this phone is the MediaTek Helio G81 processor, backed by 24GB of RAM (8GB + 16GB expandable), giving it plenty of memory to handle data. When it comes to storage, there's 256GB of ROM built in, and you can expand it to 2TB via a TF or microSD card.

No rugged smartphone would be without dual SIM support, and in the carrier tray, you can pop in two 4G SIM cards alongside a TF card to boost the storage. Other connectivity options include NFC support, so if you want to use contactless payment, then that's perfectly possible with this phone, along with Wi-Fi and Bluetooth 5.0.

• Features: 3.5 / 5

Oscal Marine 3: Performance

The Doke OS, which is based on Android 16, is really well thought out, and there's plenty pre-installed to get you started, including the Doki and its selection of AI applications alongside what you usually expect from Google.

One of the first things I noticed about the phone, while running through some tests and opening some apps, was that app load times were relatively slow. They weren't instantaneous on opening and, when switching between applications, there was often a slight pause as the phone seemed to need time to catch up.

However, once the applications were open and I started to delve into their use, things started to smooth out. Looking at Google's suite of applications, including Docs and Sheets, both opened relatively quickly, and making adjustments to existing documents or adding to them was all relatively straightforward.

Likewise, opening Gmail and answering a few messages proved that this phone was more than fast enough for general day-to-day calls, email browsing, and using lighter apps.

As I progressed through the test, the fact that I was reverting to a standard 4G connection rather than 5G became an issue. Around my office, where generally we just get 4G, the speeds were okay, a little bit slower compared with my iPhone 15 Pro, but as soon as I went up to Salisbury, where 5G coverage is relatively good, the slower data speeds were very apparent.

The other point here was that whilst I'd expect those data speeds at 4G to be pretty solid in 4G-only areas, they were still slightly slower than on my iPhone 15 Pro, reaching a maximum of 20 to 30MB per second compared with the iPhone 15 Pro at 30 to 40MB per second.

As I started pushing the phone a little more, first using Lightroom, I was surprised by how long it took the app to load. Once it had loaded, I was able to access the image files on the phone and load them in, and again, it took a while for Lightroom to run through its standard analysis before I could start making any adjustments. Each image would take at least 20 to 30 seconds to properly load and be analysed before those adjustments could be made. However, once the phone had run through its assessment, all additional adjustment work were instantaneous.

I then decided to use CapCut. Using video footage taken from the phone, edits were relatively quick, and the phone responded well to putting together a short production. However, again, when loading CapCut and sometimes loading those video clips, there was a slowdown in processing, and whilst when everything had loaded things were quick and responsive, you just have to be patient while the phone catches up.

I then switched over to the Doke AI suite of applications, and here the phone seemed to handle them much better, applying AI enhancements to existing images and generating AI content. However, as I've witnessed with these Doke AI apps before, you only get a few uses before you're charged a monthly or yearly fee to continue using them. Whilst there are offers, it does feel like a bit much to pay such an amount per app rather than having a longer trial period for each.

One of the final tests was just to check how the phone would perform for gaming, and I was actually quite surprised by how well it handled games like Asphalt Legends, with relatively smooth gameplay and decent audio from the internal speaker.

In many more advanced games, the loading times are excessive. Once it's all loaded into the system however, the gameplay is relatively decent, and what really stands out here is that the speaker is far higher quality than I've come to expect from most smartphones, although again it's still a little tinny.

Checking out all the benchmarking tests again just re-emphasised that this is a good, solid smartphone for day-to-day use, as long as you don't want to run too many apps or play some of the more advanced games. Also, for almost any app you open, load times can be relatively slow, so in reality, this phone is best used if you want a slimline phone for making calls, using a few apps, and surviving out in the elements.

The final test was to check out how rugged this smartphone is, leaving it in a stream for 10 minutes to see if it would survive being submerged. Here, it had absolutely no issues whatsoever, with my only concern being that the USB-C port is exposed. During the test, as I started dropping it into muddy water and dirt, debris got into that port. At one point, it made it difficult for me to actually plug it in to recharge.

• Performance: 3 / 5

Oscal Marine 3: Final verdict

At the end of the test, whilst I like the phone's design, there are quite a few quirks. At the same time, the fact that applications take quite a long time to load is a bit of an issue, especially as it seems to take a long time to analyse images, video, and other data.

