Samsung Galaxy S21 5G vs Samsung Galaxy S25: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy S21 5G vs Samsung Galaxy S25. The complete information of specifications to decide which to buy.

Compare
Samsung Galaxy S21 5GSamsung Galaxy S21 5GGlobal · 8GB · 128GB · SM-G991B
Samsung Galaxy S25Samsung Galaxy S25Global · 12GB · 128GB · SM-S931B
Technical data sheets

Basics
Samsung Galaxy S21 5G
Samsung Galaxy S21 5G
Global · 8GB · 128GB · SM-G991B
View datasheet
vs
Samsung Galaxy S25
Samsung Galaxy S25
Global · 12GB · 128GB · SM-S931B
View datasheet
vs

Score
Ki Cost-effective
Score		 8.0 Ki Cost-effective
Score 		9.0 Ki Cost-effective
Score
Design and Screen score 7.1Design & Materials 8.0Design & Materials
Performance and Hardware score 7.0Performance & Hardware 8.7Performance & Hardware
Camera score 7.9Camera 8.4Camera
Connectivity score 8.3 Connectivity 8.8 Connectivity
Battery score 5.3 Battery 5.4 Battery

User reviews
User score
8.5
93 reviews
9.1
46 reviews

Technical specifications of the Samsung Galaxy S21 5G vs Samsung Galaxy S25

Specs stores to buy Samsung Galaxy S21 5G Samsung Galaxy S21 5G
Global · 8GB · 128GB · SM-G991B 		Samsung Galaxy S25 price comparison Samsung Galaxy S25
Global · 12GB · 128GB · SM-S931B
Inches 6.2" 6.2"
Resolution FHD+ FHD+
Usable surface 88% useful 91% useful
Aspect Ratio 20:9 19.5:9
Dimensions 71.2 mm
151.7 mm
7.9 mm 		70.5 mm
146.9 mm
7.2 mm
Weight 169 g 162 g
Micro Exynos 2100
Octa-Core 		SnapD. 8 Elite
Octa-Core
RAM 8 GB RAM 12 GB RAM
Storage 128 GB 128 GB
AnTuTu 899.100
v11 		3.135.223
v11
Battery 4000 mAh 4000 mAh
Main Camera 1
12 Mpx · ƒ/1.8
IMX555
2 3 		1
50 Mpx · ƒ/1.8
GN3
2 3
Selfie Camera SELF 10 Mpx · ƒ/2.2 SELF 12 Mpx · ƒ/2.2
Bands
OS Android 14 Upside-down cake Android 16

Brand
Brand Samsung Samsung
Aliases SM-G991B --

Release Date
Release date January 2021,
5 years ago 		January 2025,
1 year ago
State On Sale On Sale
Market Global Global

Design & Materials

Structure

Samsung Galaxy S21 5G
Samsung Galaxy S25
Samsung Galaxy S21 5G
Samsung Galaxy S25
Size
71.2 mm • 151.7 mm • 7.9 mm
See more details
 Print 3D Model
70.5 mm • 146.9 mm • 7.2 mm
See more details
 Print 3D Model
Weight 169 g 162 g
Usable surface 88 % 91 %
Materials Plastic, Aluminium Aluminium alloy, Corning Gorilla Glass Victus 2
Resistance IP68 IP68
Colors
White
Pink
Gray
Violet
Black
Blue
Gold
Red
Gray
Green
Cyan

Screen
Diagonal 6.2" 6.2"
Type AMOLED • Dynamic Amoled 2X AMOLED • Dynamic LTPO Amoled 2X
Aspect Ratio 20:9 19.5:9
Resolution FHD+
1080 x 2400 px 		FHD+
1080 x 2340 px
Density 424 Pixels per inch 416 Pixels per inch

Others

Others
  • Hole-punch Notch
  • Refresh rate 120 Hz
  • Peak brightness - 1300 cd/m²
  • Always-On Display
  • HDR10+
  • Scratch resistant
  • Corning Gorilla Glass Victus
  • Capacitive
  • Multi-touch
  • Frameless
  • Hole-punch Notch
  • 1-120 Hz refresh rate
  • Touch sampling rate 240 Hz
  • Peak brightness - 2600 cd/m²
  • Always-On Display
  • HDR10+
  • DCI-P3
  • Scratch resistant
  • Corning Gorilla Glass Victus 2
  • Capacitive
  • Multi-touch
  • Frameless
  • LTPO (Low Temperature PolySilicon oxide)

