Two-minute review

In recent months we’ve covered the Ulefone Armour 16 Pro, 17 Pro and here now, the 18T.

It would be easy to conclude that the numerical progression was a ladder of performance specifications, but that would be an oversimplification.

There aren’t many similarities between this and the 16 Pro and the 17 Pro, although the 18T does borrow some features from its predecessor.

For those curious, there is a cut-down Power Armor 18 and also a new Power Armor 19 design, but the 18T is still the flagship of this series, in our opinion.

Where the 16 Pro was a relatively inexpensive design with an underpowered SoC, the 18T is a high-powered solution with a premium phone price tag.

With a retail cost of $570, phone buyers expect plenty for their money, and the 18T has the best specification we’ve seen from Ulefone so far. 

Where the 19 uses the less expensive MediaTek G99 SoC, the 18 and 18T use the 5G capable MediaTek Dimensity 900 SoC, delivering more processing power and double the GPU performance of the G99.

The choice to go with the Dimensity 900 is probably more about 5G coms than anything else, but having this power is also helpful for the FLIR thermal imaging sensor.

We’ve seen thermal imaging before on the Cat S63 Pro, and this is the same FLIR 3.5 that is on that phone. Very often, rugged phone makers use the cheaper FLIR 2.5 sensor, which was on the CAT S60, Ulefone Armor 11T 5G and Blackview BV9800 Pro, to mention just a few.

On this phone, the newer FLIR 3.5 sensor offers a better resolution, achieving greater detail and clarity in the images it captures.

The other notable feature of this design is that it has the same accessory port as the 17 Pro, and through that, there are various specialist accessories available, including an endoscope.

When you combine the ability to detect temperature distribution and having an endoscope to look at difficult-to-reach areas, the 18T starts to look like it might be ideal for those in automotive repair or similar businesses.

The downside to having such a powerful SoC and feature set is that this is the most expensive rugged design that Ulefone makes. The 18T is priced as a premium phone, and the customer mostly gets premium parts for their investment.

As this is most likely to be a second phone for most customers, is that just too much to be a practical consideration?.

Ulefone Armor 18T price and availability

• How much does it cost? $570/ £620/ $AU $880
• When is it out? It is available now
• Where can you get it? You can get it in most regions direct from AliExpress or on Amazon.co.uk

In addition to the phone, Ulefone has a selection of accessories that can be bundled. A case increases the cost by another $25, a Wireless charging base by $25, an Endoscope by $50, and a 1000x Digital Microscope is another $50. The cheapest upgrade is a tempered glass screen protector that costs just $10 when bought with the phone.

Considering that the Power Armor 16 Pro costs just $160, the official $699.99 that Ulefone is asking for the Power Armor 18T does seem a bit shocking.

However, if you don’t get it directly from Ulefone and are willing to wait for delivery from AliExpress, it can be had for around $570.

Not available on Amazon.com currently, but we found it on Amazon.co.uk for UK customers for £619. However, that’s a good £120 more than AliExpress charges for the same phone.

• Value score: 4/5

Ulefone Armor 18T design

• Solid construction
• By-the-numbers buttons
• Accessory Port

As rugged phone designs go, the 18T is rather stylish, avoiding some of the travel case aesthetics emblazoned on other products.

By bevelling the edge all around, the 18T is easy to pick up, and the angled slots on the underside make it easy to hold even when wet.

To achieve waterproofing sufficient for submersion, two rubber plugs protect the USB-C port on the bottom edge and a 3.5mm audio jack on the top.

You can avoid disturbing the USB-C one if you use wireless charging, and the audio jack one can also be avoided if you have Bluetooth headphones.

The button selection and positions are what we’ve come to expect on rugged Chinese designs, with a combined thumbprint reader/power button and volume rocker on the right and a user-customisable button together with the SIM tray on the left.

The SIM tray can take either two NANO SIMs or a single SIM and a MicroSD card, which isn’t ideal.

