Dell Latitude 5455 review – 22+ Hour Battery! …And a Pale Display
Imagine a laptop that you charge on Monday morning and potentially don’t need to plug in again until Wednesday afternoon. That’s not a fantasy; it’s the reality offered by the new Dell Latitude 5455, powered by Qualcomm’s energy-sipping Snapdragon X Plus processor. With over 22 hours of battery life in our tests, this sleek, sustainably built machine immediately sets a new benchmark for mobile endurance, all wrapped in an elegant “Titan Grey” aluminum chassis that feels as premium as it looks.
But does this incredible longevity come with significant trade-offs elsewhere? Beyond its marathon battery and modern connectivity, how does the display hold up, and what are the real-world implications of its ARM-based architecture for performance and software compatibility? Join us as we dive deep into the Dell Latitude 5455, scrutinizing its impressive build, that record-breaking battery, its surprisingly limited screen colors, and the overall user experience to help you decide if this endurance champion is the right fit for your professional needs.
You can check the prices and configurations in our Specs System: https://laptopmedia.com/series/dell-latitude-14-5455/
Contents
Specs, Drivers, What’s in the box
Dell Latitude 14 5455 - Specs
- Display
- 14.0”, WUXGA (1920 x 1200), IPS
- HDD/SSD
- up to 1000GB SSD
- M.2 Slot
- 1x 2230 M.2 NVMe PCIe 4.0 x4 See photo
- RAM
- up to 16GB
- OS
- Windows 11 Pro, Windows 11 Home
- Dimensions
- 314 x 223.75 x 17.9 mm (12.36" x 8.81" x 0.70")
- Weight
- 1.53 kg (3.4 lbs)
- Ports and connectivity
- 1x USB Type-A
- 3.2 Gen 1 (5 Gbps)
- 2x USB Type-C
- 4.0, Power Delivery (PD), DisplayPort
- Card reader
- microSD (microSD, microSDHC, microSDXC)
- Ethernet LAN
- Wi-Fi
- Wi-Fi 7
- Bluetooth
- 5.4
- Audio jack
- 3.5mm Combo Jack
- Features
- Fingerprint reader
- Web camera
- FHD IR with support for Windows Hello Face Authentication
- Backlit keyboard
- Microphone
- 2x Microphones
- Speakers
- 2x top firing premium speakers + 2x bottom firing premium speakers, Qualcomm Aqstic Speaker Max
- Optical drive
- Security Lock slot
All Dell Latitude 14 5455 configurations
Drivers
All drivers and utilities for this notebook can be found here: https://www.dell.com/support/product-details/en-us/product/latitude-14-5455-laptop/drivers
What’s in the box?
There are no additional accessories in the bundle, except for the rather portable 65W charger.
Design and construction
The Dell Latitude 5455 exudes an aura of pure, understated elegance. Its design is clean and minimalist, with the only branding being an almost imperceptibly debossed circular DELL logo on the lid.
Finished in a sophisticated matte “Titan Grey,” it looks every bit the professional tool it’s designed to be. A significant aspect of its construction is Dell’s commitment to sustainability: the lid is crafted with 50% low-emissions and 50% recycled aluminium, while the bottom cover and palm rest are made from 100% low-emissions aluminium. This not only speaks to environmental responsibility but also contributes to a very solid and premium feel. It’s also impressively resistant to fingerprints, keeping it looking neat and professional throughout the workday. The entire chassis feels very stable and well-built, with no concerning flex.
Dell proudly proclaims this as their thinnest Latitude mainstream laptop ever, and it truly is remarkably svelte, measuring just 17.90 mm (0.70 in.) thick. Combined with a weight of only 1.53 kg (3.37 lbs), it’s an incredibly portable machine – you might genuinely forget it’s in your bag. However, when it comes to opening the lid, the hinges are quite firm; you’ll definitely need two hands for this operation. Once open, the screen can tilt back to approximately 120 degrees. As you open it, the rear of the base cleverly lifts off the surface, creating a comfortable typing angle and improving airflow underneath for better thermal performance.
The display is framed by impressively thin bezels on the sides, maximizing the screen real estate. The top bezel is noticeably thicker, but this is justified by the array of technology packed within, including an FHD/IR Camera that supports Dell’s ExpressSign-In and Intelligent Privacy features, along with Temporal Noise Reduction (TNR) and a microphone array.
