Galaxy S21 Ultra 5G Vs Google Pixel 8

The expected practical lifespan of a smartphone is significantly influenced by its release date and the manufacturer's commitment to software updates.

• Release Timeline: The Galaxy S21 Ultra 5G was released in January 2021, making it an older device compared to the Google Pixel 8, which launched in October 2023.
• OS Support Duration: The Galaxy S21 Ultra 5G received four major Android OS updates, concluding with Android 15 (One UI 7.0) in early 2025, and its security updates ended in January 2026. In contrast, the Google Pixel 8 is notable for its extended support, promising seven years of both OS and security updates from its release. This means the Pixel 8 will receive software support for a considerably longer period.
• Repairability: Both devices are designed with modern smartphone construction, and their repairability scores are generally in line with their respective generations. Users considering a refurbished option for either model can benefit from devices that have undergone professional inspection and repair, ensuring quality and extending their usable life.

Performance in daily use is a key differentiator, with both devices offering robust capabilities for various tasks.

• Processor Capabilities: The Galaxy S21 Ultra 5G, with its 5nm octa-core processor, handles demanding applications and multitasking smoothly, providing a responsive experience for users. The Google Pixel 8 features a newer generation processor designed by Google, which is optimized for artificial intelligence tasks and delivers efficient performance for everyday use, gaming, and advanced photo editing features.
• Storage and RAM: The Galaxy S21 Ultra 5G offers configurations with up to 16GB of RAM and up to 512GB of internal storage, catering to users who require extensive storage and robust multitasking capabilities. The Pixel 8 comes with 8GB of RAM and storage options up to 256GB, which is sufficient for most users and typical application loads. Neither device includes a microSD card slot for expandable storage.
• Battery Behavior: The Galaxy S21 Ultra 5G is equipped with a 5000mAh battery, which users often report lasts a full day even with heavy usage. The Pixel 8 has a 4575mAh battery, and Google states it can provide beyond 24-hour battery life, extending up to 72 hours with its Extreme Battery Saver mode.

The visual experience on both smartphones is delivered through high-quality displays, though with some notable differences.

• Display Technology and Resolution: The Galaxy S21 Ultra 5G features a 6.8-inch Edge QHD+ Dynamic AMOLED 2X display, offering a resolution of 3200x1440 pixels, resulting in sharp and detailed visuals. The Google Pixel 8 has a 6.2-inch FHD+ OLED display with a resolution of 2400x1080 pixels, providing clear images in a more compact form factor.
• Brightness and Refresh Rate: The S21 Ultra 5G's display can reach a peak brightness of 1500 nits and features an adaptive refresh rate that ranges from 10Hz to 120Hz, allowing for smooth scrolling and power efficiency. The Pixel 8's display, branded as 'Actua Display', offers a peak brightness of 2000 nits and a 60-120Hz adaptive refresh rate, ensuring good visibility in bright conditions and fluid motion.
• Viewing Experience: The larger, higher-resolution screen of the S21 Ultra 5G provides an expansive and immersive viewing experience, particularly for media consumption and detailed work. The Pixel 8's display, while smaller, offers excellent color accuracy and brightness, making it suitable for everyday tasks and outdoor use.

Both devices offer advanced camera systems, but they approach photography with different strengths and capabilities.

• Rear Camera Systems: The Galaxy S21 Ultra 5G boasts a versatile quad-camera setup, including a 108MP main sensor, a 12MP ultra-wide lens, and two 10MP telephoto lenses providing 3x and 10x optical zoom, culminating in a 100x Space Zoom feature. This allows for significant flexibility in capturing subjects at various distances. The Google Pixel 8 features a dual-camera system with a 50MP main sensor and a 12MP ultra-wide lens, focusing on computational photography to enhance image quality.
• Photography Performance: The S21 Ultra 5G excels in capturing highly detailed images, especially with its high-resolution main sensor and powerful zoom capabilities, making it suitable for diverse photographic scenarios. The Pixel 8 leverages its advanced processing to deliver consistent image quality across various conditions, with a strong emphasis on accurate color reproduction, dynamic range, and low-light performance through features like Night Sight.
• Video Recording and Features: The Galaxy S21 Ultra 5G supports 8K video recording at 24 frames per second and 4K at 60 frames per second, along with professional video modes. The Pixel 8 records 4K video at up to 60 frames per second and includes AI-powered video enhancements such as Magic Editor and Audio Magic Eraser.

Beyond core features, several practical elements contribute to the overall user experience of these smartphones.

• Connectivity and Ports: Both the Galaxy S21 Ultra 5G and the Google Pixel 8 support 5G connectivity for fast mobile data. The S21 Ultra 5G includes Wi-Fi 6E and Bluetooth 5.2, while the Pixel 8 features the newer Wi-Fi 7 and Bluetooth 5.3, offering potentially faster and more stable wireless connections. Both devices utilize a USB-C port for charging and data transfer, but neither includes a traditional 3.5mm headphone jack.
• Biometric Security: The Galaxy S21 Ultra 5G uses an ultrasonic in-display fingerprint sensor for secure unlocking. The Pixel 8 offers both an in-display fingerprint sensor and face recognition for biometric authentication.
• Design and Build: The Galaxy S21 Ultra 5G has dimensions of 165.1 x 75.6 x 8.9mm and weighs around 227-229g, featuring a premium build with a curved display. The Pixel 8 is more compact and lighter at 150.5 x 70.8 x 8.9mm and 187g, with a refined design. Both devices offer water and dust resistance.