Galaxy S21 Ultra 5G Vs iPhone 16 Pro

Galaxy S21 Ultra 5G
Galaxy S21 Ultra 5G
Starting at

Refurbished price:£187.00

Versus £1,800.00 new

See options
iPhone 16 Pro
iPhone 16 Pro
Starting at

Refurbished price:£564.00

Versus £999.00 new

See options

Ratings

The Samsung Galaxy S21 Ultra 5G, an Android flagship released in January 2021, and the Apple iPhone 16 Pro, an iOS flagship launched in September 2024, represent different generations and operating systems in the premium smartphone market. While the Galaxy S21 Ultra offers a robust Android experience with a versatile camera system, the iPhone 16 Pro delivers Apple's latest advancements in processing power, display technology, and camera capabilities, running on the iOS ecosystem.

Scores

Durability

When considering the long-term usability of these devices, their respective release timelines and software support policies are key factors.

  • Release and Updates: The Galaxy S21 Ultra 5G, released in early 2021, launched with Android 11 and has received several major Android updates, currently supporting Android 14. Samsung typically provides 4-5 years of major OS updates and 5 years of security updates for its flagship devices. The iPhone 16 Pro, launched in late 2024 with iOS 18, benefits from Apple's longer software support, generally extending to 6-7 years of major iOS updates.
  • Practical Lifespan: Users of the Galaxy S21 Ultra can expect continued functionality for everyday tasks, though major new software features might become less frequent over time. The iPhone 16 Pro, being a newer device, offers a longer practical lifespan with access to the latest iOS features and security enhancements for an extended period.
  • Build Durability: Both devices feature premium construction designed for resilience. The Galaxy S21 Ultra incorporates Gorilla Glass Victus on its front and back, paired with an aluminum frame, and carries an IP68 rating for water and dust resistance. The iPhone 16 Pro utilizes a Ceramic Shield front, a textured matte glass back, and a titanium frame, also boasting an IP68 rating for water and dust resistance.

Year of Release

2021

2024

Compatible with latest Update

Yes

Yes

Foldable

No

No

Performance

Performance is a critical differentiator, reflecting the advancements in mobile processing over several years.

  • Processing Power: The Galaxy S21 Ultra 5G is powered by a processor that was top-tier at its 2021 release, enabling smooth operation for most applications and multitasking. The iPhone 16 Pro, featuring Apple's A18 Pro chip, offers significantly enhanced processing capabilities, resulting in faster app loading, more fluid multitasking, and superior performance in demanding applications, including advanced gaming and AI-driven tasks.
  • Multitasking and Responsiveness: The Galaxy S21 Ultra comes with substantial RAM options, allowing for efficient multitasking. The iPhone 16 Pro, with its optimized operating system and 8GB of RAM, provides a highly responsive user experience, handling numerous open applications and complex workflows with ease.
  • Battery Behavior: The Galaxy S21 Ultra, equipped with a 5000 mAh battery, generally provides reliable all-day power for typical usage, with fast charging capabilities. The iPhone 16 Pro features an increased battery capacity compared to its predecessors, and users report it offers excellent endurance, often lasting through a full day of heavy use.

Memory (GB)

12 GB

8 GB

Screen quality

The visual experience on both devices is immersive, though they differ in their display technologies and characteristics.

  • Display Technology and Size: The Galaxy S21 Ultra 5G features a large 6.8-inch Dynamic AMOLED 2X display, offering vibrant colors and deep blacks. The iPhone 16 Pro has a 6.3-inch Super Retina XDR OLED display, which also provides rich colors and excellent contrast.
  • Resolution and Clarity: Both phones offer high resolutions, with the Galaxy S21 Ultra at 1440 x 3200 pixels and the iPhone 16 Pro at 2868 x 1230 pixels, ensuring sharp text and detailed images.
  • Brightness and Refresh Rate: The Galaxy S21 Ultra features an adaptive 120Hz refresh rate and a peak brightness of 1500 nits, providing smooth scrolling and good visibility outdoors. The iPhone 16 Pro also boasts a ProMotion display with an adaptive refresh rate up to 120Hz, and offers a typical brightness of 1000 nits, a peak HDR brightness of 1600 nits, and can reach 2000 nits peak brightness outdoors, enhancing visibility in bright conditions.