Crucially for security-conscious users, Dell has included a physical camera shutter, providing absolute peace of mind.
The keyboard deck offers a very comfortable and efficient typing experience. Given the compact 14-inch chassis, there’s no room for a dedicated NumPad, allowing for generously sized main keys. The keyboard features a clean white backlight with two brightness levels. As is common on many modern laptops, the Up and Down arrow keys are half-height, which takes a little getting used to but is a minor compromise. For biometric login, a fingerprint reader is neatly integrated into the top-rightmost key of the keyboard. Below the keyboard, you’ll find a trackpad that is relatively large for the laptop’s overall footprint, offering a smooth, responsive, and comfortable navigation experience.
Ports and Connectivity
The Dell Latitude 5455 offers a modern port selection focused heavily on USB Type-C. On the left side, you will find two highly capable USB Type-C ports. Both of these support the USB4 40Gbps standard, providing high-speed data transfer, and incorporate Power Delivery for charging the laptop or connected peripherals. Crucially, they also feature DisplayPort 2.1 Alt Mode, enabling connection to advanced external monitors with high resolutions and refresh rates. A microSD card reader is also conveniently located on this left flank for easy file access from compatible memory cards.
Moving to the right side of the Latitude 5455, there is a single USB 3.2 Gen 1 Type-A port, operating at 5Gbps speeds. This port includes Dell’s PowerShare feature, which allows it to charge external devices even when the laptop is powered off. A universal 3.5mm audio jack for headphones or headsets is also present on this side. Given the emphasis on USB-C, users requiring connections like dedicated HDMI or wired Ethernet will need to utilize USB-C adapters or a docking station, as these are not built into the chassis.
For wireless connectivity, the Dell Latitude 5455 is equipped with the cutting-edge Qualcomm FastConnect 7800 module. This provides Wi-Fi 7 capabilities, supporting the latest 802.11be standard with a 2×2 antenna configuration for potentially faster speeds and more reliable connections on compatible networks. Bluetooth 5.4 is also included for connecting a wide range of wireless peripherals.
Display Quality, Get our Profiles
This is the only display option for Dell Latitude 5455 – 1200p IPS.
| Dell Latitude 5455 | AUO 4RJCP-B140UAN (AUO82B2) |
| Diagonal | 14.0 inches (35.6 cm) |
| Panel Type | IPS |
| Resolution | 1920 x 1200 pixels |
| Max Refresh Rate | 60 Hz |
| Aspect Ratio | 16:10 |
| Pixel Density | 162 PPI |
| ‘Retina’ Distance | Greater than or equal to 53 cm |
Viewing Angles
Viewing angles are good. We take photos from different angles to evaluate the quality.
Also, a video with locked focus and exposure.
Color Coverage
The whole “sail-shaped” map below (Fig. 1) consists of all the colors we can see, while the black crooked line shows all the colors from real-world scenes and nature around us.
Then, we’ve drawn some of the most important and interesting color spaces, compared to the colors the panel of Dell Latitude 5455 can show:
Standard/For Web: sRGB – widely used color space for most consumer devices, ideal for Web design and development
For Print: AdobeRGB – used in professional photo editing, graphic design, and print
For Photographers/Video Editors: DCI-P3 – used in high-end film production, post-production, and digital cinema
Premium HDR: Rec.2020 – the widest consumer ITU color standard, covering a massive 75.8% of the visible spectrum, a benchmark for premium HDR content
Dell Latitude 5455: the yellow dashed triangle (– – – – – –) represents the range of colors this monitor can display.
In our tests, we calculated the total color coverage of the monitor at 50% of the sRGB color gamut and 40% of the DCI-P3 color gamut.
(Fig.1) Dell Latitude 5455 covers 50% of the sRGB gamut
Brightness and Contrast
The maximum brightness in SDR mode is 326 cd/m² in the center of the screen and 305 cd/m² averaged across the surface with a maximum deviation of 11%.
The Correlated Color Temperature (CCT) on a white screen at maximum brightness is 6810K.
The contrast ratio is 1360:1.
Uniformity: Luminance, Contrast, and Color Deviation
The figure below shows the results from our uniformity test across different sections of the screen. It’s measured at 183 nits (Windows slider = 64%) — a brightness level we consider typical for standard working conditions.
DeltaE values below 4.0 are acceptable for regular users. For those working with colors, screens with DeltaE values no higher than 2.0 are recommended.
