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Galaxy S21 5G vs Nokia G20

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Galaxy S21 5G

Starting at

£171.33£1,290.00 new
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Nokia G20

Starting at

£99.00
See options
(1,108 reviews)
(3 reviews)

What's the difference between the Galaxy S21 5G and Nokia G20?

Galaxy S21 5G vs Nokia G20 comes down to the chipset, RAM and battery. Refurbished, the Nokia G20 starts at £99, £72.33 less than the Galaxy S21 5G.

Refurbished from

£171.33£99

Chipset

Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm)Mediatek MT6765G Helio G35 (12 nm)

RAM

8 GB4 GB

Battery

4000 mAh5050 mAh

Screen size

6.2 inch6,52 inch

Screen type

Dynamic AMOLED 2XIPS LCD
  • Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 5G, Mediatek MT6765G Helio G35 (12 nm) on the Nokia G20.
  • The Galaxy S21 5G has more RAM: 8 GB vs 4 GB.
  • The Nokia G20 has a bigger battery: 5050 mAh vs 4000 mAh.

Galaxy S21 5G vs Nokia G20 specs

The Galaxy S21 5G and Nokia G20, both released in 2021, differ in features that suit different users. The Galaxy S21 5G offers a more powerful chipset and 8 GB of RAM for smoother multitasking and apps that need more memory. Its Dynamic AMOLED 2X screen provides sharper resolution and vibrant visuals on a slightly smaller display. It supports 5G networks and dual physical SIM plus eSIM for flexible connectivity. The Nokia G20 has a larger 6,52 inch IPS LCD screen and a higher capacity 5050 mAh battery, which suits users prioritising longer battery life and a bigger display. It includes a microSDXC slot for storage expansion and a higher megapixel main camera for detailed photos. Choose the Galaxy S21 5G for speed and screen quality, or the Nokia G20 for battery life and storage flexibility.

Galaxy S21 5G vs Nokia G20 price

Galaxy S21 5G vs Nokia G20 battery life and software updates

Durability matters for everyday use, especially battery life and software support.

Battery Capacity

The Nokia G20 has a 5050 mAh battery, which offers longer usage between charges, making it suitable for heavy or extended use away from power sources. The Galaxy S21 5G has a 4000 mAh battery, which suits users who may prioritise other features over maximum battery capacity.

Battery

4000 mAh5050 mAh

Foldable

NoNo

Software updates

Ended Feb 2026N/A

Year of release

20212021

Galaxy S21 5G vs Nokia G20 performance

Performance affects how smoothly your phone handles apps and multitasking. The two devices use different chipsets and RAM sizes, influencing their speed and responsiveness.

Chipset Technology

The Galaxy S21 5G uses advanced 5 nm chipsets, either the Exynos 2100 or Snapdragon 888 5G, designed for fast and efficient performance. The Nokia G20 uses a 12 nm Mediatek Helio G35 chipset, which suits everyday tasks and lighter app use.

Memory Size

With 8 GB of RAM, the Galaxy S21 5G can keep more apps open and run demanding applications smoothly. The Nokia G20 has 4 GB of RAM, which is appropriate for routine use and simpler multitasking.

Storage Options

The Galaxy S21 5G comes in 128GB and 256GB versions, offering ample space for apps, media, and files. The Nokia G20 is stocked with 64GB, which fits everyday storage needs but may require management or expansion via microSDXC.

Chipset

Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm)Mediatek MT6765G Helio G35 (12 nm)

RAM

8 GB4 GB

Galaxy S21 5G vs Nokia G20 screen

Screen quality affects how you view content and use your phone daily. These devices differ in resolution, size, and display technology.

Resolution and Clarity

The Galaxy S21 5G has a 1080 x 2400 resolution on its 6.2 inch Dynamic AMOLED 2X screen, delivering sharp and vibrant images with good contrast. This suits users who enjoy watching videos or using apps with detailed visuals.

Screen Size

The Nokia G20 offers a larger 6,52 inch IPS LCD screen, providing more room for reading and media, which benefits users who prefer bigger displays.

Screen Type

The Galaxy S21 5G's Dynamic AMOLED 2X panel offers deeper colours and better contrast compared to the Nokia G20's IPS LCD, which provides consistent viewing angles and brightness.

Refresh rate

120 HzN/A

Resolution

1080 x 2400720 x 1600

Screen size

6.2 inch6,52 inch

Screen type

Dynamic AMOLED 2XIPS LCD

Galaxy S21 5G vs Nokia G20 camera

Camera and front camera quality influence photo clarity and video calls. These two phones offer different strengths in their camera setups.

Main Camera Detail

The Nokia G20 features a 48 megapixel main camera, capturing photos with high detail that suits users who prioritise resolution in their shots.

Front Camera Quality

The Galaxy S21 5G has a 10 megapixel front camera, offering clearer selfies and video calls compared to the Nokia G20's 8 megapixel front camera.

Main Camera Megapixels

The Galaxy S21 5G has a 12 megapixel main camera, which balances detail and image processing suited for everyday photography.

Front camera

10 megapixels8 megapixels

Main camera

12 megapixels48 megapixels

Galaxy S21 5G vs Nokia G20 size and design

Other practical differences include network compatibility, physical size, and extra features like SIM options and storage expansion.

Network Support

The Galaxy S21 5G supports 5G mobile networks, offering faster data speeds where available. The Nokia G20 supports 4G, suitable for users who do not require 5G connectivity.

SIM Card Options

Galaxy S21 5G supports dual physical SIM cards plus eSIM, providing flexible options for managing multiple numbers or plans. The Nokia G20 supports dual physical SIM cards.

Expandable Storage

The Nokia G20 includes a microSDXC slot, allowing you to add extra storage easily. The Galaxy S21 5G does not have this slot.

Dimensions and Weight

The Galaxy S21 5G is slightly smaller and lighter, measuring 151.7 mm tall, 71.2 mm wide, 7.9 mm deep, and weighing 169 g, which suits those seeking a compact phone. The Nokia G20 is larger at 164.9 mm tall, 76 mm wide, 9.2 mm deep, and weighs 197 g, which may appeal to users who prefer a bigger device.

Connector Type

The Galaxy S21 5G uses USB Type-C, while the Nokia G20 uses USB-C.

Carrier compatibility

UnlockedUnlocked

Connector

USB-CUSB-C

Depth

7.9 mm9.2 mm

Height

151.7 mm164.9 mm

Mobile network

5G4G

SD card slot

NomicroSDXC

SIM card

Dual Physical SIM + eSIMDual Physical SIM

Weight

169 g197 g

Width

71.2 mm76 mm

Galaxy S21 5G or Nokia G20: which should you buy?

Buy the Galaxy S21 5G if

  • you want more RAM (8 GB vs 4 GB)
  • you want an OLED screen
  • you want a higher-resolution front camera (10 megapixels vs 8 megapixels)

Buy the Nokia G20 if

  • you want to spend less: it starts at £99, £72.33 less than the Galaxy S21 5G
  • you want a bigger battery (5050 mAh vs 4000 mAh)
  • you want a higher-resolution main camera (48 megapixels vs 12 megapixels)

Galaxy S21 5G vs Nokia G20 FAQs

Galaxy S21 5G vs Nokia G20 comes down to the chipset, RAM and battery. Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 5G, Mediatek MT6765G Helio G35 (12 nm) on the Nokia G20. The Galaxy S21 5G has more RAM: 8 GB vs 4 GB.

The Nokia G20 is cheaper refurbished, from £99 compared with £171.33 for the Galaxy S21 5G.

The Nokia G20 has a bigger battery: 5050 mAh vs 4000 mAh.

The Nokia G20 has a higher-resolution main camera: 48 megapixels vs 12 megapixels.

Updates for the Galaxy S21 5G ended in Feb 2026. We don't have published update dates for the Nokia G20.

Refurbished, the Galaxy S21 5G comes in 128GB and 256GB, and the Nokia G20 in 64GB.

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