The one special external feature that it shares with the 17 Pro is an accessory pogo-pin style connector, designated as the uSmart connector, on the bottom left. Previously we criticised this aspect because attaching an accessory requires the removal of a screw that can be easily misplaced.

This mechanism is implemented exactly the same on the 18T, and it makes the likelihood that once an accessory is attached, like the endoscope or microscope, it will be left connected permanently. This needs a redesign so accessories can be snapped on and off easily and without needing a screwdriver.

Our only other comment about the design is related to the camera cluster, as it is positioned to the very left on the back. For those used to not having the camera in the middle, this is probably fine, but we did have some issues with fingers straying into the shots.

Overall, the accessory port aside, the design of the 18T is good, and it sells the go-anywhere ethos of this device admirably.

At just over 400g, it’s also one of the lighter designs, especially when compared to some of the big battery designs we’ve seen recently.

Design score: 4/5

Ulefone Armor 18T hardware

• High spec platform
• Decent battery size
• Endoscope option

There is a schism developing in rugged phone designs, where the lower budget phones are using the Helio G series SoCs, and then devices like the 18T are moving to the next level with the Dimensity chips, all made by MediaTek.

The 18T uses the Dimensity 900, an SoC with a great combination of performance and efficiency cores blended with a capable GPU and 5G comms.

While this is great compared to the Helio G99, for example, it doesn’t quite meet the performance levels of the Qualcomm Snapdragon 778G, but it is substantially better than the 765G.

In short, for most users, the 18T has more than enough power for the majority of applications and provides a smooth user experience. To make moving between apps, the 18T comes with a very healthy 12GB of RAM, and this can be expanded by another 5GB borrowed from storage by enabling ‘memory expansion’ mode in the settings.

The screen is a good quality 6.58-inch IPS panel with a natural resolution of 1080 x 2408, a size that Ulefone decided to market as FHD+, despite that being 2220 x 1080 pixels.

We’ve seen many odd screen resolutions recently aimed at providing extra vertical pixels to accommodate the inclusion of the forward camera or Android interface elements.

It’s enough to show 1080p videos without borders. If the software has been configured to offer that in ‘full screen’ mode, it can also operate at 120Hz.

With rugged phones, battery life is usually of interest to the customers, and here Ulefone gave the 18T a decent 9600 mAh of capacity. Some phones around have more than twice this amount of battery, but they’re much heavier and less convenient to carry.

Compared with other Ulefone designs, this is more than the 17 Pro offers (5380 mAh) and identical to that in the 16 Pro.

The quoted standby is 524 hours, 39 hours of calling, 22 hours of video and 15 hours of gaming. Those numbers are fractionally down on those of the 16 Pro, but the processing power in the 18T is substantially greater.

This capacity is enough battery for at least four days of use, and with curation, a week is a plausible objective.

But what elevates this design is that Ulefone gave this phone 66W charging, allowing it to recover 52% of its battery capacity in 30 minutes. Wireless charging is four times slower.

Using the OTG technology in the USB-C port, the 18T can supply up to 5W charging to other devices, which is useful for earbuds and other chargeable accessories.

We should also mention that the WiFi 6 support is much better than WiFi 5 if you have a router that supports the newer technology. The dual Band GPS is also very accurate, but the real stand-out technology in the 18T is the cameras that we’ll cover next.

• Hardware score: 5/5

Ulefone Armor 18T cameras

• 108MP sensor on the rear
• Wide-angle, macro and night vision
• Four cameras in total

The Ulefone Power Armor 18T has four cameras:

• Rear cameras: 108MP Main Samsung HM2, 5MP Macro Samsung S5K5E9 sensor, FLIR Lepton 3.5 Thermal camera.
  Front camera: 32MP Samsung S5KGD1 (wide)

The HM2 is a very popular choice for rugged designs now, as it’s a massive 108MP 1/1,52” sensor that includes Samsung’s ISOCELL Plus and Smart-ISO technology.

It is possible to take massive 108MP images if you are prepared to forego any special modes. But where this sensor really shines is when you drop to 12MP mode. In this reduced resolution, the sensor uses 9-in-1 pixel binning technology to effectively enhance the sensor pixels from 0.7μm to 2.1 μm, providing remarkably clear and colour-accurate results.

In this phone, it can also take 4K video, although all video is restricted to 30fps, sadly.

Alongside that sensor is a 5MP microlens camera that has a 60x super magnification mode. Our only reservation about this feature is that it is rather difficult to use if the item you wish to look at in detail isn’t flat, as it can’t autofocus. Our examples include a couple of macro shots, one of a coin and the other of a banknote, and the coin was much more difficult to achieve.

However, the flagship camera feature on this phone is the FLIR Lepton 3.5 sensor, and it has a separate application to grab thermal imaging data as photos or videos.

It can also take thermal time-lapses if you need to see how the temperature of something changes over time. There is even a feature that allows the FLIR sensor to stream a live video over YouTube, which might be useful for remotely monitoring an experiment.

While not the most important part, the front 32MP camera is decent quality and can capture 1080p video

Overall, the camera side of the 18T has some remarkably strong aspects, and the results are usually excellent.

Camera samples

• Camera score: 4/5

Ulefone Armor 18T performance

• Game capable SoC
• Lacks Widevine L1 encryption
• Power and efficiency

We’ve seen these numbers on the Doogee V30 that uses the same SoC, and they looked very good then.

It eclipses the Helio G99-powered phones and is remarkably close to the Qualcomm Snapdragon 695 chips used in the Nokia X30 and Huawei Honor X9a.

Octo-core SoCs are usually strong at multi-thread tests but less impressive at single-task challenges. But in the Dimensity 900, the dual 2.5GHz Cortex-A78 performance cores deliver excellent single-thread performance. And, for power efficiency, it has

six lower-clocked Cortex-A55 cores built to achieve excellent results in multi-threaded scenarios.

Compared to the MediaTek Helio G99 phones like its Power Amor 17 Pro brother, the 18T is around 30% faster at single-thread tests and up to 25-30% better at multi-threaded.

Probably the biggest difference is created by the Mali-G68 MC4 GPU,  as it is at least 40% faster than the Mali-G57 MC2 used in the G99 designs and up to 80% in the 3DMark Wild Life benchmark.

This makes the Dimensity 900 in the 18T much more suitable for gaming and smooth video playback of even 4K files. However, this phone doesn’t support Widevine L1 encryption, and the best resolution you will get from Netflix and Disney+ will be 480p, unfortunately.

• Performance score: 4/5

Ulefone Armor 18T battery

• Decent 9600 mAh capacity
• 66W Fast charging
• 15W Wireless charging

People expect a rugged phone to have a decent battery capacity since the great outdoors doesn’t usually have power sockets on each tree.

The built-in lithium-ion polymer cell offering 9600mAh is enough for a weeklong trek with some restraint and last at least four days of normal use.

That is the same capacity as the 16 Pro, but given this device's performance and 5G capability, it doesn’t quite go as far when used in the 18T. The 524 hours of standby is just four hours less than the 16 Pro manages, but the talk time drops more dramatically from 52 hours to 39 hours, confusingly.

But conversely, the 16 Pro only had 18W charging (10W on the pogo pin base), whereas the 18T has 66W over USB-C and 15W wireless charging.

That makes it much easier to get the 18T fully charged, and overnight it can happily use wireless charging, something the 16 Pro didn’t offer.

For those wanting a massive battery, like the 22000 mAh on the Doogee V Max or Unihertz Tank, the 9600 mAh in the 18T might seem relatively modest. But it's more than enough for most jobs, and including it didn’t make this phone excessively heavy.

• Battery score: 4/5

There is plenty to like in the Ulefone Power Armor 18T, as this is easily the most impressive rugged phone from this brand we’ve seen so far.

It’s well made, able to take the knocks and environment, has enough battery for days away from civilisation and has some remarkably high-quality sensors.

Our only concern is that in adding all the wonderful features that Ulefone included that they’ve elevated the price to a point where it’s beyond the budget of many 2nd phone buyers.

If you can budget this much for a phone specifically for wilderness trips, working on a construction site, or vehicle repair, then the Ulefone Power Armor 18T is worth some proper consideration.

Ulefone Armor 18T score card

Should I buy a Ulefone Armor 18T?

Buy it if...

Don't buy it if...

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Two-minute review

The parallels between the Unihertz Tank and the Doogee V Max that we reviewed recently are stark. Both are large and heavy devices, offering a 22000 mAh battery and a high degree of protection from the environment.

But where Doogee went for the higher ground with the Dimensity 1080 SoC and 5G comms, the Unihertz Tank went for a more price-sensitive Helio G99 and got 4G functionality.

For those that don’t play games or have access to 5G services, the difference between them is much less, and the Tank is $90 less for a long operating life away from a power socket.

The Tank comes with a 66W charger that can fill that enormous battery with power in relatively short order.

As feature sets go, the Tank has an excellent one. Along with the Helio G99 SoC, 8GB of RAM and 256GB of storage, this phone also sports a 108MP primary phone sensor, a 20MP night vision camera, 32MP selfie front camera and an incredibly bright Camping Lamp.

That last feature is a unique extra that can output 1200 lumens of light to illuminate a whole room or forest clearing, depending on what you are trying to achieve. We could see this being remarkably useful in the event of a vehicle accident at night, where other traffic needs to be aware of a stopped vehicle that might have lost power.

The Camping Lamp is just one of the unique features available in the Unihertz Toolbox app. These include a compass, basic flashlight, magnifier, bubble level, plumb bob, protractor, pressure gauge, height measure, speedometer, heart rate monitor, alarm and pedometer, amongst others.

This app talks very much to the customer Unihertz is looking to buy this device, who might be a building contractor or outdoor adventurer, or anyone who doesn’t wish to endanger their premium phone with water, dust or being dropped.

While the features in this phone are generally good, the two issues here are that this is a very large and heavy device that isn’t easy to pocket. And, the asking price is at the high end of what is essentially a 2nd phone that might be reasonably expected to cost.

If you have a particular project in the jungle or desert and do not want to take your Samsung or Apple phone to that party, then the Unihertz Tank is a credible, if slightly pricey, choice.

Unihertz Tank price and availability

• How much does it cost? $370 / £270
• When is it out? It is available now
• Where can you get it? Directly from Unihertz and through online retailers

According to Unihertz, the Tank was priced at $399, but it is now $30 cheaper at $369.99 direct from the makers. Those prices do not include local sales tax, it should be noted.

It appears that there are four different models, one each for the US, EU, Canada and Others (Asia, Oceania and UK), but the cost is the same for all.

It only comes in black, so there is no choice of colour scheme.

We found the same phone on Aliexpress and other online retailers, but the price was broadly similar.

For US customers, the Tank is unlocked for all carriers, but for some, like Verizon, the phone isn’t officially certified.

• Value score: 4/5

Unihertz Tank design

• Solid construction
• Two custom buttons
• Dedicated flashlight

Rugged phones can all look rather similar since there is only a limited direction that designers can go when presented with a large screen, cameras and battery to package.

Like the Doogee V Max, the Tank has slopes on the sides underneath to make it easier to pick up, but that won’t actually help if your wrist doesn’t like supporting 560g of dead weight.

For viewing videos, a stand would be a helpful accessory to own.

The button layout on the Tank is a little odd, as it has two programmable buttons on the left side. One, picked out in red, is in the middle, and the other is reset, making it almost invisible, on the top left.

That second position is the standard location for the SIM tray, and to accommodate this difference, the tray has been moved to the top. It takes a Nano SIM on each side, but this phone has no MicroSD card option at all.