Color Accuracy
Let’s check the difference between real colors and those you’ll see on the Dell Latitude 5455. We measure that distance in DeltaE – the higher the number, the more different they look.
Values below 4.0 are acceptable for regular users, while values below 2.0 are suitable for color-sensitive work. A value below 1.0 means the difference is indistinguishable to the naked eye.
For the next graph, we’ve selected 24 common colors, including dark/light skin, blue sky, green grass, etc.
Before our calibration of the Dell Latitude 5455, the Average color accuracy was 4.3 dE (Fig. 2), and with our Design and Office profile, it lowered to 4.1 dE (Fig. 3).
(Fig. 2) Dell Latitude 5455 in its factory condition
(Fig. 3) Dell Latitude 5455 with our display profile
Comparison in the sRGB color space.
Here’s an illustration of what the Design and Office profile aims to deliver:
Left: No Profile | Drag the slider to see the difference | Right: Design & Gaming Profile
Visibility in dark scenes
Have you ever watched a movie with dark scenes where you could barely see anything? This often happens because many display panels struggle to differentiate the darkest nuances, making them appear the same.
The next figure illustrates how well the display reproduces these dark nuances. The left side of the image shows the display with stock settings, and the right side shows it with our Gaming and movies profile activated.
On the horizontal axis are the grayscale levels, and on the vertical axis – the corresponding display brightness.
You can also check how your display handles the darkest nuances but keep in mind that this also depends on the settings of your current display and the surrounding light conditions.
Response time (Gaming capabilities)
We test the reaction time of the pixels with the usual “black-to-white” and “white-to-black” method from 10% to 90% and vice versa.
We recorded Fall Time + Rise Time = 16.1 ms. Short pixel response time is a prerequisite for a smooth picture in dynamic scenes.
After that, we test the reaction time of the pixels with the usual “Gray-to-Gray” method from 50% White to 80% White and vice versa between 10% and 90% of the amplitude.
Health Impact: PWM (Screen flickering)
Some use PWM to regulate their brightness, which means that instead of reducing the light intensity, they pulse or flicker. Our brain merges the image, so it appears darker, but this strains both it and our vision, especially when the frequency of the pulses is low. You can read more about that in our dedicated article on PWM.
In the graph below, you see the intensity of light at different brightness levels—on the vertical axis is the brightness of the emitted light, and on the horizontal axis—time.
The light from the backlight of the Dell Latitude 5455 display is not pulse-width modulated, providing visual comfort in the discussed aspect.
Health Impact: Blue light emissions
Installing our Health-Guard profile not only eliminates harmful PWM when the laptop uses it to control brightness but also reduces harmful Blue Light emissions while keeping the colors of the screen perceptually accurate.
If you’re not familiar with the Blue light, the TL;DR version is – emissions that negatively affect your eyes, skin, and your whole body. You can find more information about that in our dedicated article on Blue Light.
Health Impact: Screen Reflectance
Glossy-coated displays can cause eye fatigue in high ambient light conditions due to reflections. We measure the level of screen reflection with the display turned off, at a 60° angle.
The reflectance of the Dell Latitude 5455’s screen is 52.6 GU. This is a very good result.
High Gloss: >70 GU
Medium Gloss: 30 – 70 GU
Low Gloss: <30 GU
Get our profiles
Since our profiles are tailored for each individual display model, this article and its respective profile package are meant for Dell Latitude 5455 configurations with 4RJCP-B140UAN (AUO82B2), 1920 x 1200, IPS panel.
*Should you have problems with downloading the purchased file, try using a different browser to open the link you’ll receive via e-mail. If the download target is a .php file instead of an archive, change the file extension to .zip or contact us at [email protected].
Read more about the profiles HERE.
In addition to receiving efficient and health-friendly profiles, by buying LaptopMedia's products you also support the development of our labs, where we test devices in order to produce the most objective reviews possible.
Office Work
Office Work should be used mostly by users who spend most of the time looking at pieces of text, tables or just surfing. This profile aims to deliver better distinctness and clarity by keeping a flat gamma curve (2.20), native color temperature and perceptually accurate colors.
Design and Gaming
This profile is aimed at designers who work with colors professionally, and for games and movies as well. Design and Gaming takes display panels to their limits, making them as accurate as possible in the sRGB IEC61966-2-1 standard for Web and HDTV, at white point D65.