Even when switching from one Android app to another, there can sometimes be a glitch or delay, and what really bugs me beyond anything else is that many of the apps are tied to advertising, so you can tap a functional feature and find yourself on the Temu website without warning. Some of the other apps will open up other subscription offers and models when all you want to do is get on and use the phone.

If you're after a straightforward phone with some AI enhancement, then this is an okay option. If I were going to buy this, I would probably suggest removing most of the AI-enhanced apps, since the subscriptions are expensive and they tend to redirect you to shopping websites.

There's also the issue that it's only 4G, not 5G, and everything is just a little bit sluggish. Another major issue is the price. At nearly £399 / $399, this isn't a cheap phone, and in reality, there are many other options out there that provide far greater processing power for a lot less money. Really, you're paying that much for rugged credentials rather than performance.

Should I buy an Oscal Marine 3?

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For more durable devices, we've tested and reviewed the best rugged laptops and best rugged tablets.

Oukitel Industry RT10: 30-second review

The Oukitel Industry RT10 is the latest in the company's line of rugged tablets, and with a large 11" FHD screen, tough design, 5G connectivity and a barcode scanner built in, it instantly looks set to impress.

Sure enough, getting started with the tablet is straightforward, and once Android 15 has run through the final stages of setup, you can delve straight into the usual Google Workspace applications.

The large screen is instantly pleasing with a relatively decent brightness that makes it clear to see in bright conditions. The resolution for this size of screen is, however, limited to FHD. So, while the screen is pleasing to look at, the resolution is relatively low, resulting in workflow applications such as Google Docs and Sheets feeling a little more cramped on screen than you might expect for the size of the screen.

The touchscreen is good and responsive, and while that responsiveness is affected by moisture, through the test, it proved to be solid in performance. The only other slight quirk with the screen is that the surface is quite reflective, so while the display is clear, those reflections can be troublesome out in the field.

In use, the Google apps all work smoothly, as does browsing the internet both through the WiFi signal and when connected to a 5G network using a Vodafone SIM.

While general performance is good, as soon as the mid-range MTK Dimensity 7400X processor is pushed, the performance starts to drop off. Adobe Lightroom runs fine and is generally fast, but as you start to push the system with complex video edits in CapCut or playing graphically intensive games, you will start to see the limits of this tablet. Straight CapCut edits with footage shot on the phone, however, are fluid enough.

Where this tablet really excels is with its rugged credentials. It survived some time underwater, being dropped, and left out in the rain with no adverse effects on performance or functionality.

The battery life was also exceptionally good, with the 25,000mAh battery keeping the tablet powered for several days between charges with mid to heavy use. There's also a dedicated barcode scanner on the side unit. This has been designed to work with dedicated industry apps and isn't an out-of-the-box solution. Essentially, Oukitel has supplied the industry hardware; you need to provide the software solution for your business.

If you need a robust tablet for work and don't need cameras or huge amounts of processing power for anything more than evaluating documents, getting online, and sending back site images, the Oukitel Industry RT10 is one of the best rugged tablets in its price range.

Oukitel Industry RT10: Price and availability

• How much does it cost? $1299 / £949 RRP
• When is it out? Available now
• Where can you get it? You can get it directly from the Oukitel website

The Oukitel RT10 Industry is currently available directly from the manufacturer's website here - retail price is $1299 / £949, but it's currently on sale for $999 / £730 until February 16.

• Value: 4 / 5

Oukitel Industry RT10: Specifications

CPU: MediaTek Dimensity 7400X
Graphics: Mali-G615 MP2
RAM: 16GB
Storage: 512GB
Left Ports: USB-A, RJ45
Right Ports: USB-C, SIM tray
Connectivity: 5G, WiFi 6, NFC, Fingerprint reader
Audio: Unspecified (likely mono or stereo)
Camera: Rear: 64MP + 20MP + 5MP / Front: 32MP
Size: Approx. 11-inch screen; weight TBC
OS Installed: Android 15

Oukitel Industry RT10: Design

• Robust
• Touch Screen
• Bar Code Scanner built in

As you'd expect from a rugged tablet, the design and build all support this device being used in situations that would ordinarily see any other tablet break. The outer edges are reinforced with rubberised plastic, and the overall design mixes metal panelling and tough plastic to ensure a robust build designed to be ready for any environment.

