Samsung Galaxy S21 (US/CH) vs. Samsung Galaxy A15 vs. Samsung Galaxy A25

Commercialization

Brand

Samsung

Samsung

Samsung

Model

Galaxy S21

Galaxy A15

Galaxy A25

Known Since Year

Sold since year

Discontinued since year

Colors Available

Phantom Gray, Phantom White, Phantom Violet, Phantom Pink

Brave Black, Optimistic Blue, Magical Blue, Personality Yellow

Brave Black, Personality Yellow, Fantasy Blue, Optimistic Blue

Communications

Cell Technology

5G

4G

5G

SIM/Chip Type

Nano-SIM and eSIM

Nano-SIM

Nano-SIM

Cell Bands

SM-G991U1: 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave
SM-G991B: 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6

1, 3, 5, 7, 8, 20, 28, 38, 40, 41

1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78 SA/NSA/Sub6

WiFi

802.11 a/b/g/n/ac/6, dual-band

802.11 a/b/g/n/ac, dual-band

802.11 a/b/g/n/ac, dual-band

Bluetooth

5.0, A2DP, LE

5.3, A2DP, LE

5.3, A2DP, LE

Geolocation

GPS, GLONASS, BDS, GALILEO

GPS, GALILEO, GLONASS, BDS, QZSS

GPS, GLONASS, GALILEO, BDS, QZSS

NFC

Yes

Yes

Yes

Broadcast Radio

FM radio

FM radio

No

Physical Ports

Data Connector

USB Type-C

USB Type-C

USB Type-C

Data Technology

USB Type-C 3.2, OTG

USB Type-C 2.0

USB Type-C 2.0

Headphones Connector

No

3.5mm TRS

No

CPU, Memory and Storage

Chipset

Qualcomm SM8350 Snapdragon 888 5G (5 nm)

Mediatek Helio G99 (6 nm)

Exynos 1280

CPU(s)

Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)

Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)

Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)

GPU

Adreno 660

Mali-G57 MC2

Mali-G68

Min. RAM

8 GiB

4 GiB

4 GiB

Max. RAM

8 GiB

8 GiB

8 GiB

Min. Storage

Max. Storage

Type of Storage

UFS 3.1

Display

Technology

Dynamic AMOLED 2X

Super AMOLED

Super AMOLED

Scratch Protection

Corning Gorilla Glass Victus+

Glass

Peak Brightness

1300 nits

800 nits

1000 nits

Refresh Rate

120 Hz

90 Hz

120 Hz

Size (Diam.)

6.1 in

6.5 in

6.5 in

Horizontal Resolution

1080 pixels

1080 pixels

1080 pixels

Vertical Resolution

2340 pixels

2340 pixels

2340 pixels

Pixel Density

425 ppi

396 ppi

396 ppi

Features and Software

Original Operative System

Android 11

Android 14, One UI 6

Android 14, One UI 6

Updated Operative System

Android 14, One UI 6.1

Biometric Locking

Fingerprint (under display, ultrasonic)

Fingerprint (side-mounted)

Fingerprint (side-mounted)

Other Sensors

accelerometer, gyro, proximity, compass, barometer

accelerometer, compass

accelerometer, gyro, compass

IP Rating

IP68

Main Camera

Resolution

12 MP

50 MP

50 MP

Focal Length

26 mm

27 mm

Lens Aperture

f/1.8

f/1.8

f/1.8

Image Stabilization

OIS

OIS

Auto-Focus

dual pixel PDAF

AF

PDAF

Pixel Size

1.8 μm

0.64 μm

Wide Camera

Resolution

12 MP

5 MP

8 MP

Focal Length

13 mm

Lens Aperture

f/2.2

f/2.2

f/2.2

Auto-Focus Technology

Super Steady video

Pixel Size

1.4 μm

1.12 μm

Telephoto Camera

Resolution

64 MP

Zoom

1.1x optical

Focal Length

29 mm

Lens Aperture

f/2

Image Stabilization Technology

OIS

Auto-Focus Technology

PDAF

Pixel Size

0.8 μm

2nd Telephoto Camera

Resolution

Zoom

Focal Length

Lens Aperture

Image Stabilization Technology

Auto-Focus Technology

Pixel Size

Front Camera

Resolution

10 MP

13 MP

13 MP

Focal Length

26 mm

Lens Aperture

f/2.2

f/2

f/2.2

Auto-Focus Technology

dual pixel PDAF

Pixel Size

1.22 μm

1.12 μm

Energy and Autonomy

Battery Type/Chemistry

Li-Ion

Li-Ion

Li-Ion

Battery Capacity

Battery Replacement Model

non-removable

non-removable

non-removable

Wired Charging Tech.

PD3.0

Wired Charging Power

25 W

25 W

25 W

Wireless Charging Tech.

Qi/PMA

No

n/a

Wireless Charging Power

15 W

Product Dimensions and Weight

Height

Width

Thickness

Weight

Packaging Dimensions and Weight

Length

Width

Height

Weight

Performance

AnTuTu (v8)

584 055

AnTuTu (v9)

316 967

443 234

AnTuTu (v10)

375 314

480 771

GeekBench (v5)

GeekBench (v5.1)

GeekBench (v6)