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
8.1
8.4
Do you think it's a nice phone?
9.2
9.5
Is it comfortable?
9.4
9.7
Can you see it well in the sunlight?
8.7
9.4
Number of reviews
93 reviews
46 reviews

Performance & Hardware

Processor
Model Samsung Exynos 2100 Qualcomm Snapdragon 8 Elite
CPU 1x Cortex-X1 2,91 GHz + 3x Cortex-A78 2,81 GHz + 4x Cortex-A55 2,21 GHz. 2x4.32 GHz Oryon V2 Phoenix L+ 6x3.53 GHz Oryon V2 Phoenix M
Type Octa-Core Octa-Core
Manufacturing 5 nm 3 nm
64 Bits Yes Yes

Graphics
GPU ARM Mali-G78 MP14 Adreno 830

RAM
RAM 8 GB 12 GB
Type RAM LPDDR5 RAM LPDDR5X

Antutu
Score
899.100
Antutu v11
Overall performance better than 82% of devices
See more details
3.135.223
Antutu v11
Overall performance better than 98% of devices
See more details

Storage
Capacity 128 GB 128 GB
Type UFS Storage 3.1 UFS Storage 4.0
SD Slot No No

Security
Fingerprint Yes, in screen Yes, in screen

Sensors
Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Barometer
  • Hall
  • Geomagnetic
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Gyroscope
  • Barometer
  • Hall
  • Geomagnetic

Audio

Audio
  • Dolby Atmos
  • Noise cancellation microphone
  • Stereo Speakers
  • Noise cancellation microphone
  • Stereo Speakers
  • 2 microphones

Others
Notifications LED -- --
Cooling system No Yes
Gaming buttons No No

User reviews

Does it have good sound?
8.8
9.2
Does it work smoothly in everyday use?
8.8
9.7
What's your experience been with demanding games?
8.0
9.2
Number of reviews
93 reviews
46 reviews

Camera

Main
No. of cameras Triple rear camera Triple rear camera
1
Camera type

Standard

Standard
Resolution 12 Mpx 50 Mpx
Aperture ƒ/ 1.8 ƒ/ 1.8
Optical zoom -- --
View angle -- --
Sensor Sony IMX555 Samsung GN3
Type CMOS ISOCELL
ISO -- --
Pixel size 1.80 µm 1.00 µm
Pixel Binning -- 1-4 (2x2)
Sensor size 1/1.76" 1/1.57"
2
Camera type

Wide Angle + Macro

Wide Angle lens
Resolution
12.2 Mpx
12.2 Mpx
Aperture
ƒ/ 2.2
ƒ/ 2.2
Optical zoom
--
--
View angle
--
--
Sensor
Sony IMX563
Sony IMX564
Type
CMOS
CMOS
Pixel size
1.40 µm
1.40 µm
Pixel Binning
--
--
Sensor size
1/2.55"
1/2.55"
3
Camera type

Telephoto + portrait

Telephoto + portrait
Resolution
64 Mpx
10 Mpx
Aperture
ƒ/ 2.0
ƒ/ 2.4
Optical zoom
--
--
View angle
--
--
Sensor
Samsung Bright S5KGW2
Samsung S5K3K1
Type
ISOCELL
ISOCELL
Pixel size
0.80 µm
1.00 µm
Pixel Binning
--
--
Sensor size
1/1.72"
1/3.9"

Features
Flash LED LED
Optical Stabilisation Yes Yes
Slow Motion Video Yes,
960 fps 		Yes,
240 fps
Others
  • 4K Video
  • 8K Video
  • Digital zoom
  • Optical zoom
  • Triple camera
  • Digital image stabilization
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Continuous autofocus
  • Manual focus
  • Phase detection autofocus (PDAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW
  • Night Mode
  • Night Mode 2.0
  • 4K Video
  • 8K Video
  • Digital zoom
  • Optical zoom
  • Triple camera
  • Digital image stabilization
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Phase detection autofocus (PDAF)
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 10 Mpx 12 Mpx
Aperture ƒ/ 2.2 ƒ/ 2.2
Optical zoom -- --
View angle -- --
Sensor Sony IMX374 Samsung S5K3LU
Type CMOS CMOS
Pixel size 1.22 µm --
Pixel Binning -- --
Sensor size 1/3.2" --
Others
--
--