But back to the buttons. As much as having custom buttons on the phone can be useful, the lack of thinking that went into these is depressing. A good example is that it is possible to set the flashlight to come on with one of the buttons, either with a quick press, long press or double action. But there is no accompanying action to turn it off, inconveniently.

This function only turns the ‘flash’ LED on, not the much bigger Camping Light, which is annoyingly inaccessible using the custom buttons.

When you eventually discover how to turn it on, the Camping Light is impressive since it reputedly outputs 1200 lumens of light. That’s enough to provide illumination of a relatively large area, much greater than a typical phone flashlight mode might achieve. It might be perfect for camping, but this light is so bright that if you look into it, even briefly, you’re effectively blind for the next few minutes.

It’s also only accessible through the Toolkit application and not accessible through the Android OS.

The light is an exciting feature and not one we’ve seen on a rugged phone before, but the implementation is less than ideal.

What impressed us more was that access to the USB-C charging port is good, as it uses a large rubber plug to keep water and dust out, and this location also has a 3.5mm audio jack for headphones.

Overall, the Tank offers very solid construction, unsurprisingly, though how features like the Camping Light and custom buttons were approached could have been better.

Design score: 3/5

Unihertz Tank hardware

• Powerful platform
• Big battery size
• No MicroSD

We will talk more about the Helio G99 used in this phone in the performance section, but as SoC packages go, it is one of the better and more capable options available.

When combined with 8GB of RAM and 256GB of UFS 2.2 storage, it makes for a highly responsive experience, even if you load lots of apps onto Android 12.

The considerable 6.81-inch IPS LCD screen is bright and crisp, even if it’s a slightly odd 1080 x 2340 resolution. The only issue we noticed with this was that when using YouTube and playing 1080p content, the frame is scaled when there is sufficient resolution to present it fully.

This phone, like most Chinese phones, doesn’t support Widevine L1, so the maximum supported resolution on most of the big streaming services is limited to 480p, sadly.

Leaving the 108MP main camera sensor to later, the two headline features of this phone are the massive 22000 mAh battery and the unique Camping Lamp on the rear.

We saw a battery this big previously in the Doogee V Max, and in that phone, it is the dominant feature of that design. It makes the Tank ideal for long camping adventures where mains power is unlikely to be available, as the phone can operate for more than a week without conserving power.

The downside of this battery is the weight that it adds, bringing the Tank to a stout 560g, another 17g more than the V Max.

With this much battery and reverse changing functionality, it is possible to use the Tank as a power bank for other devices.

Where massive batteries are available elsewhere, the camping lamp is something we’ve not previously seen. This LED panel on the underside of the phone can output up to 1200 lumens of illumination in a space that is approximately 15 square centimetres.

That much light coming from a 55-inch TV is bright. But compressed into a small trapezium-shaped panel, it is way too much for the human retina to handle comfortably close up.

When you are not blinding yourself, the light will illuminate to a decent range in complete darkness, and when combined with the battery, the light can remain on for a long time.

One feature missing from this phone that is typically included is a MicroSD card position in the SIM tray. Therefore, the 256GB of storage that comes with this phone is as much as it will ever have, as no MicroSD expansion is possible.

• Hardware score: 5/5

Unihertz Tank cameras

• 108MP sensor on the rear
• Wide-angle, macro and night vision
• Four cameras in total

The Unihertz Tank has four cameras:

• Rear cameras: 108MP Samsung HM2, 2MP Macro, 20MP Sony IMX350 (Night Vision)
• Front camera: 32MP SONY IMX616 Sensor (Wide)

The Tank is the third phone we’ve seen sporting the 108MP Samsung S5KHM2 main sensor in the past month. And given some of the results we’ve seen, it is understandable why phone makers are flocking to this option.

Taking up to 12000 x 8992 resolution pictures is impressive, although this resolution must be traded down to 12MP if you want PRO controls or special modes.