Health-Guard
Health-Guard eliminates the harmful Pulse-Width Modulation (PWM) and reduces the negative Blue Light which affects our eyes and body. Since it’s custom tailored for every panel, it manages to keep the colors perceptually accurate. Health-Guard simulates paper so the pressure on the eyes is greatly reduced.
Get all 3 profiles with 33% discount
Sound
When we subjectively listen to a sound file through the built-in speakers, the sound quality offered by Dell Latitude 5455 is very good. There is, however, a noticeable rise in the high frequencies in the frequency response chart.
Work Performance: CPU, Storage, AI
All performance and temperature tests are conducted with “Ultra Performance” preset activated in Dell Optimizer:
CPU and Work Performance
Dell Latitude 5455 has two CPU variants – Qualcomm Snapdragon X Plus X1P-42-100, and X Plus X1P-64-100:
| Specification | Snapdragon X Plus X1P-42-100 | Snapdragon X Plus X1P-64-100 |
| Processor wattage | 15 W | 15 W |
| Total core count | 8 | 10 |
| Performance-cores | 8 | 6 |
| Efficient-cores | Not applicable | 4 |
| Total thread count | 8 | 10 |
| Processor speed | 3.24 GHz–3.42 GHz | Up to 3.40 GHz |
| Performance cores – base frequency | 3.24 GHz | Up to 3.40 GHz |
| Performance cores – turbo frequency | Up to 3.42 GHz | Up to 3.40 GHz |
| Efficient cores – base frequency | Not applicable | 3.40 GHz |
| Efficient cores – turbo frequency | Not applicable | 3.40 GHz |
| Thermal Mode – Cool | 13 W | 13 W |
| Thermal Mode – Optimized | 15 W | 15 W |
| Thermal Mode – Quiet | 12 W | 12 W |
| Thermal Mode – Ultra performance | 21 W | 21 W |
| Processor cache | 30 MB | 42 MB |
| Integrated graphics | Qualcomm Adreno Graphics | Qualcomm Adreno Graphics |
We ordered a configuration with X Plus X1P-42-100 for this review.
Single-core performance ensures smooth operation and responsiveness in operating systems, providing a better user experience.
Results are from the Geekbench 6 Single-Core test (higher is better)
Multi-core performance is essential for handling complex and demanding tasks, such as Video editing, CAD, and Scientific simulations.
Results are from the Geekbench 6 Multi-Core test (higher is better)
Here, we evaluate the CPU's performance using a real-world 3D rendering task, assessing its ability to handle complex computations and rendering workloads efficiently.
Results are from the Cinebench 2024 Multi-Core test (higher is better)
Storage Performance
We ordered Dell Latitude 5455 in its 512GB storage variant and it arrived with BG6 KIOXIA PCIe 4.0, NVMe SSD. It’s speeds are a bit limited compared to the 1TB/2TB versions with 5.0GB/sec sequential read, and 4.4GB/sec sequential write speed. You can expect ~1GB/sec faster speeds for the 512GB/1TB versions, and ~40% more IOPS.
AI Performance
Both Qualcomm Snapdragon X Plus X1P-42-100, and X Plus X1P-64-100 have integrated NPUs rated at up to 45 TOPS, exceeding the Copilot+ requirement of 40 TOPS.
Check out our full AI Performance Rankings.
GPU and Gaming Performance
The integrated graphics in X Plus is Adreno Graphics.
You can find the performance rating of all the GPUs on the market in our Top Laptop Graphics Ranking.
The results are from 3DMark Wild Life Extreme Unlimited. Higher is better.
Gaming tests
The ARM based GPU has some issues running CS2. We got 70+ FPS in 1200p but it stuttered. Black Myth: Wukong also didn’t work very well.
Of course, the Latitude line isn’t intended for gaming, and we can confirm that it’s not suitable.
| Black Myth: Wukong | 1200p, Low (Check settings) |
| Average FPS | 26 FPS |
Battery Life
Dell Latitude has a small 54 Wh battery. However, the ARM processor is very energy-efficient.
We tested it with the Quiet mode selected in Dell Optimizer, which is the mode with lowest TDP – 12 W.
We got more than 22 hours on a single charge, which is incredible, given the little capacity of the battery!
Brightness: 180 nits; Display Mode: SDR
Time to Full Discharge: Higher is Better
Disassembly, Upgrade options, and Maintenance
We begin by unscrewing seven screws from the bottom panel of the laptop. The two outer screws near the hinges are fixed to the cover and stay attached. For this task, we use a Japanese Industrial Standard screwdriver, size №0.
Then, using a thin plastic tool, we begin to release the plastic clips holding the bottom cover in place. Once unclipped, the panel can be removed completely.
Verdict
The Dell Latitude 5455 makes a strong statement in professional elegance, boasting a minimalist “Titan Grey” design crafted with a significant commitment to recycled and low-emissions aluminum. This not only highlights Dell’s environmental responsibility but also results in a remarkably solid, premium-feeling chassis that admirably resists fingerprints. It’s impressively thin and light, making it exceptionally portable, and features a clever hinge design that lifts the base for improved typing comfort and airflow. Security is well-addressed with an FHD/IR camera supporting Dell’s intelligent privacy features and, crucially, a physical privacy shutter, complemented by a fingerprint reader integrated into the keyboard.
At the heart of the Latitude 5455’s appeal is its astonishing battery life. Powered by the energy-efficient Qualcomm Snapdragon X Plus processor, our unit delivered over 22 hours on a single charge from its relatively modest 54Wh battery – an incredible feat that positions it as a true endurance champion for mobile professionals. This exceptional efficiency doesn’t come at the expense of modern connectivity, with dual USB4 40Gbps ports (supporting Power Delivery and DisplayPort 2.1), a microSD card reader, and cutting-edge Wi-Fi 7 ensuring future-proof connections. The keyboard offers a comfortable typing experience, and the trackpad is generously sized and responsive.
However, the most significant compromise with the Latitude 5455 lies in its display. While the 14-inch 1920×1200 IPS panel offers good viewing angles, a decent contrast ratio, and is commendably PWM-free for comfortable viewing, its color reproduction is severely lacking, covering only 50% of the sRGB gamut. This results in visibly muted and inaccurate colors, rendering the laptop unsuitable for any tasks requiring even moderate color fidelity. While fine for standard office productivity, users expecting vibrant visuals will be disappointed. Furthermore, the reliance on ARM-based architecture means that while the integrated Adreno graphics and NPU meet Copilot+ AI PC requirements, gaming performance is very limited, with noticeable issues in some titles. The port selection, while modern, is also minimalist, lacking native HDMI or Ethernet, requiring adapters for such connections.
Ultimately, the Dell Latitude 5455 excels in areas critical for the highly mobile professional: unparalleled battery life, a sophisticated and sustainable build, strong security features, and modern wireless connectivity. If your work primarily involves productivity applications where extreme endurance and portability are paramount, and display color accuracy is not a major concern, the Latitude 5455 is an outstanding choice. Its ARM-based platform delivers on the promise of incredible efficiency, but potential buyers must be aware of the display’s color limitations and the current software compatibility nuances inherent in the ARM ecosystem, particularly for gaming or specialized applications.
You can check the prices and configurations in our Specs System: https://laptopmedia.com/series/dell-latitude-14-5455/
Pros
- Astonishing, class-leading battery life (22+ hours)
- Elegant, minimalist design with premium, sustainable aluminum construction
- Impressively thin and lightweight, highly portable
- Solid build quality with good fingerprint resistance
- Comfortable keyboard with backlight and integrated fingerprint reader
- Physical webcam privacy shutter and advanced IR camera features
- Dual USB4 40Gbps ports with Power Delivery and DisplayPort 2.1
- Cutting-edge Wi-Fi 7 connectivity
- PWM-free display backlight for comfortable viewing
- Meets Copilot+ AI PC requirements with integrated NPU
- Good sound quality
Cons
- Severely limited display color gamut (only 50% sRGB), unsuitable for color-sensitive work
- Mediocre color accuracy
- ARM-based architecture leads to very limited gaming performance and potential software compatibility issues
- Minimalist port selection (no native HDMI or Ethernet)
- Only one USB Type-A port
- SSD speeds on the 512GB model are somewhat limited compared to higher capacities
Author: Simeon NikolovEditor-in-Chief at LaptopMedia.com with 20+ years of experience in testing and analyzing laptops and mobile devices.
Author: Kroum NikolovHead of Engineering at LaptopMedia.com, inventor and innovator with 40+ years of experience in electronics and high technology.
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