Realme C51 (4GB RAM + 128 GB) vs Xiaomi Redmi Note 9

Here you can compare Realme C51 (4GB RAM + 128 GB) and Xiaomi Redmi Note 9. Comparing Realme C51 (4GB RAM + 128 GB) vs Xiaomi Redmi Note 9 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C51 (4GB RAM + 128 GB) stands against Xiaomi Redmi Note 9 and which one should you buy The current lowest price found for Realme C51 (4GB RAM + 128 GB) is ₹8,999 and for Xiaomi Redmi Note 9 is ₹9,996. The details of both of these products were last updated on Jul 23, 2026.

Specification	Realme C51 (4GB RAM + 128 GB)	Xiaomi Redmi Note 9
Battery	5000 mAh, Li-Po Battery	5020 mAh, Li-ion Battery
CPU	1.8 GHz, Octa Core Processor	2 GHz, Octa Core Processor
Internal Memory	128 GB	64 GB
OS	Android v13	Android v10.0
Display	6.74 inches, 720 x 1600 pixels, 90 Hz	6.53 inches, 1080 x 2340 pixels
Price	₹8,999	₹9,996

Realme C51 (4GB RAM + 128 GB)₹8,999

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Xiaomi Redmi Note 9₹9,996

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Realme C51 (4GB RAM + 128 GB)₹8,999

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Xiaomi Redmi Note 9₹9,996

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Overview

Specs Score	48 / 100	48 / 100
Display Resolution	720 x 1600 pixels	1080 x 2340 pixels Better Resolution
Screen To Body Ratio	~ 90.3% Less Bezels	~ 83.5%
Storage	128 GB More Storage	64 GB
CPU Clock Speed	1.8 GHz	2 GHz Faster Clock Speed
Front Camera	5 MP	13 MP Better Front Camera Resolution
Weight	186 g Lighter	199 g
Thickness	7.99 mm Slimmer	8.9 mm
Unique Features	No No	FM Radio IR Blaster

General

Model	C51	Redmi Note 9
Sim Type	Dual Sim, GSM+GSM	Dual Sim, GSM+GSM
Dual Sim	Yes	Yes
Sim Size	Nano SIM	Nano+Nano SIM
Device Type	Smartphone	Smartphone
Release Date	September 04, 2023	July 20, 2020

Design

Dimensions	76.67 x 167.16 x 7.99 mm	77.2 x 162.3 x 8.9 mm
Weight	186 g	199 g
Colors	Carbon Black, Mint Green

Display

Type	Color IPS Screen (16.7M)	Color IPS LCD Screen (16M Colors)
Touch	Yes, 180 Hz Touch Sampling Rate	Yes
Size	6.74 inches, 720 x 1600 pixels, 90 Hz	6.53 inches, 1080 x 2340 pixels
Aspect Ratio	20.1:9	19.5:9
PPI	~ 262 PPI	~ 403 PPI
Screen to Body Ratio	~ 90.3%	~ 83.5%
Glass Type		Corning Gorilla Glass 5
Features	Brightness: 560 nit, Color Saturation: 96% NTSC, Sunlight Screen Support, Screen Contrast: 1500:1,	Reading Mode 2.0, Plastic Frame
Notch	Yes, Water Drop Notch	Yes, Punch Hole

Memory

RAM	4 GB	4 GB
Expandable RAM	Upto 4 GB Extra Virtual RAM
Storage	128 GB	64 GB
Card Slot	Yes, upto 2 TB	Yes, upto 512 GB

Connectivity

GPRS	Yes	Yes
EDGE	Yes	Yes
3G	Yes	Yes
4G	Yes	Yes
VoLTE	Yes, Dual Stand-By	Yes, Dual Stand-By
Wifi	Yes, with wifi-hotspot	Yes, with wifi-hotspot
Wifi Version	IEEE 802.11 a/b/g/n/ac (WiFi 4, WiFi 5) (2.4 GHz \| 5 GHz)
Bluetooth	Yes, v5.0	Yes, v5.0, A2DP, LE
USB	Yes, USB-C v2.0	Yes, USB-C
USB Features	USB on-the-go, USB Charging	USB Tethering, USB on-the-go, USB Charging
IR Blaster		Yes

Extra

GPS	with AGPS, BEIDOU, GALILEO	yes with A-GPS, GLONASS, GALILEO, BDS
Fingerprint Sensor	Yes, Side	Yes, Rear
Face Unlock	Yes	Yes
Sensors	Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro Meter (Soft Gyroscope), Acceleration Sensor	Light sensor, Proximity sensor, Accelerometer, Compass
3.5mm Headphone Jack	Yes	Yes
Water Resistance	No
Splash Resistant		Yes
Extra Features	Mini Capsule, Press to Answer Calls, Wake Up Voice Assistant, Switch The Music, Night Shield Google Lens, Data Backup, Office Tools, World Time

Camera

Rear Camera	50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White	48 MP ƒ/1.79 (Main) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 (Depth Sensor)
Auto Focus	Yes	Yes
Features	50MP Mode, Video, Night Mode, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, AI Scene Recognition, Filter, Slow Motion	Night Mode, Document Mode, Cinematic portraits, HDR, Panorama, Pro mode, Portrait
Video Recording	1080p @ 30 fps FHD, 720p	1080p @ 30 fps FHD, 720p @ 120/30 fps HD
Flash	Yes, LED	Yes, LED
Front Camera	5 MP ƒ/2 (Wide Angle) Screen Flash	13 MP ƒ/2.3 (Main)
Front Video Recording	720p @ 30 fps HD, 480p	1080p @ 30 fps FHD

Technical

OS	Android v13	Android v10.0
Custom UI	Realme UI T-edition
Chipset	Unisoc T612	MediaTek Helio G85
CPU	1.8 GHz, Octa Core Processor	2 GHz, Octa Core Processor
Core Details		2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55
GPU	Mali-G57	Mali-G52 MC2
Java	No	No
Browser	Yes	Yes, supports HTML5

Multimedia

Email	Yes	Yes
Music	AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, WMA, MKA	MP3, AMR, FLAC, APE
Video	MP4, 3GP, ASF, AVI, FLV, M2TS, MKV, MPG, TS, WEBM, WMV	MP4, M4V, MKV, XVID
FM Radio	No	Yes
Document Reader		Yes

Battery

Type	Non-Removable Battery	Non-Removable Battery
Size	5000 mAh, Li-Po Battery	5020 mAh, Li-ion Battery
Fast Charging	Yes, 33W	Yes, 22.5W Fast Charging
Reverse Charging	Yes	Yes, 9W Reverse Charging
Talk Time		34 hours
Music Playback Time		171 hours

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