Phone Comparison - Xiaomi Mi A3 vs Xiaomi Redmi Note 9S vs Samsung Galaxy A51 5G

Price Comparison (India) - -

general General Info

Manufacturer Xiaomi Xiaomi Samsung
Announced July 2019 March 2020 April 2020
Status Coming Soon - July 2019 Coming Soon - April 2020 Coming Soon - April 2020
Price Rs. 12,999 ($0.00) [Similarly Priced] - -
Colors Black, Blue, White Aurora Blue, Glacier White, Interstellar Gray Prism Cube Black, Prism Cube White, Prism Cube Pink
Form Factor Candybar Candybar Candybar
Dimension 153.5 x 71.9 x 8.5 mm
(6.04 x 2.83 x 0.33 in)
165.8 x 76.7 x 8.8 mm
(6.53 x 3.02 x 0.35 in)
158.9 x 73.6 x 8.7 mm
(6.26 x 2.9 x 0.34 in)
Weight 173.8 g (6.1.0.28 oz) 209 g (7.37 oz) 187 g (6.6 oz)
SIM Type Dual SIM (Nano-SIM, dual stand-by) 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
CDMA 800 & TD-SCDMA
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300) 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)
5G Network - - 5G SA/NSA
Messaging
Build Features - Fingerprint Sensor (In-display)
- Fingerprint Sensor (side-mounted)
Splash-proof
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

OS Android 9.0 (Pie) Android 10.0 Android 10.0
User Interface Android One MIUI 11 One UI 2.0
Processor Octa-core 2.0 GHz Kryo 260, Qualcomm SDM665 Snapdragon 665 (11 nm) Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) Octa-core (2x2.2 GHz Cortex-A77 & 6x1.8 GHz Cortex A55), Exynos 980 (8 nm)
GPU Adreno 610 Adreno 618 Mali-G76 MP5
RAM 6 GB 6 GB 8 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSD, up to 256 GB (uses shared SIM slot) microSDXC (dedicated slot) microSDXC (dedicated slot)

display Display

Type Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 5
FHD+ IPS LCD Capacitive Touchscreen
Corning Gorilla Glass 5
450 nits typ. brightness (advertised)
Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
Colors 16M colors 16M colors 16M colors
Size 6.08 inches 6.67 inches 6.5 inches
Resolution 720 x 1560 pixels (283 ppi) 1080 x 2400 pixels (395 ppi) 1080 x 2400 pixels (405 ppi)
Screen-to-Body Ratio 81.98% 84.28% 87.17%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio FM radio, recording FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 48 MP + 8 MP + 2 MP 48 MP + 8 MP + 5 MP + 2 MP 48 MP + 12 MP + 5 MP + 5 MP
Flash LED Flash LED flash LED flash
Features 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF
8 MP, (ultrawide), f/2.2, 1.12µm
2 MP, f/2.4, depth sensor
HDR, Panorama
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.4, (macro), 1.12µm
2 MP, f/2.4, (depth)
HDR, Panorama
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
Video 2160p@30fps, 1080p@30/60/120fps 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS 2160p@30fps, 1080p@30/120fps; gyro-EIS
Front Camera 32 MP, f/2.0, 0.8µm, HDR, 1080p@30fps [Similar] 16 MP Punch-Hole, f/2.5, 26mm (wide), 1/3.1", 1.0µm
HDR
1080p@30fps [Similar]
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
HDR
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE-A (2CA) 450/50 Mbps HSPA 42.2/5.76 Mbps, LTE-A HSPA, LTE-A, 5G
Bluetooth 5.0, A2DP, LE, aptX HD 5.0, 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, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB 2.0, Type-C 1.0 reversible connector 2.0, Type-C 1.0 reversible connector 2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 6 GB RAM or 64 GB, 4 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) 128 GB, 8 GB RAM or 128 GB, 6 GB RAM (UFS 2.0)
Expandable Storage microSD, up to 256 GB (uses shared SIM slot) microSDXC (dedicated slot) microSDXC (dedicated slot)
USB OTG Supported 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 present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 18W
Non-removable Li-Po Battery
Fast battery charging 18W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 4030 mAh 5020 mAh 4500 mAh
Stand by - - -
Talk Time - - -