The Nokia X400 5G embodies the brand’s distinctive Nordic design language, characterized by clean lines, practical elegance, and exceptional build quality. The device features a unibody construction crafted from recycled aluminum, complemented by Gorilla Glass Victus 2 on both the front and rear panels. This combination results in a device that feels substantial and premium while maintaining Nokia’s reputation for durability.
With dimensions of 156.8 x 73.9 x 8.5mm and weighing 189 grams, the X400 strikes an excellent balance between screen real estate and one-handed usability. The device boasts an IP68 rating for water and dust resistance, allowing it to withstand submersion in up to 1.5 meters of fresh water for 30 minutes—a feature that reinforces Nokia’s heritage of building phones that last.
The device is available in four thoughtfully selected colorways: Midnight Blue, Arctic Silver, Forest Green, and Sandstone Gold. Each finish features a subtle texture that enhances grip while resisting fingerprints, addressing a common pain point in modern smartphone design.
Nokia X400 5G Display Technology
The Nokia X400 5G features a 6.5-inch AMOLED display with a resolution of 2400 x 1080 pixels (FHD+). The panel supports a 120Hz refresh rate with adaptive capabilities that can scale down to 10Hz when displaying static content, optimizing battery life without compromising on user experience.
The display offers excellent color reproduction with 100% coverage of the DCI-P3 color gamut and HDR10+ certification. Peak brightness reaches 1,200 nits, ensuring good visibility even in bright outdoor conditions. Nokia has implemented a low blue light certification to reduce eye strain during prolonged usage.
A standout feature is Nokia’s PureDisplay 4.0 technology, which leverages AI to enhance standard definition content in real-time, optimize contrast, and improve visibility in challenging lighting conditions. The display is protected by Gorilla Glass Victus 2, offering enhanced drop and scratch resistance compared to previous generations.
The under-display fingerprint sensor is both responsive and accurate, complementing the device’s face recognition capabilities for versatile biometric authentication.
Nokia X400 5G Performance Specifications
Under the hood, the Nokia X400 5G is powered by the Qualcomm Snapdragon 7 Gen 3 processor, a capable chipset that balances performance and power efficiency. This octa-core processor is built on a 4nm manufacturing process, featuring one prime core clocked at 2.8GHz, three performance cores at 2.5GHz, and four efficiency cores at 1.8GHz.
The device comes in two configurations: 8GB RAM with 128GB storage and 12GB RAM with 256GB storage. Both variants utilize LPDDR5 RAM and UFS 3.1 storage for quick data access and app loading. Storage can be expanded via microSD card up to 1TB, a feature increasingly rare in contemporary smartphones.
Nokia has implemented a vapor chamber cooling system to maintain consistent performance during intensive tasks such as gaming or video processing. This thermal management solution allows the device to sustain peak performance for extended periods without throttling.
Nokia X400 5G Camera Capabilities
Photography has become a key battleground for smartphone manufacturers, and Nokia brings its imaging heritage to bear with the X400 5G’s camera system, co-engineered with ZEISS Optics:
- The primary camera features a 50MP Sony IMX766 sensor with optical image stabilization (OIS), pixel binning technology, and an f/1.8 aperture
- A 12MP ultrawide camera with a 120° field of view and autofocus enables macro photography
- An 8MP telephoto lens provides 3x optical zoom with OIS for steady long-range shots
- A 2MP depth sensor assists with portrait mode effects
The camera system is supported by Nokia’s PureView computational photography algorithms, which leverage the device’s AI capabilities to enhance image quality. Key features include ZEISS Portrait modes with authentic bokeh effects, AI-enhanced night mode, and action shot capabilities that capture clear images of moving subjects.
The front-facing camera employs a 32MP sensor with pixel binning technology, delivering detailed selfies in various lighting conditions. It also supports 4K video recording and Nokia’s AI beauty enhancements that appear natural rather than artificial.
Video capabilities include 4K recording at 60fps from the main camera with electronic image stabilization working in tandem with OIS for smooth footage. The device also features Nokia’s OZO Audio technology with three microphones for spatial audio recording.
Nokia X400 5G Battery Life and Charging
The Nokia X400 5G houses a 4,800mAh battery that Nokia claims can provide up to two days of moderate usage. This longevity is achieved through a combination of hardware efficiency and software optimization.
