Top 10 World's Slimmest Phones in 2025

One key aspect of cellphone design is its thickness. A thin cellphone not only looks stylish but also tends to be lighter. This makes it more comfortable to hold and improves its overall ergonomics.

The preference for slim cellphones has been around since the era of feature phones. This trend has continued into the smartphone era and remains popular today.

Here, Carisinyal presents a list of the world's thinnest phones. Curious to know which ones made the cut? Take a look at the details below.

1. HONOR V Purse

HONOR Magic V Purse becomes one of the slimmest foldable smartphones available. Its sleek design measures just 4.3 mm when unfolded and 8.6 mm when folded.

Setting itself apart from typical foldable phones, the HONOR V Purse introduces a distinct design where it folds outward. This allows the screen to wrap around to the back of the phone, offering an extended display.

Drawing inspiration from the compact and portable nature of a woman's purse, often a staple at weddings, this phone is designed for convenience and style.

HONOR has equipped the phone with an innovative folding mechanism. This system includes a slender 1.2 mm spring and a tiny gear, only 1.7 mm in diameter to facilitate smooth folding.

In its design, the phone incorporates a concept called "Phy-Digital Fashion Statement." This blends the always-on display (AOD) feature with a stylish strap design, allowing the phone to be worn on the arm like a traditional purse. The display can also show decorative patterns reminiscent of those found on luxury bags.

The primary display is a 7.71-inch Foldable OLED panel, offering exceptional brightness of up to 1,600 nit. This ensures the screen remains clear even in bright sunlight.

The secondary screen is impressively large for a foldable phone, at 6.45 inches. It shares the same high brightness level and OLED technology as the main screen. Both screens offer a 90 Hz refresh rate for smoother visuals.

Despite its slender profile, the phone's weight is 214 grams. While this is on the heavier side for a phone touted as the "world's thinnest," it's still within the acceptable range for high-end smartphones.

The camera setup, while standard for premium phones, includes a 50 MP main camera and a 12 MP ultrawide sensor. Although it lacks a telephoto lens, the phone features a special Portrait Mode that toggles between 1x and 2x zoom.

As for its launch price in China on September 19, 2023, the HONOR V Purse was quite affordable at around 823 US dollars.

2. Honor Magic V3

Honor Magic V3 is impressively thin, measuring just 4.65 mm when open and 9.8 mm when folded, with a weight of 229 grams.

It features a large 7.92-inch Foldable LTPO OLED main display with a resolution of 2156 x 2344 pixels, supporting stylus input for multitasking. The main screen is protected by sturdy King Kong Rhinoceros glass.

The cover display is a 6.43-inch LTPO OLED Full HD+ screen with a high brightness level of 2500 nits. It is shielded by nanocrystal glass, which makes it resistant to scratches and cracks. Both displays support a 120 Hz refresh rate, ensuring smooth visuals.

Powering the device is the Snapdragon 8 Gen 2 processor, paired with ample memory for high performance.

The rear camera setup includes a 50 MP main camera with OIS, an 8 MP telephoto lens with 5x optical zoom and OIS, and a 40 MP ultrawide camera. The rear cameras support 4K video recording at 60 FPS, with both EIS gyro and OIS for stabilization.

For selfies, there are two 16 MP front cameras—one on the main screen and one on the cover screen—both capable of recording in 4K at 30 FPS with EIS gyro support. The phone also offers a full range of sensors and connectivity options.

Battery life is solid, with a 5000 mAh battery that supports 66W fast charging. It also includes 50W wireless charging and 5W reverse wireless charging.

However, this device doesn't have an IP certification for water and dust resistance. It does not support 8K video recording and does not include a microSD card slot or a 3.5mm audio jack. Its battery life is decent but not the best among foldable phones, lasting around 12 hours for video streaming on the cover display.

3. Huawei Mate X6

Huawei Mate X6 is an impressively thin foldable phone, measuring just 4.6 mm when open and 9.9 mm when folded. It embraces an innovative foldable design, seamlessly transforming into a tablet for a more immersive experience.

Unlike most foldable devices, it comes with an IPX8 certification, making it water-resistant at depths of up to 1.5 meters.

The phone features a 7.93-inch Foldable LTPO OLED main display with a crisp 2240 x 2440 resolution. Its peak brightness reaches 1800 nits to ensure comfortable visibility even in outdoor conditions.

