Phone Comparison - Xiaomi Mi A1 vs Samsung Galaxy A51 vs Samsung Galaxy A31

Price Comparison (India) -

general General Info

Manufacturer Xiaomi Samsung Samsung
Announced September 2017 December 2019 2020, March 24
Status Coming Soon - September 2017 Coming Soon - December 12, 2019 Coming Soon - April 2020
Price Rs. 14,999 ($245.00) [Similarly Priced] Rs. 23,999 ($0.00) [Similarly Priced] -
Colors Gold, Pink, Black Prism Crush White, Black, Pink, Blue Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Form Factor Candybar Candybar Candybar
Dimension 155.4 x 75.8 x 7.3 mm
(6.12 x 2.98 x 0.29 in)
158.4 x 73.7 x 7.9 mm
(6.24 x 2.9 x 0.31 in)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
Weight 165 g (5.82 oz) 172 g (6.07 oz) 185 g (6.53 oz)
SIM Type Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) Single SIM (Nano-SIM), 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 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)
3G Network HSDPA 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE LTE (unspecified) LTE (unspecified)
Messaging SMS, MMS, Push Mail, EMail
Build Features - Fingerprint Sensor - Fingerprint Sensor(In-display)
- Fingerprint Sensor (under display, optical)
Notification LED Yes - -

hardware Hardware and OS

OS Android OS, v7.1.1 Nougat Android 9.0 (Pie) Android 10.0
User Interface Android One (Stock Android) One UI One UI 2.0
Processor Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)
GPU Adreno 506 Mali-G72 MP3 Mali-G52 MC2
RAM 4 GB 8 GB 6 GB
Internal Memory 64 GB 128 GB 128 GB
External Memory microSD, up to 128 GB microSD, up to 512 GB (dedicated slot) microSDXC

display Display

Type IPS LCD Capacitive Touchscreen Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen Super AMOLED Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 6.5 inches 6.4 inches
Resolution 1080 x 1920 pixels (401 ppi) 1080 x 2340 pixels (396 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio 70.63% 89.06% 85.01%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio N/A FM radio -
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera Dual 12 MP 48 MP + 12 MP + 5 MP + 5 MP 48 MP + 8 MP + 5 MP + 5 MP
Flash Dual-LED (Dual Tone) LED Flash LED flash
Features Phase Detection Autofocus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR, Wide-angle lens - 12MP, 1.25μm, f/2.2 aperture; Telephoto lens - 12MP, 1.0μm, f/2.6 aperture 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/2.0, (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)
5 MP, f/2.4, (depth)
panorama, HDR
Video 2160p@30fps, 1080p@30fps, 720p@120fps 2160p@30fps, 1080p@30fps 1080p@30fps
Front Camera 16 MP [Similar] 32 MP, f/2.0, 25mm (wide)
HDR
1080p@30fps [Similar]
20 MP, f/2.2, 0.8µm
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 Cat4 150/50 Mbps, VoLTE HSPA, LTE-A HSPA, LTE-A
Bluetooth v4.2, A2DP, LE 5.0, A2DP, LE 5.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi 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 Type-C 1.0 reversible connector, USB On-The-Go 2.0, Type-C 1.0 reversible connector, USB On-The-Go 2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser HTML5 Yes Yes

memory User Memory

Internal 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 128 GB microSD, up to 512 GB (dedicated slot) microSDXC
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-Ion Battery Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 3080 mAh 4000 mAh 5000 mAh
Stand by - - -
Talk Time - - -