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Galaxy A72 vs Realme C21

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Galaxy A72

Starting at

£165.95£479.99 new
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Realme C21

Starting at

£198.00
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(19 reviews)
(1 review)

What's the difference between the Galaxy A72 and Realme C21?

Galaxy A72 vs Realme C21 comes down to the chipset, RAM and screen size. Refurbished, the Galaxy A72 starts at £165.95, £32.05 less than the Realme C21.

Refurbished from

£165.95£198

Chipset

Qualcomm SM7125 Snapdragon 720G (8 nm)Mediatek MT6765G Helio G35

RAM

8 GB4 GB

Screen size

6.7 inch6,5 inch

Screen type

Super AMOLEDIPS LCD

Main camera

64 megapixels13 megapixels
  • Chipset: Qualcomm SM7125 Snapdragon 720G (8 nm) on the Galaxy A72, Mediatek MT6765G Helio G35 on the Realme C21.
  • The Galaxy A72 has more RAM: 8 GB vs 4 GB.
  • Screen size: 6.7 inch on the Galaxy A72, 6,5 inch on the Realme C21.

Galaxy A72 vs Realme C21 specs

The Galaxy A72 and Realme C21 both launched in 2021 and share some key features like battery capacity and 4G support. The Galaxy A72 suits users wanting a larger, sharper screen with a Super AMOLED display, more RAM, and higher resolution cameras for detailed photos. It also offers more storage, making it good for those who keep many apps and media. The Realme C21 fits buyers looking for a device with a slightly smaller screen and fewer features, ideal for everyday use with basic apps and casual photography. Both phones have dual SIM slots and expand storage with microSD cards, giving flexibility for network and memory needs.

Galaxy A72 vs Realme C21 price

Storage

Galaxy A72 vs Realme C21 battery life and software updates

Both devices offer similar durability features including battery size and basic network compatibility.

Battery Capacity

Both the Galaxy A72 and Realme C21 come with a 5000 mAh battery. This capacity suits users who want a full day of typical use without frequent recharging.

Software Updates

This means both phones will run older versions of the Android operating system without the newest features or security patches.

Battery

5000 mAh5000 mAh

Fast charging

25 WN/A

Foldable

NoNo

Ip rating

IP67N/A

Software updates

Ended Mar 2025N/A

Year of release

20212021

Galaxy A72 vs Realme C21 performance

Performance varies between these two phones, affecting multitasking and how smoothly apps run. Storage options also differ, which impacts how much content you can keep on the device.

Processor and RAM

The Galaxy A72 uses the Qualcomm Snapdragon 720G chipset and includes 8 GB of RAM. This combination keeps everyday apps running smoothly and supports more demanding tasks. The Realme C21 has a Mediatek Helio G35 and 4 GB of RAM, which suits basic app use and simpler multitasking.

Storage Size

The Galaxy A72 is stocked with 128 GB of storage, offering plenty of room for apps, photos, and media. The Realme C21 has 64 GB, which fits everyday content needs but may require more frequent management of files.

Chipset

Qualcomm SM7125 Snapdragon 720G (8 nm)Mediatek MT6765G Helio G35

RAM

8 GB4 GB

Galaxy A72 vs Realme C21 screen

Screen differences affect how you view content like videos, photos, and text. These phones offer distinct display technologies, resolutions, and sizes to suit different preferences.

Screen Size

The Galaxy A72 has a 6.7 inch display, providing more room for watching videos and browsing. The Realme C21's screen is slightly smaller at 6.5 inches, which fits comfortably in the hand and pocket.

Screen Resolution and Type

The Galaxy A72 features a Super AMOLED screen with 1080 x 2400 resolution, delivering vibrant colours and sharp detail. The Realme C21 uses an IPS LCD with 720 x 1600 resolution, which suits everyday viewing but with less sharpness and brightness.

Refresh rate

90 HzN/A

Resolution

1080 x 2400720 x 1600

Screen size

6.7 inch6,5 inch

Screen type

Super AMOLEDIPS LCD

Galaxy A72 vs Realme C21 camera

Camera quality varies significantly between these devices, affecting how detailed your photos and selfies will be. Consider what kind of photography matters most to you when choosing.

Front Camera

The Galaxy A72's front camera has 32 megapixels, capturing detailed selfies and video calls with clarity. The Realme C21's front camera has 5 megapixels, which suits simple self-portraits and video chats.

Main Camera

With a 64 megapixel main camera, the Galaxy A72 is geared towards capturing high-resolution photos with more detail. The Realme C21 offers a 13 megapixel main camera, fitting for everyday snapshots and casual photography.

Camera type

Triple (3x)N/A

Front camera

32 megapixels5 megapixels

Main camera

64 megapixels13 megapixels

Galaxy A72 vs Realme C21 size and design

Other practical features include physical dimensions, SIM support, and expandability. Both phones offer similar connectivity options but differ slightly in size and weight.

SIM and Network

Both the Galaxy A72 and Realme C21 support dual physical SIM cards and 4G networks. This suits users who want to manage two phone numbers or use multiple carriers.

Expandable Storage

Each device has a microSDXC card slot, allowing you to increase storage beyond the built-in capacity. This is useful for storing extra photos, videos, and apps.

Size and Weight

The Galaxy A72 measures 165 mm in height, 77.4 mm in width, and 8.4 mm in depth, weighing 203 g. The Realme C21 is slightly taller at 165.2 mm, narrower at 76.4 mm, thicker at 8.9 mm, and lighter at 190 g. These differences affect how each phone feels in hand and pocket.

Carrier compatibility

UnlockedUnlocked

Connector

USB-C + Jack 3.5mmN/A

Depth

8.4 mm8.9 mm

Height

165 mm165.2 mm

Mobile network

4G4G

SD card slot

microSDXCmicroSDXC

SIM card

Dual Physical SIMDual Physical SIM

Weight

203 g190 g

Width

77.4 mm76.4 mm

Galaxy A72 or Realme C21: which should you buy?

Buy the Galaxy A72 if

  • you want to spend less: it starts at £165.95, £32.05 less than the Realme C21
  • you want more RAM (8 GB vs 4 GB)
  • you want an OLED screen

Buy the Realme C21 if

  • you want a lighter build (190 g vs 203 g)

Galaxy A72 vs Realme C21 FAQs

Galaxy A72 vs Realme C21 comes down to the chipset, RAM and screen size. Chipset: Qualcomm SM7125 Snapdragon 720G (8 nm) on the Galaxy A72, Mediatek MT6765G Helio G35 on the Realme C21. The Galaxy A72 has more RAM: 8 GB vs 4 GB.

The Galaxy A72 is cheaper refurbished, from £165.95 compared with £198 for the Realme C21.

Both have the same battery: 5000 mAh.

The Galaxy A72 has a higher-resolution main camera: 64 megapixels vs 13 megapixels.

Updates for the Galaxy A72 ended in Mar 2025. We don't have published update dates for the Realme C21.

Refurbished, the Galaxy A72 comes in 128GB, and the Realme C21 in 64GB.

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