Samsung

Samsung

Galaxy S21

Galaxy A15

2021

2023

2021

2023

Phantom Gray, Phantom White, Phantom Violet, Phantom Pink

Brave Black, Optimistic Blue, Magical Blue, Personality Yellow

5G

4G

Nano-SIM and eSIM

Nano-SIM

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

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

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

5.0, A2DP, LE

5.3, A2DP, LE

GPS, GLONASS, BDS, GALILEO

GPS, GALILEO, GLONASS, BDS, QZSS

Yes

Yes

FM radio

FM radio

USB Type-C

USB Type-C

USB Type-C 3.2, OTG

USB Type-C 2.0

No

3.5mm TRS

Qualcomm SM8350 Snapdragon 888 5G (5 nm)

Mediatek Helio G99 (6 nm)

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)

Adreno 660

Mali-G57 MC2

8 GiB

4 GiB

8 GiB

8 GiB

UFS 3.1

Dynamic AMOLED 2X

Super AMOLED

Corning Gorilla Glass Victus+

Glass

1300 nits

800 nits

120 Hz

90 Hz

6.1 in

6.5 in

1080 pixels

1080 pixels

2340 pixels

2340 pixels

425 ppi

396 ppi

Android 11

Android 14, One UI 6

Android 14, One UI 6.1

Fingerprint (under display, ultrasonic)

Fingerprint (side-mounted)

accelerometer, gyro, proximity, compass, barometer

accelerometer, compass

IP68

12 MP

50 MP

26 mm

f/1.8

f/1.8

OIS

dual pixel PDAF

AF

1.8 μm

12 MP

5 MP

13 mm

f/2.2

f/2.2

Super Steady video

1.4 μm

64 MP

1.1x optical

29 mm

f/2

OIS

PDAF

0.8 μm

10 MP

13 MP

26 mm

f/2.2

f/2

dual pixel PDAF

1.22 μm

Li-Ion

Li-Ion

non-removable

non-removable

PD3.0

25 W

25 W

Qi/PMA

No

15 W

584 055

316 967

375 314

1928

3238

1936