Phone Comparison - Samsung Galaxy A51 5G vs Samsung Galaxy S21 Ultra 5G vs Samsung Galaxy A12 Nacho

general General Info

Manufacturer Samsung Samsung Samsung
Announced April 2020 2021, January 14 August 2021
Status Coming Soon - April 2020 Coming soon. Exp. release 2021, January 29 Available - August 2021
Price - Rs. 105,999 ($0.00) [Similarly Priced] -
Colors Prism Cube Black, Prism Cube White, Prism Cube Pink Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown Black, Blue, Red
Form Factor Candybar Candybar Candybar
Dimension 158.9 x 73.6 x 8.7 mm
(6.26 x 2.9 x 0.34 in)
165.1 x 75.6 x 8.9 mm
(6.5 x 2.98 x 0.35 in)
164 x 75.8 x 8.9 mm
(6.46 x 2.98 x 0.35 in)
Weight 187 g (6.6 oz) 227 g (8.01 oz) 205 g (7.23 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) 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)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) 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 only)
3G Network HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100) LTE 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
5G Network 5G SA/NSA SA/NSA/Sub6/mmWave -
SAR EU - W/kg (head)
- W/kg (body)
- W/kg (head)
- W/kg (body)
0.67 W/kg (head)
1.38 W/kg (body)
Messaging
Build Features - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (under display, ultrasonic)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
Stylus support
Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+
- Fingerprint Sensor (side-mounted)

hardware Hardware and OS

OS Android 10.0 Android 11 Android 11
User Interface One UI 2.0 One UI 3.0 One UI 3.1
Processor Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55), Exynos 980 (8 nm) 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 - Global / Qualcomm Snapdragon 875 - USA Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55), Exynos 850 (8nm)
GPU Mali-G76 MP5 Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea Mali-G52
RAM 8 GB 16 GB 6 GB
Internal Memory 128 GB 512 GB 128 GB
External Memory microSDXC (dedicated slot) microSDXC (uses shared SIM slot) microSDXC (dedicated slot)

display Display

Type Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
QHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1500 nits (peak)
Corning Gorilla Glass Victus
Always-on display
HD+ PLS IPS LCD Screen
Colors 16M colors 16M Colour 16M Colour`
Size 6.5 inches 6.8 inches 6.5 inches
Resolution 1080 x 2400 pixels (405 ppi) 1440 x 3200 pixels (516 ppi) 720 x 1600 pixels (270 ppi)
Screen-to-Body Ratio 87.17% 89.46% 82.01%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 48 MP + 12 MP + 5 MP + 5 MP 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP 48 MP + 5 MP + 2 MP + 2 MP
Flash LED flash LED flash LED Flash
Features 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
12 MP, f/2.2, 12mm (ultrawide)
5 MP, f/2.4, 25mm (macro), 1/5.0", 1.12µm
5 MP, f/2.2, (depth)
HDR, panorama
108 MP (2nd gen), f/1.8, 26mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS
10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom
10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom
12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
auto-HDR, panorama
48 MP, f/2.0, 26mm (wide), AF
5 MP, f/2.2, 123˚ (ultrawide)
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
panorama, HDR
Video 2160p@30fps, 1080p@30/120fps; gyro-EIS 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS 1080p@30fps
Front Camera 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
HDR
1080p@30fps [Similar]
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF
Dual video call, Auto-HDR
4K@30/60fps, 1080p@30fps [Similar]
8 MP, f/2.0
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A, 5G HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth 5.0, A2DP, LE 5.2, A2DP, LE 5.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go USB Type-C 3.2, USB On-The-Go USB Type-C 2.0
GPS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, BDS, GALILEO Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 8 GB RAM or 128 GB, 6 GB RAM (UFS 2.0) 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1 128 GB, 6 GB RAM or 64 GB, 4 GB RAM or 32 GB, 3 GB RAM
Expandable Storage microSDXC (dedicated slot) microSDXC (uses shared SIM slot) microSDXC (dedicated slot)
USB OTG Supported Supported Not Supported

Apps Sensors

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

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 25W
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Reverse wireless charging 4.5W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 4500 mAh 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -