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Galaxy S21 Ultra 5G vs Google Pixel 6 Pro

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Galaxy S21 Ultra 5G

Starting at

£268.86£1,316.00 new
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Google Pixel 6 Pro

Starting at

£182.00
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(674 reviews)
(298 reviews)

What's the difference between the Galaxy S21 Ultra 5G and Google Pixel 6 Pro?

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro comes down to the chipset, battery and screen size. Refurbished, the Google Pixel 6 Pro starts at £182, £86.86 less than the Galaxy S21 Ultra 5G.

Refurbished from

£268.86£182

Chipset

Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm)Google Tensor (5 nm)

Battery

5000 mAh5003 mAh

Screen size

6.8 inch6.7 inch

Screen type

Dynamic AMOLED 2XLTPO AMOLED

Main camera

108 megapixels50 megapixels
  • Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 Ultra 5G, Google Tensor (5 nm) on the Google Pixel 6 Pro.
  • Battery: 5000 mAh on the Galaxy S21 Ultra 5G, 5003 mAh on the Google Pixel 6 Pro.
  • Screen size: 6.8 inch on the Galaxy S21 Ultra 5G, 6.7 inch on the Google Pixel 6 Pro.

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro specs

Both the Galaxy S21 Ultra 5G and the Google Pixel 6 Pro were released in 2021 and offer strong performance and features for users who want a high-end Android phone. The Galaxy S21 Ultra 5G suits those who want a larger screen, higher resolution, and more camera megapixels, along with a choice of three storage sizes including 512GB. The Pixel 6 Pro fits buyers looking for a slightly lighter and narrower phone with a screen that uses LTPO AMOLED technology and a USB Type-C 3.1 connector. Both phones have 12 GB of RAM, similar battery capacities, and support 5G connectivity, so they can handle demanding apps and stay current with software updates.

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro price

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro battery life and software updates

Durability covers battery capacity, update support, and physical form. Both phones share many core durability features but have subtle differences that affect daily use and handling.

Battery Capacity and Updates

The Galaxy S21 Ultra 5G has a 5000 mAh battery, while the Google Pixel 6 Pro has a slightly larger 5003 mAh one. This means users can expect similar endurance and long-term software support from either device.

Form and Operating System

Neither phone is foldable and both run Android. This means you get a familiar Android experience without the added complexity or fragility of foldable screens. The Pixel 6 Pro is marginally shorter and lighter, which might suit users who prefer a more compact and lighter device for everyday carry.

Battery

5000 mAh5003 mAh

Foldable

NoNo

Ip rating

IP68IP68

Software updates

Ended Feb 2026Ended Oct 2026, last Android 17

Wireless charging

YesYes

Year of release

20212021

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro performance

Performance is defined by chipset, RAM, and storage options. Both phones offer strong multitasking capabilities with 12 GB of RAM, but their processors and storage setups suit different usage styles.

Processor Choices

The Galaxy S21 Ultra 5G uses either the Exynos 2100 or Qualcomm Snapdragon 888 5G chipset, both built on a 5 nm process. The Google Pixel 6 Pro runs on Google's own Tensor chipset, also 5 nm. Each chipset offers a different balance of power and efficiency that may appeal to users based on software optimisation and personal preference.

Storage Options

The Galaxy S21 Ultra 5G comes with three storage sizes: 128 GB, 256 GB, and 512 GB. The Pixel 6 Pro offers 128 GB and 256 GB. Users who store a lot of media or apps might prefer the larger 512 GB option available with the Galaxy S21 Ultra 5G, while others may find the Pixel 6 Pro's storage sufficient.

Chipset

Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm)Google Tensor (5 nm)

RAM

12 GB12 GB

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro screen

Both phones provide high refresh rates and high-resolution displays, but differences in screen size and type affect viewing experience and power usage.

Size and Resolution

The Galaxy S21 Ultra 5G has a larger 6.8 inch screen with a resolution of 1440 by 3200 pixels, offering slightly more vertical pixels than the Pixel 6 Pro's 6.7 inch screen at 1440 by 3120 pixels. This extra screen space on the Galaxy is well suited for watching videos and multitasking.

Screen Technology

The Galaxy S21 Ultra 5G uses a Dynamic AMOLED 2X panel, while the Pixel 6 Pro features an LTPO AMOLED screen. The LTPO AMOLED can adjust refresh rates dynamically, which can help save battery during less demanding tasks, appealing to users who prioritise battery efficiency alongside screen quality.

Refresh rate

120 Hz120 Hz

Resolution

1440 x 32001440 x 3120

Screen size

6.8 inch6.7 inch

Screen type

Dynamic AMOLED 2XLTPO AMOLED

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro camera

Camera quality is a key consideration for many buyers. Differences in megapixels highlight who might benefit most from each phone's camera setup.

