Oukitel WP500 Ultra rugged phone review | Tech Radar

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Oukitel WP500 Ultra review: A flagship rugged phone with a unique thermal camera — but also an inflated price

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The WP500 Ultra lives and dies on the thermal imaging, because the rest of this device couldn’t possibly justify costing

+The 640x 512 thermal camera is class-leading in resolution

The 640x 512 thermal camera is class-leading in resolution

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Oukitel has plenty of mid-tier phones, but it’s always interesting to see what it comes up with for a flagship release.

The WP500 Ultra brings a 640 x 512 thermal camera, a hardware privacy kill switch, and a Dimensity 8300 chipset into a single package. Most of those things aren’t gimmicks and are potentially useful to the right buyer.

This design packs a punchy So C with a good GPU and NPU in the package, plenty of RAM, tons of storage, and a decent camera cluster. But at the asking price of nearly $700, you might reasonably expect that, and possibly more than the 10000m Ah of battery.

But the headline feature here is the AI thermal imaging solution using Smart Clear Therm and Scene Sync Fusion. This produces remarkably detailed thermal images and video.

For those professionals who want a rugged worksite phone that does most things, the Oukitel WP500 Ultra ticks plenty of boxes. But the asking price still seems a little on the high side for a company that makes some excellent $200 rugged phones.

The only thing stopping this from being one of the best rugged phones we’ve tested this year is the price.

Where can you get it? Direct from the maker or via an online retailer

The Oukitel WP500 Ultra launched with an MSRP of

I do hope those lower prices stick a little, because north of $1,000 seems excessive even with these specifications.

At this price, the hardware package is genuinely strong. A Dimensity 8300, 1TB of storage, and a 640 x 512 thermal camera at under $700 would have been exceptional by 2024 standards. And, in the middle of 2026, the price point remains an important factor.

The caveat is that the specialist features inflate the cost relative to buyers who do not need them. A user who wants only a fast, durable, rugged phone can spend less and get a comparable daily-use experience. The WP500 Ultra makes the most sense for buyers who will actively use the thermal camera and the special privacy switch.

To a certain degree, Oukitel is competing with itself for rugged phones with thermal cameras, since they also have the WP61 Ultra. That design costs about $30 less and has double the battery capacity, but that comes with a weight and size penalty.

A phone with thermal vision is the AGM G3 Pro, which sells for the same price, but has less storage, a less powerful So C and a lower thermal resolution.

If you just want thermal vision and don’t care about the resolution of the sensor, Blackview still makes the BL9000 Pro, which can be found for as little as $550.

Overall, the Oukitel WP500 is offering a better platform than the majority of competing options, but matching their price isn't easy.

IP68 IP69K dust/water resistant (immerse up to 1.5m for 30 min), MIL-STD-810H Certification

IP68 IP69K dust/water resistant (immerse up to 1.5m for 30 min), MIL-STD-810H Certification

108MP Samsung S5KHM6 + Samsung 8MP S5K4H8 Night Vision/Mix + Thermal AI sensor

108MP Samsung S5KHM6 + Samsung 8MP S5K4H8 Night Vision/Mix + Thermal AI sensor

10,000 m Ah battery (Max 33W charge wired, 7.5W Reverse)

10,000 m Ah battery (Max 33W charge wired, 7.5W Reverse)

There is no pretending the WP500 Ultra is anything other than an industrial tool. It is big, heavy, and it is built to take punishment. At 414.3g and nearly 23mm thick, this is a device that earns its keep rather than lives in your pocket unnoticed.

The chassis is reinforced polymer with rubberised grips along the sides and corner armour that looks like it means business. It does. The thermal camera module dominates the rear panel. It is the largest single element on the back of the device and leaves nobody in any doubt about what this phone does for a living. Unless they mistake it for a speaker.

Oukitel has covered all the certification bases. IP68 handles immersion to 1.5 metres. IP69K adds resistance to high-pressure water jets at close range. MIL-STD-810H extends protection to extreme temperatures, shock, vibration, and altitude. That is the full rugged stack. Nothing has been left out.

The screen is covered by Corning Gorilla Glass 5 at 1.1mm. That is a sensible, honest choice. The privacy kill switch sits alongside the standard power and volume controls on the chassis. Its position matters. It needs to be reachable with gloves on, and Oukitel appears to have thought about that.