Meanwhile, the secondary screen measures 6.45 inches with a Full HD+ LTPO OLED panel, offering an even brighter 2500 nits peak brightness for better readability under direct sunlight. Both displays support a 120Hz refresh rate, making scrolling and gaming feel exceptionally smooth.

Durability is another strong suit, as both screens are protected by Kunlun Glass 2, providing better resistance against scratches and cracks.

For audio, the stereo speakers deliver high-definition sound, making the phone a great choice for multimedia consumption. Performance-wise, it relies on Huawei’s Kirin 9020 chipset, which ensures seamless multitasking and smooth gaming performance.

The camera setup is equally impressive. The 50 MP main camera comes with a dynamic aperture ranging from f/1.4 to f/4.0, along with PDAF and OIS for enhanced stability.

There’s also a 40 MP ultrawide camera with a 120-degree field of view and PDAF autofocus support. Completing the trio, the 48 MP telephoto periscope camera has a 90mm focal length, allowing 4x optical zoom, with PDAF and OIS ensuring steady shots.

On the video side, the rear camera is capable of 4K recording, supported by EIS and OIS gyro stabilization.

For connectivity,the phone includes BDS Satellite Calling and Messaging. Battery life utilizes 5110 mAh battery with Silicon Carbide (Si/C) technology, which makes it more efficient. Charging options support 66W fast charging, 50W wireless charging, 7.5W reverse wireless charging, and 5W reverse wired charging.

Despite its many strengths, the Huawei Mate X6 lacks 8K video recording, which is a notable omission for a flagship device. Some competitors have already moved on to the newer Wi-Fi 7 standard, while this model still uses older connectivity options.

Additionally, the front camera does not support 4K 60 FPS recording, which may be disappointing for video enthusiasts. Lastly, Huawei has removed both the microSD card slot and the 3.5mm audio jack, which might be an inconvenience for users who rely on these features.

4. Xiaomi Mix Fold 4

Xiaomi Mix Fold 4 is impressively thin, measuring just 4.6 mm when open and 9.5 mm when folded. It has an IPX8 certification, making it waterproof up to a depth of 1.5 meters.

The phone features a large 7.98-inch internal screen with a Foldable LTPO AMOLED panel and UTG glass protection. The 6.56-inch cover screen also uses an LTPO AMOLED panel and is protected by scratch-resistant and impact-resistant glass.

Both screens offer an outdoor brightness of up to 1700 nits, ensuring excellent visibility even in bright sunlight.

Powered by the Snapdragon 8 Gen 3 SoC, the Mix Fold 4 delivers efficient performance while maintaining power efficiency. It comes with a quad-camera setup with autofocus, including two telephoto cameras, one of which is a periscope telephoto lens.

The total optical zoom capability is 7x, which is impressive for a foldable phone. Leica technology enhances photo and video post-processing for high-quality imaging.

The device supports two-way emergency communication via satellite, allowing both messaging and phone calls in areas without network coverage. It offers comprehensive connectivity options, including a USB-C 3.2 port with USB display out support.

Battery life is long-lasting, thanks to a 5110 mAh battery, which can easily last a full day under normal use. The phone supports 67W fast charging (charging up to 31% in just 10 minutes) and 50W wireless fast charging (charging up to 24% in 10 minutes).

One drawback is the lack of stylus support, which would have been useful for business users, a key target market for foldable devices.

The front camera is limited to recording at 1080p 60 fps, which may disappoint users who expect higher resolution video recording.

Like other foldable phones, the durability of the folding screen is not as strong as a regular screen. Screen creases are still visible, which may affect the overall viewing experience.

5. HONOR Magic Vs3

HONOR Magic Vs3 is an impressively thin foldable phone, measuring just 4.35 mm when open and 9.2 mm when folded, while weighing only 226 grams. It feels light yet solid in hand.

It features a large 7.92-inch foldable LTPO OLED main screen with a 2156 x 2344 resolution, making it perfect for a tablet-like experience. The main screen also supports a stylus, which makes multitasking much easier. On top of that, it is protected by King Kong Rhinoceros glass, ensuring extra durability.

The secondary screen is 6.43 inches with a Full HD+ LTPO OLED panel and can reach a brightness of 2500 nits, making it easy to use even under bright sunlight.

It’s covered by nanocrystal glass, making it more resistant to scratches and cracks. Both screens support a 120Hz refresh rate, making everything look and feel smooth.

With IPX8 certification, the Magic Vs3 can handle being underwater up to 2.5 meters for 30 minutes, giving it solid water resistance.

