Phone Comparison - Samsung Galaxy A42 5G vs Samsung Galaxy M12 vs Samsung Galaxy S21 Ultra 5G

general General Info

Manufacturer Samsung Samsung Samsung
Announced 2020, September 02 2021, February 05 2021, January 14
Status Available. Released 2020, November 11 Coming soon. Exp. release 2021, February Coming soon. Exp. release 2021, January 29
Price - - Rs. 105,999 ($0.00) [Similarly Priced]
Colors Prism Dot Black, Prism Dot White, Prism Dot Gray Gray, Blue, Green Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown
Form Factor Candybar Candybar Candybar
Dimension 164.4 x 75.9 x 8.6 mm
(6.47 x 2.99 x 0.34 in)
163.9 x 75.9 x 8.9 mm
(6.45 x 2.99 x 0.35 in)
165.1 x 75.6 x 8.9 mm
(6.5 x 2.98 x 0.35 in)
Weight 193 g (6.81 oz) 221 g (7.8 oz) 227 g (8.01 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM and/or eSIM), Hybrid 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 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41 - Europe
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 34, 38, 39, 40, 41
LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 LTE
5G Network 1, 3, 5, 7, 8, 28, 40, 41, 78 SA/NSA/Sub6 - Europe
1, 3, 5, 7, 8, 28, 40, 41, 78, 79 SA/NSA/Sub6
- SA/NSA/Sub6/mmWave
Messaging
Build Features - Fingerprint Sensor (under display, optical)
- Fingerprint Sensor (side-mounted)
- 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+

hardware Hardware and OS

OS Android 10, upgradable to Android 11, One UI 3.1 Android 10 Android 11
User Interface One UI 2.1 One UI 2.5 One UI 3.0
Processor Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570), Qualcomm SM7225 Snapdragon 750 5G (8 nm) Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55), Exynos 850 (8nm) 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
GPU Adreno 619 Mali-G52 Mali-G78 MP14 - International / Adreno 660 - USA/China/Korea
RAM 8 GB 6 GB 16 GB
Internal Memory 128 GB 128 GB 512 GB
External Memory microSDXC microSDXC (dedicated slot) microSDXC (uses shared SIM slot)

display Display

Type HD+ Super AMOLED capacitive touchscreen PLS IPS Display QHD+ Dynamic AMOLED 2X Display
120Hz Refresh Rate
HDR10+
1500 nits (peak)
Corning Gorilla Glass Victus
Always-on display
Colors 16M Colour 16M Colour 16M Colour
Size 6.6 inches 6.5 inches 6.8 inches
Resolution 720 x 1600 pixels (266 ppi) 720 x 1600 pixels (270 ppi) 1440 x 3200 pixels (516 ppi)
Screen-to-Body Ratio 84.18% 81.95% 89.46%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 48 MP + 8 MP + 5 MP + 5 MP 48 MP + 5 MP + 2 MP + 2 MP 108 MP + 10 MP + 10 MP + 12 MP + 0.3 MP
Flash LED Flash LED flash LED flash
Features 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (depth)
5 MP, f/2.4, (macro)
Panorama, HDR
48 MP, f/2.0, (wide), PDAF
5 MP, f/2.2, 123˚ (ultrawide), 1/5.0", 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
panorama, HDR
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
Video 4K@30fps, 1080p@30fps, 720p@480fps 1080p@30fps 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Front Camera 20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]
8 MP, f/2.2, (Wide)
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]

connectivity Connectivity and Data Rate

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

memory User Memory

Internal 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM UFS 2.1 128 GB, 6 GB RAM or 64 GB, 4 GB RAM or 32 GB, 3 GB RAM (eMMC 5.1) 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 GB RAM UFS 3.1
Expandable Storage microSDXC microSDXC (dedicated slot) microSDXC (uses shared SIM slot)
USB OTG Supported Not Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor 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 not present barometer sensor not present barometer sensor present
NFC NFC supported NFC not supported NFC supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
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
Capacity 5000 mAh 6000 mAh 5000 mAh
Stand by - - -
Talk Time - - -