However, the phone comes with a bumper that left this reviewer entirely confused. In other Oukitel phones I’ve seen recently, a soft TPU bumper was included, but this is a hard, rigid plastic that is as likely to transmit any shock it receives to the phone as it is to protect it.

There is another issue with this bumper that I’ll discuss in the camera section, which might encourage many to dump it.

Where Oukitel haven’t wandered off the rugged phone highway is with the button layout, which has all the usual suspects located where you might reasonably expect them.

The one exception to this model is an extra button that Oukitel amusingly labelled as the “Anti leakage button” and also as ‘the one click encryption button’, or even ‘Privacy kill Switch’, depending on where in their documentation you look.

So what does it actually do, you might reasonably wonder? According to Oukitel, “A single slide instantly disables cameras, microphones, and GPS, preventing photos, videos, audio, and location data from being captured. Ideal for sensitive meetings, confidential work, and situations where privacy matters most.”

My immediate reaction is that it’s a feature someone involved in a criminal enterprise might like, but it makes almost no sense in a business context. Because if you are your worst security threat, and record conversations and take pictures in sensitive meetings, then you’re probably not going to click this button to stop yourself, are you?

And if the phone is doing all these things on its own because it’s been compromised by malware, then that’s probably disabled the button anyway.

Oukitel promises peace of mind with this feature, but presumably only if you don’t think about it.

Other aspects of this design seem better considered, especially the screen.

The 6.78-inch panel runs at 1080 x 2460 with a 120 Hz refresh rate. Those numbers sit comfortably alongside mainstream mid-range phones. That is exactly where you want a rugged display to be in 2026. Peak brightness comes in at 550 nits. It is adequate for most conditions, but in direct sunlight, it will test it severely.

As for the rest of this design, there are a few things that look a little rushed or that ended up entirely omitted. On the rushed side are holes for a lanyard, where one isn’t included in the box. And missing in action are a headphone jack and a Micro SD card slot.

What’s truly odd about the Micro SD card situation is that on Oukitel’s specification, it mentions storage expansion being a 2TB TF card. But unless I’m being remarkably dumb, there is no place for this to go. The SIM card tray is incredibly small and only carries two Nano SIMs back-to-back. If this phone does take a memory card, I’m interested to know where it goes.

Those points aside, the design of this phone isn’t terrible, but a few things, like the misplaced features and issues with the bumper, do hint that it might have been brought to market at such a pace that didn’t allow these details to be ironed out.

The Dimensity 8300 is the right chip for a phone at this price. It is built on TSMC's 4nm process, uses Armv 9 CPU cores, and pairs with the Mali G615 GPU. Benchmarks from other devices using the same chip place it ahead of the Snapdragon 778G and close to the older Snapdragon 8 Gen 1 in sustained loads. This is not a mid-range chip in a rugged case. It is a proper performance part.

Previous Oukitel flagships relied on the Helio G99 or Dimensity 7050. Both chips did their jobs. Neither came close to the 8300. The step up here is real, and it shows in everyday use.

I’ve yet to test a device using the new 9000 series chips, which can use 10667 MHz RAM, but until those become more common, chips like the Dimensity 8300 are a solid choice for both compute and graphics.

The 12GB of LPDDR5 RAM is the honest figure to focus on. Some listings inflate RAM numbers by using virtual memory expansion, which uses storage space rather than physical chips.

Oukitel are one of these, putting 36GB in big letters on the box, and then in a much smaller font 12+24GB below. Yes, you can map 24GB of storage as if it were memory, and with 1TB, you have plenty to spare, but it doesn’t mean this phone has 36GB.

Anyway, 12GB physical is a good number for this category, and it will handle multitasking and demanding applications without complaint.

The 1TB of internal storage is where the WP500 Ultra genuinely pulls ahead. That capacity rivals that of a budget laptop and gives field professionals ample room for thermal imaging, 4K video, and documentation without worrying about running out of space for some time.

Unless weight is a big priority, a 10,000m Ah battery is expected at this level. What changes the runtime picture compared with older rugged phones is the chipset. The Dimensity 8300 is a 4nm part, and it is noticeably more efficient than the 6nm and 7nm designs it replaces. That efficiency advantage compounds across a full working day, allowing the WP500 Ultra to perform more and extend its running time significantly.

The 45W wired charging is acceptable, and better than some 33W options we’ve seen elsewhere. Filling a 10,000m Ah cell from flat at 45W takes close to two hours and fifteen minutes. Some competitors at this price point have moved to 66W and above, but even with 45W, you can get the battery half full in around thirty-five minutes from flat.

Sadly, there is no wireless charging, and Oukitel could reasonably have done better here given the asking price.

The quoted video playback time is 15 hours, and the standby is a whopping 1754 hours, or just over 73 days.

Some will wonder why it doesn’t have a 20000m Ah battery, but that would have elevated the weight closer to 600g, and 414g is enough without making it entirely impractical to carry.

Rear camera: 108MP Samsung ISOCELL S5KHM6, Samsung 8MP S5K4H8, Thermal AI sensor Front camera: 32MP Sony IMX616

This camera arrangement can be confusing, especially from the Android 16 OS perspective.

If you ask the phone how many camera sensors it has, it will tell you it has five, not four, but it's obvious, examining the cluster, that there are three cameras on the rear, and another on the front.

The confusion comes with the 8MP S5K4H8, because the phone thinks it has two of these, where in reality it has one pulling double duty. Normally, it is a night vision sensor that uses infrared to illuminate the darkness and capture images.

But it also provides a source for the thermal camera to mix into its data to improve the detail and context of its thermal image captures.

This is where the WP500 Ultra makes its case. A 640 x 512 thermal camera is the highest resolution sensor currently found in a rugged smartphone. The AGM G3 Pro sits at 512 x 384. The Blackview BL9000 Pro manages 160 x 120. Oukitel leads the segment on this single metric, and the gap is not small.

Resolution tells part of the story. NETD tells the rest. The WP500 Ultra claims a figure below 50 millikelvin. NETD measures thermal sensitivity. A lower value means the sensor can resolve finer temperature differences, which produces more useful images in real conditions. The stated accuracy of plus or minus 2 degrees Celsius is standard for sensors in this class.

Two AI processing layers sit on top of the raw sensor output. Smart Clear Therm handles image enhancement. Scene Sync Fusion attempts real-time scene interpretation and object classification.

The problem here is that I’ve no idea what the actual sensor is, because Oukitel haven’t divulged that. And, it might be that what I’m seeing is 320 x 256 thermal data that is then AI processed with the 8MP data from the S5K4H8. That said, however these results are achieved, it looks remarkably good in my examples.

The practical applications are genuine. Electricians finding overheating components, surveyors checking insulation continuity, security professionals detecting heat signatures, and maintenance engineers spotting failing machinery before it breaks are all realistic use cases for this technology.

If you want to take ordinary pictures, the 108MP Samsung ISOCELL S5KHM6 is a stalwart, delivering great colour-balanced images that are sharp and have a great dynamic range even without HDR turned on.

However, it was when I was taking night vision images that I ran into some issues, specifically in relation to the hard plastic bumper.

It appears that the IR lights used to illuminate scenes interact with the bumper, causing it to emit or refract light back into the Samsung 8MP S5K4H8. This causes odd reflections and smears that can clearly be seen. In one of my example images is a printer, and there is one of these aberrations crossing over it. Once I removed the bumper, these went away, and the images had significantly more contrast.

This is clearly a problem Oukitel overlooked, and those who use the night vision mode will need to ditch the bumper and find something else.

To finish on a high note, Oukitel used some of the asking price to cover Widevine L1 certification. That means Netflix, Amazon Prime, and Disney+ deliver full-resolution content rather than a downgraded stream. For professionals on extended deployments who want something decent to watch in the evening, it is a useful detail.

Initially, I was going to compare the WP500 Ultra with another phone that had thermal credentials, but my tests don’t cover that aspect, so I went with a different approach.

From the same brand, the WP210 has similar specifications but a smaller battery and no thermal camera. The smaller battery sheds 25% of the weight, though the Dimensity 8200 isn’t far from what its 8300 brother offers at computing tasks.

Where the 8300 excels is with its GPU, which, in a few tests, was 70% quicker at Open GL and Vulkan. But deep diving into the data I captured when I tested these phones, the GPU improvements mostly come from the memory model each phone deploys.

On the WP210, the average memory latency was 42.5 ns, and database operations were 55,8 KOps per second, whereas on the WP500 Ultra, those numbers were only 32.7ns latency and 228 KOps per second. Those memory enhancements, coupled with the 4th Gen Valhall architecture improvements in the Mali-G615 MC6, explain why the 8300 is that much better at graphics than the 8200.

While the battery life looks similar, as I recall, the WP210 was completely exhausted at 22 hours and 44 minutes, whereas the WP500 Ultra still had 19% capacity left. That implies another 4 or more hours of runtime to completely empty the battery.

A slightly sobering point is that you can get the WP210 direct from Oukitel for

The Oukitel WP500 Ultra is a phone with a clear identity. It knows exactly who it is built for, and it does not try to be something else. The thermal camera resolution leads the segment, and the hardware kill switch is a unique feature in consumer smartphones.

The Dimensity 8300 and 1TB storage give it a performance foundation that most rugged phones cannot match.

The price is the problem. At $699.99, the WP500 Ultra faces serious competition from the AGM G3 Pro. Both offer compelling alternatives for buyers who do not need a hardware privacy disconnect. Oukitel wins on specialisation. It loses on the value aspect for the general buyer.

For professionals who regularly work with thermal imaging, operate in environments where hardware privacy controls are not optional, and need a rugged phone that can keep up with serious workloads, the WP500 Ultra earns its price. For everyone else, the AGM G3 Pro is the smarter spend.

One thing needs resolving before any enterprise buyer commits. Oukitel must confirm its software update policy. Seven years is the benchmark. Anything less at this price needs to be disclosed clearly and reflected in the final recommendation.

That said, no other phone matches 640 x 512 thermal resolution at this cost. The Dimensity 8300 is genuinely fast, and the 1TB of storage is exceptional. For professionals who will use those tools every day, these features might justify the outlay. For everyone else, there might be cheaper alternatives elsewhere.

Not a cheap phone, but the thermal vision system justifies some of the cost.

Not a cheap phone, but the thermal vision system justifies some of the cost.

Not a radical departure, but there are some missing features.

Not a radical departure, but there are some missing features.

Powerful So C, 1TB of storage and 10000m Ah of battery

Powerful So C, 1TB of storage and 10000m Ah of battery

Decent performance and efficient use of the battery

Decent performance and efficient use of the battery

Great features, an annoying bumper, but the price is too high

Great features, an annoying bumper, but the price is too high

You need thermal imaging This is the highest thermal resolution available on a smartphone, though some of this might be AI-enhanced from lower-resolution data. But it's good for thermal work, unless you need a macro for electronics work.

You can make sense of the privacy kill switch Not leaking critical information from private meetings is something many in business would find an important feature. However, the button doesn’t stop anyone else from doing it around you, so it might not have the impact you want.

You travel light For some, a phone weighing more than 400g is a practical dealbreaker, and the size of this one won’t allow it to fit in a trouser pocket.

You need a Micro SD/TF card While the WP500 Ultra does have 1TB of internal storage, you can’t expand this with a memory card like most other rugged smartphones. If you use these cards to capture images and video and then store them, you will need to come up with a different approach.

Ulefone Armor Mini 20 Pro Another practical, rugged design with an inbuilt camping light, night vision camera and about 60% of the battery capacity of the WP500 Ultra. It’s cheap, but conversely, the cameras aren’t as good, and the So C isn’t as powerful. For those needing a cheap, tough phone, the Ulefone Armour Mini 20 Pro might be a good choice as it's easily pocketable.

AGM G3 Pro A slightly lower-spec phone that uses the Dimensity 7300 platform and has a 512 x 384-resolution thermal camera. However, the trade down in hardware knocks about $70 off the cost of the WP500 Ultra, and it weighs less, too.

For more ruggedized devices, we've reviewed the best rugged tablets, the best rugged laptops, and the best rugged hard drives

Mark is an expert on 3D printers, drones and phones. He also covers storage, including SSDs, NAS drives and portable hard drives. He started writing in 1986 and has contributed to Micro Mart, PC Format, 3D World, among others.

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• Oukitel WP500 Ultra review: A flagship rugged phone with a unique thermal camera — but also an inflated price

• When you purchase through links on our site, we may earn an affiliate commission