Phone Comparison - Xiaomi Redmi Note 8 vs Samsung Galaxy A51 vs Xiaomi Redmi Note 9S

Price Comparison (India) -

general General Info

Manufacturer Xiaomi Samsung Xiaomi
Announced August 2019 December 2019 March 2020
Status Coming Soon - October 2019 Coming Soon - December 12, 2019 Coming Soon - April 2020
Price Rs. 9,999 ($0.00) [Similarly Priced] Rs. 23,999 ($0.00) [Similarly Priced] -
Colors Nebula Red, Neptune Blue, Space Black Prism Crush White, Black, Pink, Blue Aurora Blue, Glacier White, Interstellar Gray
Form Factor Candybar Candybar Candybar
Dimension 158.3 x 75.3 × 8.35 mm
(6.23 x 2.96 × 0.33 in)
158.4 x 73.7 x 7.9 mm
(6.24 x 2.9 x 0.31 in)
165.8 x 76.7 x 8.8 mm
(6.53 x 3.02 x 0.35 in)
Weight 190 g (6.7 oz) 172 g (6.07 oz) 209 g (7.37 oz)
SIM Type Hybrid Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500) LTE (unspecified) 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)
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor(In-display)
- Fingerprint Sensor (side-mounted)
Splash-proof

hardware Hardware and OS

OS Android 9.0 (Pie) Android 9.0 (Pie) Android 10.0
User Interface MIUI 10 One UI MIUI 11
Processor Octa-core 2.0 GHz Kryo 260, Qualcomm SDM665 Snapdragon 665 (11 nm) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm)
GPU Adreno 610 Mali-G72 MP3 Adreno 618
RAM 6 GB 8 GB 6 GB
Internal Memory 128 GB 128 GB 128 GB
External Memory microSD, up to 256 GB microSD, up to 512 GB (dedicated slot) microSDXC (dedicated slot)

display Display

Type Full HD+ curved glass LCD Touchscreen, Corning Gorilla Glass 5 protection Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen FHD+ IPS LCD Capacitive Touchscreen
Corning Gorilla Glass 5
450 nits typ. brightness (advertised)
Colors 16M colors 16M colors 16M colors
Size 6.39 inches 6.5 inches 6.67 inches
Resolution 1080 x 2340 pixels (403 ppi) 1080 x 2340 pixels (396 ppi) 1080 x 2400 pixels (395 ppi)
Screen-to-Body Ratio - 89.06% 84.28%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 48 MP + 8 MP + 2 MP + 2 MP 48 MP + 12 MP + 5 MP + 5 MP 48 MP + 8 MP + 5 MP + 2 MP
Flash Dual-LED Flash LED Flash LED flash
Features 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF
8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm
2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
2 MP, f/2.4, 1/5", 1.75µm, depth sensor
HDR, Panorana
48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF
12 MP, f/2.2, 13mm (ultrawide)
5 MP, f/2.2, depth sensor
5 MP, f/2.4, macro camera
Panorama, HDR
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
Video 2160p@30fps, 1080p@30/60/120fps, (gyro-EIS) 2160p@30fps, 1080p@30fps 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS
Front Camera 13 MP
HDR
1080p@30fps [Similar]
32 MP, f/2.0, 25mm (wide)
HDR
1080p@30fps [Similar]
16 MP Punch-Hole, f/2.5, 26mm (wide), 1/3.1", 1.0µm
HDR
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 (3CA) Cat9 450/50 Mbps HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth 5.0, A2DP, LE 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, USB On-The-Go 2.0, Type-C 1.0 reversible connector
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, 8 GB RAM or 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)
Expandable Storage microSD, up to 256 GB microSD, up to 512 GB (dedicated slot) microSDXC (dedicated slot)
USB OTG Yes 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 (Quick Charge 4)
Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 18W
Capacity 4000 mAh 4000 mAh 5020 mAh
Stand by - - -
Talk Time - - -