DxOMark Score
DxOMark Score
111
Mobile
118
Photo
90
Video
132
Selfie
125
Photo
145
Video
 --

User reviews

Quality of daytime photos
9.2
9.1
Quality of nighttime photos
8.2
8.0
Quality of selfies
8.5
8.4
Does it have a powerful flash?
8.8
8.8
Number of reviews
93 reviews
46 reviews

Connectivity

Network compatibility

5G
  • n1 (2100)
  • n3 (1800)
  • n5 (850)
  • n7 (2600)
  • n8 (900)
  • n20 (800)
  • n28b (700)
  • n28a (700)
  • n38 (2600)
  • n40 (2300)
  • n41 (2500)
  • n66 (1700)
  • n77 (3700)
  • n78 (3500)
  • n1 (2100)
  • n2 (1900 PCS)
  • n3 (1800)
  • n5 (850)
  • n7 (2600)
  • n8 (900)
  • n12 (700)
  • n20 (800)
  • n25 (1900)
  • n26 (850)
  • n28b (700)
  • n28a (700)
  • n38 (2600)
  • n40 (2300)
  • n41 (2500)
  • n66 (1700)
  • n75 (1500)
  • n77 (3700)
  • n78 (3500)
4G LTE
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B32 (1500)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
3G
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM / eSIM
  • Nano SIM / eSIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • WiFi 6 (802.11ax)
  • WiFi 6E
  • WiFi 7 (802.11be)
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO

Bluetooth
Version Bluetooth 5.0 LE Low energy consumption Bluetooth 5.4 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HSP (Headset Profile)
  • LE (Low Energy)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • ANT+
  • APT-x
  • SBC
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HSP (Headset Profile)
  • LE (Low Energy)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • ANT+
  • APT-x
  • LDAC
  • SBC

Navigation
Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo
  • GPS (L1+L5)
  • Galileo (E1+E5a)
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • QZSS
  • Galileo
  • GPS (L1+L5)
  • GLONASS (L1)
  • BeiDou (B1)
  • Galileo (E1+E5a)
  • QZSS (L1 + L5)

USB
USB
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.1
  • Charging
  • Host
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.2

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 0.460 W/Kg on head
1.510 W/Kg on body 		--
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 -- --

Others
Others
  • NFC
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • ANT+
  • NFC
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • VoWiFi
  • eSIM

User reviews

Does it have good coverage for calls?
8.8
9.1
Quality of the GPS
8.9
9.4
And the WiFi?
9.0
9.3
Number of reviews
93 reviews
46 reviews

Battery

Battery
Capacity
4000 mAh
See more details
4000 mAh
See more details
Type Li-Polymer Li-Ion
Fast charge Yes,
25.0W 		Yes,
25.0W
Others
  • Wireless charging
  • Reverse charging
  • Non-removable
  • Bypass Charging
  • Wireless charging
  • Reverse charging
  • Non-removable

User reviews

How long does the battery last?
  • 15%
    Less than half day
  • 46%
    Less than a day
  • 28%
    One day
  • 9%
    More than one day
  • 2%
    Two days or more
  • 2%
    Less than half day
  • 37%
    Less than a day
  • 39%
    One day
  • 20%
    More than one day
  • 2%
    Two days or more
Number of reviews
93 reviews
46 reviews

Software

Software
Operating System
  • Android 14
    Android 14 Upside-down cake, 2 years ago
  • Android 16
    Android 16 , 1 year ago
Google Services With Google Mobile Services With Google Mobile Services

User reviews

Did it come with preinstalled applications?
  • 4%
    It comes with a clean operating system
  • 84%
    It has preinstalled apps but they don't bother me
  • 11%
    It has preinstalled apps that I can't uninstall
  • 11%
    It comes with a clean operating system
  • 76%
    It has preinstalled apps but they don't bother me
  • 13%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 1%
    Never
  • 1%
    Once a year
  • 34%
    Every six months
  • 63%
    Every two months or less
  • 0%
    Never
  • 0%
    Once a year
  • 28%
    Every six months
  • 73%
    Every two months or less
Number of reviews
93 reviews
46 reviews
Prices
From $ 208 --
From $ 599 --

Others

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