Powering the device is the Snapdragon 8 Gen 3, delivering fast and efficient performance with support for large memory options.

For photography, the Magic Vs3 offers a triple rear camera setup, featuring a 50 MP main camera with OIS, a 50 MP telephoto lens with 3.5x optical zoom, and a 40 MP ultrawide camera.

The rear cameras can record up to 4K at 60 FPS (10-bit) and come with EIS gyro and OIS stabilization, ensuring steady and high-quality shots. There are also two 20 MP front cameras, one on the main screen and one on the cover screen, both capable of recording 4K at 30 FPS with EIS gyro stabilization.

The phone includes a full set of sensors and connectivity options, making it well-equipped for daily use.

Battery life is strong, thanks to a 5150 mAh silicon carbide battery, which is not only durable but also lightweight. It supports 66W fast charging, 50W wireless charging, and 5W reverse charging, allowing users to charge other devices wirelessly when needed.

However, it does have a couple of downsides. The phone does not support 8K video recording, which may be disappointing for some users. It also lacks a microSD card slot and a headphone jack, so expandable storage and wired audio options are not available.

6. vivo X Fold3

The vivo X Fold3 is an impressive foldable phone with a lot to offer. When unfolded, it’s incredibly slim at just 4.7 mm. The design is minimalist, featuring strong hinges and a carbon fiber frame for durability.

The main screen is a large 8.03-inch Foldable LTPO AMOLED with a sharp resolution of 2200 x 2480 pixels, while the secondary screen is a 6.53-inch AMOLED with a resolution of 1172 x 2748 pixels.

Both screens support HDR10+ and Dolby Vision that can reach up to 4500 nits of brightness, making them perfect for outdoor use. With a 120 Hz refresh rate, the screen movement is smooth and fluid.

The stereo speakers deliver loud and clear sound. Powered by the Snapdragon 8 Gen 2, this phone handles heavy multitasking and gaming with ease. It offers up to 16 GB of LPDDR5x RAM and up to 1 TB of UFS 4.0 internal storage, ensuring you have plenty of space and speed for your apps and files.

The camera setup includes a 50 MP triple lens system, developed in collaboration with ZEISS, featuring optical image stabilization (OIS) on the main camera, 2x optical zoom on the telephoto lens, and a 119-degree ultrawide field of view.

You can record videos in up to 8K at 30 FPS or 4K at 60 FPS, with gyro-EIS providing added stabilization. The phone also includes two 32 MP front cameras—one on the main screen and one on the cover. This is great to take selfies from any angle. Connectivity options are extensive, with support for WiFi 7, infrared, NFC, USB OTG, and a hardware gyro.

However, there are a few drawbacks to consider. When folded, the thickness increases to 10.2 mm, and at 219 grams, it can feel a bit heavy and uncomfortable to hold with one hand.

Additionally, the phone doesn’t include built-in protection for the body or screen, which could be a concern for durability. Lastly, the front camera is limited to recording video at 1080p at 30 FPS, which might not meet the expectations of those who prioritize high-quality video.

7. Honor Magic V2

HONOR Magic V2, formerly known as the world's thinnest foldable phone, has been outdone by the HONOR V Purse. First introduced to the Chinese market in July 2023, it achieved global availability in early 2024.

Sporting a vegan leather exterior, the HONOR Magic V2 presents a sleek form, measuring just 4.7 mm when unfolded and 9.9 mm when folded, with a weight of 231 grams. This makes it slightly lighter than the iPhone 14 Pro Max, yet heavier than the iPhone 15 Pro Max.

Compared to its forerunner, the HONOR Magic V, this model shows a remarkable decrease in thickness; the previous version was 6.7 mm thick when opened. The HONOR Magic V2 features a sturdy, gearless unibody hinge crafted from titanium, engineered to endure up to 400,000 folding actions.

While it may not match the latest advancements in processor technology, running on the Snapdragon 8 Gen 2 instead of the more recent Snapdragon 8 Gen 3, it still holds its own among high-end smartphones.

A unique aspect of the HONOR Magic V2 is its compatibility with a stylus, applicable to both its primary and secondary displays. At its launch in China in July 2023, the starting price was set at 8.99 yuan, which is roughly equivalent to USD 1,299.

8. Honor Magic V2 RSR Porsche Design

The Porsche car-inspired variant of the HONOR Magic V2 shares the gearless titanium hinge of its regular counterpart, ensuring lightweight durability. This hinge has received SGS certification, indicating a high likelihood of enduring long-term use.