While most tablets are slimline and feature a stylish, minimalistic look, the Oukitel Industry RT10 is somewhat more bulky. The mix of rubber, metal, and plastic enables a far easier grip on the exterior and ensures that, whatever the weather, you'll always have a good purchase on the casing. When it comes to size, it measures 266.5 × 178 × 22.5 mm and weighs 1.28 kg, substantially more than most.

While my review sample arrived as just the tablet, as with previous iterations of the Industry RT range, there will be cases and other accessories available. A row of Pogo Pin contacts along the base makes it likely that a keyboard will also be an optional accessory.

The front of the RT10 is dominated by the large 11" screen with FHD resolution. Whilst this is lower than most modern tablets, it's around average for this style of tablet.

Taking a look around the tablet body, on the first of the longer edges, there's a USB-C port for data and charging alongside a 3.5mm audio jack for headphones; both of these ports are covered by a rubber flap to stop water ingress. Next to these are the TF/MicroSD and SIM card slot.

On the other side is the barcode scanner, microphone, two multifunctional buttons that you can assign your own apps or functions to, volume up and down, and the power/biometric fingerprint button.

On top, there's a LAN port, which is unusual for a tablet but reinforces the industrial use, and a USB Type-A port. Finally, on the side is the POGO pin contact interface for connection to accessories such as a keyboard.

On the back of the tablet are two large speakers, an industrial fingerprint scanner, again, as with the barcode scanner, dedicated software is required, a main camera, a macro camera, and a night vision camera.

There's also an NFC contact point for wireless communication between devices.

While the tablet is large and bulky, it is comfortable to hold, and in the box, along with the tablet, is a metal handle that can be easily attached.

• Design: 3.5 / 5

Oukitel Industry RT10: Features

This is a tablet that has a focus on industrial use, with barcode and finger print scanners, cameras, a battery, LAN ports, and SIM card compatibility, fulfilling a feature set that will be required by anyone working on site. The tablet is also IP68/IP69K certified, so if you get caught in the rain or even drop this tablet into a puddle, it's fully waterproof.

Taking a look at the hardware, inside the heart of this RT10 is a Dimensity 7300 SoC CPU, coupled with a Mali-G615 MC2 GPU. This combo is decidedly mid-range, so while it should provide the power required for work-based apps, for anything that requires more graphics or processing power, it is likely to struggle.

The CPU and GPU combo is backed by 16GB of 3200 MHz RAM and 512GB of internal storage, and you can boost this with a 1TB MicroSD card.

One of the big features of this tablet is the battery capacity at 25,000mAh, which will keep this tablet running without issue for a full day's work and performed impressively throughout the test. This battery also supports up to 33W fast charging.

Connectivity is a major factor in this tablet. As well as WiFi 6, it also supports 5G with a SIM inserted. Through this test, I utilised a data SIM with unlimited data and no cap to maximise the full potential of the tablet.

As well as the more standard features of a tablet computer, the RT10 includes a few additions that tailor it to industry. These include the fingerprint scanner on the back, the barcode scanner on the side, and the RJ45 Ethernet port at the top. This means that if you're gathering on-site data or running industrial software, this tablet is designed to easily integrate into your workflow and bespoke software.

Supporting the hardware is an array of three cameras, main, macro, and night vision, which again have been designed for data capture, on-site images, and recording, rather than for content creation.

• Features: 4 / 5

Oukitel Industry RT10: Performance

Disk Speed Read: 2032 MB/s
Disk Speed Write: 449 MB/s
Geekbench CPU Multi: 3161
Geekbench CPU Single: 1021
Geekbench GPU: 2504
Solar Bay: N/A
Slingshot: 7165
Slingshot Extreme: 5361
Wild Life Extreme Overall: 3296
Wild Life Overall: 3303
Steel Nomad Overall: 359

While other rugged tablets are a blend of consumer and industrial, with simply the rugged outer shell differentiating them from standard devices, the RT10 is very different when it comes to some of those added extras such as the scanners and ethernet port.