Front Camera Detail

The Galaxy S21 Ultra 5G has a 40 megapixel front camera, capturing more detail which benefits users who frequently take selfies or use video calls. The Pixel 6 Pro has an 11.1 megapixel front camera, which is still capable of clear images but with fewer pixels.

Main Camera Resolution

The main camera on the Galaxy S21 Ultra 5G offers 108 megapixels, making it suitable for users who want high-resolution photos with fine detail. The Pixel 6 Pro's 50 megapixel main camera suits everyday photography needs with a balance of detail and file size.

Camera type

Quadruple (4x)N/A

Front camera

40 megapixels11.1 megapixels

Main camera

108 megapixels50 megapixels

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro size and design

Other practical differences include size, weight, connectors, and network features, which influence handling and compatibility with accessories.

Size and Weight

The Galaxy S21 Ultra 5G measures 165.1 mm tall and 75.6 mm wide, weighing 227 g. The Pixel 6 Pro is slightly shorter at 163.9 mm, a bit wider at 75.9 mm, and lighter at 210 g. This makes the Pixel 6 Pro easier to hold for long periods and pocket, while the Galaxy offers a larger presence.

Connectors and Network

Both phones use USB-C connectors, with the Pixel 6 Pro specifying USB Type-C 3.1, which supports faster data transfer. Both support 5G networks and come unlocked with physical SIM plus eSIM capability, providing flexibility for network choices.

Memory Card and SIM

Neither phone has an SD card slot, so storage is fixed to the internal memory. Both support physical SIM cards alongside eSIM, allowing dual SIM setups for work and personal use or travel.

Carrier compatibility

UnlockedUnlocked

Connector

USB-CUSB-C 3.1

Depth

8.9 mm8.9 mm

Height

165.1 mm163.9 mm

Mobile network

5G5G

Release date

29 January 2021N/A

SD card slot

NoNo

SIM card

Physical SIM + eSIMPhysical SIM + eSIM

Weight

227 g210 g

Width

75.6 mm75.9 mm

Galaxy S21 Ultra 5G or Google Pixel 6 Pro: which should you buy?

Buy the Galaxy S21 Ultra 5G if

  • you want a higher-resolution main camera (108 megapixels vs 50 megapixels)
  • you want a higher-resolution front camera (40 megapixels vs 11.1 megapixels)

Buy the Google Pixel 6 Pro if

  • you want to spend less: it starts at £182, £86.86 less than the Galaxy S21 Ultra 5G
  • you want a lighter build (210 g vs 227 g)

What our customers say

Customers who buy the Galaxy S21 Ultra 5G often praise its condition, with many saying it looks almost new even in good condition. They appreciate the phone's speed and reliability, and several mention the large screen and camera quality positively. Some note minor cosmetic dents or issues with battery life, but many highlight satisfaction with performance and how the phone feels like a newer device.

Pixel 6 Pro customers report the phone working well and looking great, with many satisfied with the condition they received. Some mention battery life and heat as considerations. The camera receives positive comments for its quality, and users find the phone fast and easy to set up. A few note minor issues with the fingerprint scanner or speaker, but overall the Pixel 6 Pro is seen as a solid choice.

Both phones suit buyers who want a high-quality refurbished device with strong performance and up-to-date software. The Galaxy S21 Ultra 5G appeals to those wanting a larger screen and more camera detail, while the Pixel 6 Pro suits users looking for a lighter phone with good camera quality and a balanced feature set.

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro FAQs

Galaxy S21 Ultra 5G vs Google Pixel 6 Pro comes down to the chipset, battery and screen size. Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 Ultra 5G, Google Tensor (5 nm) on the Google Pixel 6 Pro. Battery: 5000 mAh on the Galaxy S21 Ultra 5G, 5003 mAh on the Google Pixel 6 Pro.

The Google Pixel 6 Pro is cheaper refurbished, from £182 compared with £268.86 for the Galaxy S21 Ultra 5G.

The Galaxy S21 Ultra 5G has 5000 mAh and the Google Pixel 6 Pro has 5003 mAh.

The Galaxy S21 Ultra 5G has a higher-resolution main camera: 108 megapixels vs 50 megapixels.

Updates for the Galaxy S21 Ultra 5G ended in Feb 2026. Updates for the Google Pixel 6 Pro ended in Oct 2026. Its last version is Android 17.

Refurbished, the Galaxy S21 Ultra 5G comes in 128GB, 256GB and 512GB, and the Google Pixel 6 Pro in 128GB and 256GB.

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