This foldable smartphone has a slim profile, measuring 9.9 mm when closed and thinning down to just 4.7 mm when open. It's also relatively lightweight at 234 grams.

Distinct from the standard HONOR Magic V2, this model, available exclusively in Agate Gray, sports a unique design. The camera module, with its tapered bottom edge, evokes the sporty elegance commonly associated with luxury cars.

The device offers a luxurious metal feel in hand. Its rear body is adorned with titanium alloy lettering and is covered in glass fibre material comparable in quality to that used in sports cars.

Enhanced durability is provided by the NanoCrystal Shield glass coating, reputed to be significantly more scratch-resistant and up to ten times more resistant to drops. Both the main and secondary displays, 7.92 inches and 6.43 inches respectively, feature 120 Hz OLED LTPO panels and support a rich palette of over 1.07 billion colors.

9. Huawei Mate XT Ultimate

Huawei Mate XT Ultimate is an impressive foldable phone with a unique design. It has three different thickness levels: when fully opened, it's incredibly thin at just 3.6-4.8mm, and when folded, it measures 12.8mm.

What makes it stand out is that it's the first foldable phone in the world to offer three different screen configurations, making it highly versatile.

The main display is a massive 10.2-inch Tri-foldable LTPO OLED panel, perfect for watching videos or multitasking. It boasts a sharp resolution of 2232 x 3184 pixels and supports 1.07 billion colors for vibrant visuals.

When partially unfolded (2/3 open), the internal screen measures 7.9 inches with a resolution of 2048 x 2232. The cover screen, which is 1/3 of the main display, is 6.4 inches with a resolution of 1008 x 2232.

All three screens feel smooth and responsive, thanks to the 120Hz refresh rate, making scrolling, multitasking, and gaming seamless.

Audio quality uses stereo speakers that deliver loud and high-resolution sound. The phone runs on the powerful Kirin 8000 chipset with a massive memory capacity which can ensure fast performance.

For photography lovers, it comes with a triple rear camera setup: a 50MP main camera with OIS, a 12MP ultrawide lens, and a 12MP telephoto periscope offering 5.5x optical zoom. Video recording supports up to 4K resolution with HDR, along with gyro-EIS and OIS for stability.

Connectivity and sensors include an infrared blaster, a color spectrum sensor, and a barometer. The battery also features a 5600mAh capacity made with Silicon Carbide (Si-C) for better durability.

Charging speeds are impressive, with 66W fast charging, 50W wireless fast charging, 5W reverse charging, and 7.5W reverse wireless charging.

However, there are a few downsides. The phone lacks an official IP rating for water and dust resistance, and there's no microSD slot for expandable storage. Additionally, it's not widely available, as it is currently only sold in China.

10. Google Pixel 9 Pro Fold

Google Pixel 9 Pro Fold offers a sleek and modern foldable design with a slim profile—measuring just 5.1 mm when open and 10.5 mm when closed. This design allows for a larger screen when unfolded, making it great for multitasking and entertainment while remaining compact and easy to carry when folded.

The device features an 8-inch main screen and a 6.3-inch front screen, both delivering sharp and clear visuals, making them ideal for watching videos or playing games. It also offers an impressive screen brightness of up to 2700 nits on both displays, ensuring good visibility in various lighting conditions.

Powered by the Google Tensor G4 chipset with a 4 nm fabrication process, the Pixel 9 Pro Fold comes with 16GB of RAM, providing smooth performance for multitasking.

The rear camera system includes a 48MP main sensor, a 10.5MP ultrawide camera, and a 10.8MP telephoto lens, allowing users to capture high-quality photos and videos.

The 10MP front camera ensures clear selfies and video calls. Both front and rear cameras can record videos in 4K resolution at 60 fps, making the device great for content creation.

Additional features like Satellite SOS and IPX8 water resistance add extra safety and durability. The phone also supports USB-C 3.2 that enables the USB display-out feature. Running on Android 14, it comes with 7 years of OS and security updates, ensuring long-term software support.

However, the Pixel 9 Pro Fold comes at a high price, which may not be affordable for everyone. It also doesn't offer significant improvements over competitors like the Samsung Galaxy Z Fold6 or OPPO Find N3. Additionally, it only supports 21W fast charging, which is slower compared to other foldable phones on the market.

In conclusion, these are some of the world's thinnest and most advanced mobile phones. They are ideal choices for anyone seeking a combination of aesthetic elegance and cutting-edge technology in a smartphone.