The design and aesthetics are, however, very stereotypical of the genre, with large rubberised corners and a mix of metal and plastic that make it heavier and bulkier than its consumer equivalents.

It feels solid, and throughout the test I dropped, submerged, and left it in the rain, all of which had little effect on the actual working of the device. It is simply designed to withstand a lot more than most. However, as so often with the design of these rugged tablets and phones, there's just a bit too much styling. The metal grids that protect the speakers on the back are a catch-all for mud and grit, and even after a good clean, it was nearly impossible to fully rid them of dirt.

While the mud encrusted on the back doesn't affect performance, it just feels like a bit of an oversight for something that's designed to be used outdoors.

The exterior has a few additional features that make it very handy, including a large camping-style light on the back. This kicks out plenty of illumination and is great for ambient lighting. It's similar to the lights that have been appearing on the backs of rugged smartphones over the past few years and is a welcome addition.

The array of cameras is also useful and very functional. It's worth noting that there's a professional edge to these, while they're good, they're designed for documentation rather than creative endeavour. Essentially, they're fine for taking images on site, and quickly enhancing those images using Lightroom was all smooth, with the CPU and GPU handling the image data without issue.

Likewise, the video quality is OK, with definition and clarity looking good in bright conditions, but struggling under lower light. The footage can appear grainy and lack detail. Again, in bright conditions, the quality is good enough for site visits and recording rather than content creation.

While shooting video, I was interested to see how the tablet would handle light video editing using CapCut. As the application is highly optimised, editing footage shot on the tablet was smooth, and effects could be applied with ease. This footage was all HD, so far from taxing the mid-level processor.

Moving to more everyday use, the tablet handled Google Docs and Sheets with ease. It's a bit of a shame that the screen is limited to FHD resolution, as while that does make everything nice and easy to read, it doesn't offer much screen real estate for navigating documents.

Through daily use, the battery life stood out. As I shot video and images, edited, browsed the internet, and answered emails, the battery slowly depleted. But used over an average working day, it should be more than enough to last several days between charges under intensive use.

Some of the more industry-focused features, such as the barcode scanner on the side and finger print scanner on the back, will need compatible software in order to function. Unfortunately, there's nothing installed on the tablet by default that enables this feature and most off the shelf apps tried wouldn't recognise the scanners as a more bespoke solution is required.

Overall, for a rugged tablet, the focus here is very much on industry, with solid all-round performance when it comes to computing power and additional specialist features that will appeal in certain sectors.

• Performance: 3.5 / 5

Oukitel Industry RT10: Final verdict

There are plenty of rugged tablets on the market, many offering individual features that stand out to very specific market sectors. The RT10 is a great example of a rugged tablet with a very defined audience, with the barcode scanner on the side and finger print scaner for security on the base, which, with the correct app installed, enables fast scanning and data collection.

The fact that it has a decent array of cameras, mid-range processing power, and a LAN port, as well as the ability to utilise both WiFi and cellular networks, makes it an extremely versatile option for a multitude of industries.

While throughout the week of use, there were plenty of features I liked about this tablet, I was disappointed by the lack of screen resolution. While the screen is bright and crisp, at this size, it makes the contents appear overly large, resulting in Google Docs and Sheets feeling bigger on screen than they need to be. That said, it does have the side effect of making everything very easy to read and edit.

The barcode scanner is a major feature of the tablet, but with no app installed or option to activate it in available apps, it looks to be a feature that needs to be integrated into custom applications or enterprise-level software. During the review, I tried several standard solutions but was unable to get the scanner to activate.

Likewise, the computing performance is mid-range, but for a tablet aimed at the commercial sector, the fact that it handles workflow apps smoothly while struggling a bit with higher-end graphic processing isn't an issue.

For more intensive apps, such as Lightroom and CapCut, that use images and video shot on the tablet, it handles the data with ease. Essentially, if you're recording on-site imagery, this is a great solution if you're wanting a rugged tablet for content creation then it's not.

If you need a rugged tablet that can be used in the field, withstands more than most, has a dedicated barcode reader, LAN port, and a battery life that far exceeds the longevity of most tablets, then this is a great option.

Should you buy an Oukitel Industry RT10?

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