Phone Comparison - Xiaomi Redmi Note 4 vs Oppo A3s vs Samsung Galaxy A02

Price Comparison (India) -

general General Info

Manufacturer Xiaomi Oppo Samsung
Announced January 2017 July 2018 2021, January 27
Status Available - January 2017 Available - July 2018 Available. Released 2021, January 27
Price Rs. 10,999 ($145.00) [Similarly Priced] Rs. 8,990 ($0.00) [Similarly Priced] -
Colors Gold, Silver, Gray Red, Dark Purple Black, Blue, Red
Form Factor Candybar Candybar Candybar
Dimension 151 x 76 x 8.45 mm
(5.94 x 2.99 x 0.33 in)
156.2 x 75.6 x 8.2 mm
(6.15 x 2.98 x 0.32 in)
164 x 75.9 x 9.1 mm
(6.46 x 2.99 x 0.36 in)
Weight 165 g (5.82 oz) 168 g (5.93 oz) 206 g (7.27 oz)
SIM Type Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) 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 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 2100 HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE LTE LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900) 20(800), 28(700), 32(1500), 38(2600), 40(2300), 41(2500)
Messaging SMS, MMS, Push Mail, EMail
Build Features - Fingerprint Sensor
- Infrared Sensor
- -
Notification LED Yes - -

hardware Hardware and OS

OS Android OS, v6.0.1 (Marshmallow) Android 8.1 (Oreo) Android 10
User Interface MIUI 8 ColorOS 5.1 One UI 2.5
Processor Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 Octa-core 1.8 GHz Cortex-A53, Qualcomm SDM450 Snapdragon 450 (14 nm) Octa-core 1.8 GHz Cortex-A53, Qualcomm SM4250 Snapdragon 450 (11 nm)
GPU Adreno 506 Adreno 506 Adreno 506
RAM 2/3/4 GB 2 GB 2 GB
Internal Memory 32/64 GB 16 GB 32 GB
External Memory microSD, up to 128 GB microSD, up to 256 GB (dedicated slot) microSDXC (dedicated slot)

display Display

Type IPS LCD Capacitive Touchscreen IPS LCD Capacitive Touchscreen PLS TFT Display
Colors 16M colors 16M colors 16M Colour
Size 5.5 inches 6.2 inches 6.5 inches
Resolution 1080 x 1920 pixels (401 ppi) 720 x 1520 pixels (271 ppi) 720 x 1520 pixels (259 ppi)
Screen-to-Body Ratio 72.50% 81.41% 84.56%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 13 MP 13 MP + 2 MP 13 MP + 2 MP
Flash Dual-LED (Dual Tone) LED Flash LED Flash
Features Phase Detection Autofocus, f/2.0 aperture, Sony IMX258/Samsung S5K3L8 sensor, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR 13 MP, f/2.2, AF
2 MP, f/2.4, depth sensor
HDR, Panorama
13 MP, f/2.2, 28mm (wide), 1/3.1", 1.12µm, AF
2 MP, f/2.4, (depth)
Video 2160p@30fps, 1080p@30fps, 720p@120fps 1080p@30fps 1080p@30fps
Front Camera 5 MP, 1080p, f/2.0 [Similar] 8 MP, f/2.2, , [Similar] 8 MP, f/2.2, 1/4", 1.12µm [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 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth v4.2, A2DP, LE 4.2, A2DP, LE 4.2, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB microUSB v2.0, USB On-The-Go microUSB 2.0, USB On-The-Go microUSB 2.0
GPS Yes, with A-GPS Yes, with A-GPS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser HTML5 Yes Yes

memory User Memory

Internal 32/64 GB, 2/3/4 GB RAM 16 GB, 2 GB RAM 32 GB, 2 GB RAM
Expandable Storage microSD, up to 128 GB microSD, up to 256 GB (dedicated slot) microSDXC (dedicated slot)
USB OTG Yes Supported Not Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint not supported fingerprint not 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 not present
Gyroscope Sensor gyroscope sensor present gyroscope sensor not present gyroscope sensor not present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Ion Battery Non-removable Li-Ion Battery Non-removable Li-Po Battery
Battery Charging 10W
Capacity 4100 mAh 4230 mAh 5000 mAh
Stand by - - -
Talk Time - - -