Resolution

1440 x 3200

1206 x 2622

Screen type

Dynamic AMOLED 2X

LTPO Super Retina XDR OLED

Audiovisual

Both smartphones offer advanced camera systems, catering to different photographic preferences and capabilities.

  • Rear Camera Systems: The Galaxy S21 Ultra 5G features a versatile quad-camera setup, including a 108MP main sensor, a 12MP ultrawide, and two 10MP telephoto lenses providing 3x and 10x optical zoom. The iPhone 16 Pro comes with an upgraded triple-camera system, featuring a 48MP wide lens, a 48MP ultrawide lens, and a 12MP telephoto lens with 5x optical zoom.
  • Photography Performance: The Galaxy S21 Ultra is known for its detailed images and impressive zoom capabilities, including up to 100x digital Space Zoom. The iPhone 16 Pro offers enhanced low-light performance across its lenses and improved computational photography, resulting in sharp and vibrant photos in various conditions.
  • Video and Audio: The Galaxy S21 Ultra can record video up to 8K resolution. The iPhone 16 Pro supports 4K video recording at up to 120 frames per second, offering high-resolution and high-frame-rate video capture, along with improved audio recording capabilities.

Main camera

108 megapixels

48 megapixels

Front camera

40 megapixels

12 megapixels

Miscellaneous

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

  • Connectivity: Both phones support 5G connectivity for fast mobile data. The Galaxy S21 Ultra includes Wi-Fi 6E and Bluetooth 5.2. The iPhone 16 Pro features more advanced connectivity with Wi-Fi 7 and a newer Bluetooth standard, offering potentially faster and more stable wireless connections.
  • Ports and Biometrics: Both devices utilize a USB-C port for charging and data transfer, omitting a traditional headphone jack. The Galaxy S21 Ultra features an ultrasonic under-display fingerprint sensor for secure unlocking. The iPhone 16 Pro relies on Face ID for biometric authentication and introduces a new physical 'Capture' button for enhanced camera control.
  • Design and Handling: The Galaxy S21 Ultra is a larger and heavier device, weighing 229g. The iPhone 16 Pro, while still substantial, is lighter at 199g and features a titanium frame, contributing to its durable yet manageable feel. Both offer premium build materials and an IP68 rating for water and dust resistance.

Weight

227 g

199 g

Screen size (in)

6.8

6.3

Mobile network

5G

5G

SIM card

Dual Physical SIM + eSIM

Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

Connector

USB-C

USB-C (USB 3)

User sentiment for the Samsung Galaxy S21 Ultra 5G often praises its versatile camera system, particularly its zoom capabilities, and its vibrant, high-resolution display. Some users have noted its substantial size and weight, and while battery life is generally good, heavy usage can necessitate mid-day charging. The iPhone 16 Pro is frequently lauded for its powerful performance, extended software support, and significant camera enhancements, especially in low-light conditions and video recording. Its improved battery life and refined display are also common points of appreciation.

For users prioritizing a highly versatile camera with extensive zoom options and a large, immersive Android display, the Galaxy S21 Ultra 5G remains a capable choice. Those who value cutting-edge performance, a longer software support lifespan, advanced camera features with a focus on computational photography, and the iOS ecosystem will find the iPhone 16 Pro well-suited to their needs. Both devices offer premium experiences, but cater to slightly different priorities in terms of operating system preference, camera specialization, and long-term software commitment.

For those seeking a more sustainable and quality-assured option, considering a refurbished version of either device can be an eco-friendly alternative to purchasing new.

See all articles

Our recent comparisons