Phone Comparison - Samsung Galaxy S21 5G vs Samsung Galaxy A15 vs Samsung Galaxy A25

general General Info

Manufacturer Samsung Samsung Samsung
Announced 2021, January 14 December 2023 December 2023
Status Coming soon. Exp. release 2021, January 29 Coming Soon - December 2023 Coming Soon - December 2023
Price Rs. 69,999 ($799.99) [Similarly Priced] - -
Colors Phantom Gray, Phantom White, Phantom Violet, Phantom Pink Black, Personality Yellow, Fantasy Blue, Optimistic Blue Brave Black, Personality Yellow, Fantasy Blue, Optimistic Blue
Form Factor Candybar Candybar Candybar
Dimension 151.7 x 71.2 x 7.9 mm
(5.97 x 2.8 x 0.31 in)
160.1 x 76.8 x 8.4 mm
(6.3 x 3.02 x 0.33 in)
161 x 76.5 x 8.3 mm
(6.34 x 3.01 x 0.33 in)
Weight 169 g (5.96 oz) 200 g (7.05 oz) 197 g (6.95 oz)
SIM Type Single SIM (Nano-SIM and/or eSIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Hybrid Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual sim model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
5G Network SA/NSA/Sub6/mmWave - 1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78 SA/NSA/Sub6
SAR EU - W/kg (head)
- W/kg (body)
- W/kg (head)
- W/kg (body)
0.46 W/kg (head)
1.19 W/kg (body)
Messaging
Build Features - Fingerprint Sensor (under display, ultrasonic)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+
- Fingerprint Sensor
- Fingerprint Sensor

hardware Hardware and OS

OS Android 11 Android 14 Android 14
User Interface One UI 3.1 One UI 6 One UI 6
Processor Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International / Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China/Korea, Exynos 2100 - International / Qualcomm Snapdragon 888 - USA/China/Korea Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), Mediatek Helio G99 (6nm) Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55), Exynos 1280 (5 nm)
GPU Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Mali-G57 MC2 Mali-G68
RAM 8 GB 8 GB 8 GB
Internal Memory 256 GB 256 GB 128 GB
External Memory microSDXC (uses shared SIM slot) microSDXC microSDXC (uses shared SIM slot)

display Display

Type FHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1300 nits (peak)
Corning Gorilla Glass Victus
Always-on display
FHD+ Super AMOLED Screen
90Hz Refresh Rate
800 Nits (HBM)
FHD+ Super AMOLED Screen
120Hz Refresh Rate
1000 Nits (HBM)
Colors 16M Colour 16M colors 16M colors
Size 6.2 inches 6.5 inches 6.5 inches
Resolution 1080 x 2400 pixels (424 ppi) 1080 x 2340 pixels (396 ppi) 1080 x 2340 pixels (396 ppi)
Screen-to-Body Ratio 86.12% 84.56% 84.42%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack no yes yes
Radio FM radio (Snapdragon model only; market/operator dependent) Unspecified Unspecified
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes

camera Camera

Rear Camera 12 MP + 64 MP + 12 MP 50 MP + 5 MP + 2 MP 50 MP + 8 MP + 2 MP
Flash LED Flash LED Flash LED Flash
Features 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, Dual Pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm (ultrawide), 1.4µm, Super Steady video
Auto-HDR, Panorama
50 MP, f/1.8, (wide), AF
5 MP, f/2.2, (ultrawide)
2 MP, f/2.4, (macro)
Panorama, HDR
50 MP, f/1.8, (wide), PDAF, OIS
8 MP, f/2.2, 120˚ (ultrawide)
2 MP, f/2.4, (macro)
Panorama, HDR
Video 8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS 1080p@30fps 4K@30fps, 1080p@30fps, gyro-EIS
Front Camera 10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, Dual Pixel PDAF, Dual video call, Auto-HDR, 4K@30/60fps, 1080p@30fps [Similar] 13 MP, f/2.0, (wide)
1080p@30fps [Similar]
13 MP, f/2.2, (wide)
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA, LTE HSPA, LTE, 5G
Bluetooth 5.0, A2DP, LE Yes 5.3, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot Yes Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
USB USB Type-C 3.2, USB On-The-Go USB Type-C 2.0 USB Type-C 2.0
GPS Yes, with A-GPS, GLONASS, BDS, GALILEO GPS, GALILEO, GLONASS, BDS, QZSS GPS, GLONASS, GALILEO, BDS, QZSS
Browser Yes Yes Yes

memory User Memory

Internal 256 GB, 8 GB RAM or 128 GB, 8 GB RAM UFS 3.1 256 GB, 8 GB RAM or 128 GB, 8 GB RAM 128 GB, 8 GB RAM or 128 GB, 6 GB RAM
Expandable Storage microSDXC (uses shared SIM slot) microSDXC microSDXC (uses shared SIM slot)
USB OTG Supported Not Supported Not Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor not present proximity sensor not present
Accelerometer Sensor accelerometer sensor present accelerometer sensor not present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor not present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor not present gyroscope sensor present
Barometer Sensor barometer sensor present barometer sensor not present barometer sensor not present
NFC NFC supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Power bank/Reverse wireless charging 4.5W
Non-removable Li-Po Battery
Fast battery Charging 25W
Non-removable Li-Po Battery
Fast battery Charging 25W
Capacity 4000 mAh 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -