Nothing Phone 2a vs Samsung Galaxy M51 vs Oppo A7
Key Feature Comparison
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At a Glance
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Octa core (2.8 GHz, Dual core, Cortex A715 + 2 GHz, Hexa Core, Cortex A510)
Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core, 1.8 GHz, Cortex A53
5000 mAh
7000 mAh
4230 mAh
6.7 inches
6.7 inches
6.2 inches
Dual, 50MP + 50MP
Quad, 64MP + 12MP + 5MP + 5MP
Dual, 13MP + 2MP
5G
4G
4G
Detailed Specs
Screen Size
6.7 inches
6.7 inches
6.2 inches
Screen Type
AMOLED
Super AMOLED
IPS LCD
Screen Resolution
1080 x 2412 pixels
1080 x 2400 pixels
720 x 1520 pixels
Pixel Density
395 ppi
393 ppi
271 ppi
Aspect Ratio
20:09
20:09
-
Screen Protection
Gorilla Glass 5
Gorilla Glass 3
Gorilla Glass 3
Screen to Body Ratio
91.65%
91%
88.40%
Screen Design
Punch hole
Punch hole
Waterdrop notch
Screen Refresh Rate
120 Hz
-
-
Screen Quality
FHD
FHD
-
Peak Brightness
700 nits
420 nits
-
Phone Variants
8GB 128GB, 8GB 256 GB, 12GB 256 GB
8GB 128GB, 6GB 128GB
4GB 64GB, 3GB 64GB
Expandable Storage
No
Yes
Yes
RAM Type
LPDDR5
LPDDR4X
LPDDR3
Storage Type
UFS 3.1
UFS 2.1
eMMC 5.1
OTG Support
Yes
-
Yes
Expandable Storage Capacity
-
Yes, 512 GB
Yes, 256 GB
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass
Operating System
Android v14
Android v10 (Q)
Android v8.1 (Oreo)
GPU
Mali-G610 MC4
Adreno 618
Adreno 506
Chipset
MediaTek Dimensity 7200 Pro
Qualcomm Snapdragon 730G
Qualcomm Snapdragon 450
CPU
Octa core (2.8 GHz, Dual core, Cortex A715 + 2 GHz, Hexa Core, Cortex A510)
Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core, 1.8 GHz, Cortex A53
Clock Speed
2.8 GHz
2.2 GHz
1.8 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
4 nm
8 nm
14 nm
Custom User Interface
-
Samsung One UI
ColorOS
Battery Capacity
5000 mAh
7000 mAh
4230 mAh
Battery Removable
No
No
No
Battery Type
Li-Polymer
Li-ion
Li-ion
Charger Type
Fast, 45W
Fast, 25W
-
USB Type-C
Yes
Yes
No
Fast Charging
Yes
Yes
-
Charging Time
50 % in 23 minutes
-
-
Announced On
5-Mar-24
31-Aug-20
5-Nov-18
Market Status
Available
Available
Available
Brand
Nothing
Samsung
OPPO
Model Number
A142
SM-M515FZBEINS
-
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 23,999
Rs. 19,999
Rs. 15,900
Water Resistance
Yes, Splash proof, IP54
-
-
Weight
190 grams
213 grams
168 grams
Colors
Black, White, Blue
Celestial Black, Electric Blue
Glaze Blue, Glaring Gold
Dimensions
161.74 x 76.32 x 8.55 mm
163.9 x 76.3 x 9.5 mm
155.9 x 75.4 x 8.1 mm
Build
-
Back: Plastic
Back: Plastic
SAR Value
-
Head: 1.381 W/kg
Head: 1.370 W/kg, Body: 0.186 W/kg
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
NFC
Yes
Yes
No
Network Support
5G
4G
4G
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
No
Yes
Yes
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
Wi-Fi
Yes, Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 5GHz 6GHz, MIMO
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/b/g/n
Bluetooth Type
v5.3
v5.0
v4.2
Audio Jack
USB Type-C
3.5 mm
3.5 mm
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
eSIM
No
No
No
Wi-Fi Features
Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
Mobile Hotspot
VoLTE
Yes
Yes
Yes
SIM 1 Bands
5G Bands: FDD N1 / N3 / N5 / N7 / N8 / N20 / N28, TDD N38 / N40 / N41 / N66 / N77 / N78, 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) / 3500(band 42), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) /...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 19...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
SIM 2 Bands
5G Bands: FDD N1 / N3 / N5 / N7 / N8 / N20 / N28, TDD N38 / N40 / N41 / N66 / N77 / N78, 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) / 3500(band 42), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) /...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 19...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available...
Audio Features
-
Dolby Atmos
Active noise cancellation with dedicated mic
Front Video Recording
1920x1080 @ 60 fps
1920x1080 @ 30 fps
-
Front Camera Features
Fixed Focus
HDR
HDR
Front Camera Setup
Single, 32MP
Single, 32MP
Single, 16MP
Front Camera 1 Resolution
32 MP
32 MP
16 MP
Front Camera 1 Type
f/2.2, Wide Angle, Primary Camera
f/2.2, Wide Angle Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
2.74" sensor size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
-
Front Sensor
Exmor RS
Exmor RS
CMOS
Front Aperture
f/2.2
f/2.2
f/2.0
Front Flash
-
No
-
OIS
Yes
No
-
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps, 1920x1080 @ 60 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
1920x1080 @ 30 fps
Rear Camera Features
Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
2 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Dual, 50MP + 50MP
Quad, 64MP + 12MP + 5MP + 5MP
Dual, 13MP + 2MP
Rear Camera 1 Resolution
50 MP
64 MP
13 MP
Rear Camera 1 Type
f/1.88, Wide Angle, Primary Camera
f/1.8 (upto 8x Digital Zoom), Wide Angle Primary Camera
f/2.2 (upto 2x Digital Zoom) Primary Camera
Rear Camera 1 Lens
1.56" sensor size
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
1.12 micrometre pixel size
Rear Camera 2 Resolution
50 MP
12 MP
2 MP
Rear Camera 2 Type
f/2.2, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Depth Camera
Rear Camera 2 Lens
2.7" sensor size, 0.64 micrometre pixel size
-
-
Rear Sensor
ISO-CELL
Exmor-RS CMOS Sensor, ISOCELL Plus
CMOS image sensor
Rear Aperture
f/1.88
f/1.8
f/2.2
Rear Camera 3 Resolution
-
5 MP
-
Rear Camera 3 Type
-
f/2.4, Macro Camera
-
Rear Camera 4 Resolution
-
5 MP
-
Rear Camera 4 Type
-
f/2.4, Depth Camera
-
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
On-Screen
Side
Rear
Fingerprint Scanner Type
Optical
-
-
Face Unlock
-
Yes
Yes