Charging capabilities include 33W wired fast charging via USB-C, which can replenish the battery from 0% to 50% in approximately 30 minutes. The device also supports 15W wireless charging using the Qi standard and 5W reverse wireless charging for powering accessories like earbuds or smartwatches.
Nokia’s Adaptive Battery feature learns usage patterns to optimize power consumption, while the Battery Saver mode extends operation time when needed. The company promises that the battery will maintain at least 80% of its original capacity after 800 complete charge cycles, roughly equivalent to two years of typical use.
Nokia X400 5G Software Experience
The Nokia X400 5G runs on Android 15 with Nokia’s minimalist UI overlay. In keeping with the brand’s approach since its revival under HMD Global, the software experience remains close to stock Android, with thoughtful additions rather than wholesale changes.
Nokia guarantees four years of major Android updates and five years of monthly security patches, positioning the X400 5G as a device with excellent longevity. This commitment to software support enhances the device’s value proposition and environmental credentials by extending its useful lifespan.
The user interface is clean and intuitive, free from bloatware and duplicate applications that plague many competing devices. Nokia has integrated several AI-powered features, including:
- Smart Reply, which suggests contextual responses across messaging applications
- Adaptive Notifications that prioritize alerts based on user behavior
- Nokia Scribble, which converts handwritten notes to text and can translate between languages
- My Device, an assistant that helps optimize device settings and troubleshoot issues
The Nokia X400 5G also features enhanced privacy controls, including a privacy dashboard that provides a comprehensive view of which applications are accessing sensitive permissions.
Nokia X400 5G Connectivity and Additional Features
As the name suggests, the X400 5G offers comprehensive 5G connectivity across sub-6GHz bands, enabling faster download speeds and lower latency where 5G networks are available. The device also supports Wi-Fi 6E, Bluetooth 5.3, and NFC for contactless payments.
Audio performance is a highlight, with stereo speakers tuned by Nokia’s OZO Audio team delivering balanced sound with good spatial separation. The device retains the 3.5mm headphone jack, an increasingly rare feature that will appeal to users with wired headphones. For wireless audio, the device supports aptX Adaptive and LDAC codecs for high-quality Bluetooth audio streaming.
Additional features include a customizable Action Button that can trigger specific functions or applications, a notification LED embedded in the power button, and an FM radio receiver—a thoughtful inclusion for markets where radio remains a popular medium.
Nokia X400 5G Sustainability Initiatives
Nokia has placed a strong emphasis on sustainability with the X400 5G. The device’s frame utilizes 100% recycled aluminum, while the packaging is plastic-free and made from recycled materials. The company offers a comprehensive recycling program for old devices and has designed the X400 5G with repairability in mind, making components like the battery and display relatively easy to replace.
The extended software support timeline also contributes to sustainability by reducing the need for frequent device upgrades. Nokia has committed to publishing the device’s carbon footprint and providing transparency regarding the materials used in manufacturing.
Nokia X400 5G Market Positioning and Value Proposition
The Nokia X400 5G is positioned as a mid-premium offering, providing flagship-adjacent features at a more accessible price point. With a starting price of $499 for the 8GB/128GB variant and $599 for the 12GB/256GB model, the device offers compelling value compared to ultra-premium smartphones that often exceed $1,000.
Nokia is targeting professionals and tech enthusiasts who prioritize reliability, software longevity, and a balanced feature set over cutting-edge specifications. The device’s durability and extended support timeline make it particularly appealing to business customers and those who prefer to keep their devices for multiple years.
Nokia X400 5G
The Nokia X400 5G represents a thoughtful approach to smartphone design in an era where differentiation becomes increasingly challenging. Rather than engaging in the specifications arms race that characterizes the ultra-premium segment, Nokia has focused on delivering a balanced, reliable device that excels in the fundamentals while offering enough premium features to satisfy most users.
The combination of a clean software experience, impressive build quality, capable camera system, and extended support timeline creates a compelling package that honors Nokia’s heritage while embracing modern technology. For users seeking a smartphone that prioritizes longevity and reliability over flashy gimmicks, the X400 5G stands as one of the most sensible options in the mid-premium segment.