Of the phones with this sensor, some offer 4K video, and others do not, and unfortunately, this one limits video capture to 1440p.

It also gets stuck with the same limitations of frame rate we’ve seen elsewhere. Irrespective of video capture resolution, the frame rate is locked at 30fps.

Overall, image quality is good from the full 108MP mode, 12MP feature and video.

The only exception to this is the low-light capability, as alongside the main sensor, Unihertz included a 20MP Sony night vision sensor that uses infrared illumination to create artificial daylight in complete darkness.

Alternatively, the Camping Lamp can be turned on, which works like a portable ‘Sun Gun’ device used by broadcast news cameramen.

That does assume that you are using these features to take photos and not just wander around a forest at night without injury, where you might find the Camping Lamp more useful.

The story of the Unihertz Tank and its cameras is a familiar one, where some excellent sensors were used but then not fully exploited by the software compiled for the phone.

Not to say that it can’t take excellent photographs, but with some attention to detail, it could have taken even better ones with fewer limitations on modes and frame rates.

Camera samples

• Camera score: 4/5

Unihertz Tank performance

• An effective SoC
• GPU overtook by Dimensity
• Fluid experience

If this phone had appeared earlier, perhaps we’d be celebrating its performance more than we are now. The Helio G99 is a great SoC that combines some high performance with excellent power efficiency, and it crushes all the other chips in the MediaTek G series.

However, MediaTek also makes the Dimensity series, and the 900 and now 1080 derivatives run rings around the G series devices.

Other than some subtle clock speed changes, mostly on the two Cortex-A76 cores, the big difference between the G99 and the Dimensity 900 is the GPU, where the Ulefone Armor 18T can call on the Mali-G68 MC4, whereas the G99 only has the ARM Mali-G57 MP2.

Using 3DMark benchmarks to gauge the differences, the Wild Life test scores 1350 on the G99-powered Unihertz Tank and 2198 on the Dimensity 900 imbued Doogee Armor 18T.

The performance divergence on single thread problems is less, but the G99 is an inferior design to the Dimensity 900 and 1080.

But, compared with the other G and P series SoCs from MediaTek, the performance is very good, and this phone is markedly cheaper than the Dimensity using designs like the Doogee V30, Ulefone Armor 18T and Doogee V Max.

Unless you play intensive 3D titles, you are unlikely to notice the difference because this phone has enough power, memory and storage to deliver a good user experience.

• Performance score: 4/5

Doogee V Max battery

• 22000 mAh
• 66W Fast charging
• No Qi charging

One mistake that we noticed on the Doogee V Max is thankfully not repeated here, as this phone can take 66W charging, allowing the 22000 mAh battery to get a full charge rapidly.

That’s twice the inflow of the V Max, and this design can go from empty to full in around 2.5 hours and 90% in less than two.

With the battery full, the phone should easily last a week's regular use, and for those that don’t check their phones every few minutes, potentially double that timescale.

If you intend to power splurge, the battery can keep the 1200-lumen Camping Lamp lit for 6 hours, and you can make a call that lasts for six days.

As the USB-C is bidirectional, the Tank can be used to recharge other phones and even laptops.

The only disappointing aspect of the battery on this phone is that Unihertz didn’t bother to provide it with wireless charging.

There is some logic to the lack of wireless charging since the best Qi charging tops out at about 20W, meaning it would take a very long time to charge this battery using wireless transfer.

• Battery score: 4/5

The whole premise of this design is ‘2nd phone’, since there is little about this design that would make anyone carry it on a daily basis. For worksite appearances and jungle adventures, it’s a credible proposition, but $370 for a secondary device isn’t an impulse buy.

The battery life and camera on this phone are both good, but are they wonderful enough to holster such a cumbersome piece of gear? We have our doubts.

Unihertz Tank score card

Should I buy a Unihertz Tank?

Buy it if...

Don't buy it if...

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