Realme C75 5G (6GB RAM + 128GB) vs Vivo V21

Here you can compare Realme C75 5G (6GB RAM + 128GB) and Vivo V21. Comparing Realme C75 5G (6GB RAM + 128GB) vs Vivo V21 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C75 5G (6GB RAM + 128GB) stands against Vivo V21 and which one should you buy The current lowest price found for Realme C75 5G (6GB RAM + 128GB) is ₹13,999 and for Vivo V21 is ₹24,999. The details of both of these products were last updated on Jun 17, 2026.

Specification	Realme C75 5G (6GB RAM + 128GB)	Vivo V21
RAM	6 GB	8 GB
Battery	6000 mAh	4000 mAh, Li-Po Battery
Display	6.67 inches, 720 x 1604 pixels, 120 Hz	6.44 inches, 1080 x 2400 pixels, 90 Hz
Rear Camera	32 MP ƒ/1.8 27mm, FOV：76°, Lens：5P	64 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro
OS	Android v15	Android v11
Price	₹13,999	₹24,999

Realme C75 5G (6GB RAM + 128GB)₹13,999

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Vivo V21₹24,999

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Realme C75 5G (6GB RAM + 128GB)₹13,999

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Vivo V21₹24,999

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Overview

Specs Score	53 / 100	61 / 100 Better Specs
Display Resolution	720 x 1604 pixels	1080 x 2400 pixels Better Resolution
Screen To Body Ratio		~ 84.8% Less Bezels
RAM	6 GB	8 GB More RAM
Rear Camera	32 MP	64 MP + 8 MP + 2 MP Triple Better Camera Resolution
Front Camera	8 MP	44 MP Better Front Camera Resolution
Weight	190 g	176 g Lighter
Thickness	7.94 mm	7.3 mm Slimmer
Battery	6000 mAh Bigger Battery	4000 mAh
Unique Features	5G 3.5mm Audio Jack	No No

General

Model	C75 5G	V21
Sim Type	Dual Sim, GSM+GSM (Hybrid Slot)	Dual Sim, GSM+GSM (Hybrid Slot)
Dual Sim	Yes	Yes
Sim Size	Nano+Nano SIM	Nano SIM
Device Type	Smartphone	Smartphone
Release Date		April 29, 2021
In The Box	1 realme C75 5G, 1 USB Type-C Cable, 1 45W Adapter, 1 Protect Case, 1 SIM Card Needle, 1 Screen Protect Film, 1 Quick Guide

Design

Dimensions	76.22 x 165.7 x 7.94 mm	73.9 x 159.7 x 7.3 mm
Weight	190 g	176 g
Bezel less	No
Colors	Lily White, Purple Blossom, Midnight Lily

Display

Type	Color IPS LCD Screen (16.7 M)	Color AMOLED Screen (16M Colors)
Touch	Yes, 180 Hz Touch Sampling Rate	Yes
Size	6.67 inches, 720 x 1604 pixels, 120 Hz	6.44 inches, 1080 x 2400 pixels, 90 Hz
Aspect Ratio		20:9
PPI	~ 264 PPI	~ 409 PPI
Screen to Body Ratio		~ 84.8%
Brightness	Peak Brightness: 625nit, Brightness Adjustment: 4096 Level
HDR Support		Yes, HDR10+
Features	Contrast Ratio: 1500: 1, Colour Gamut: 83% NTSC	HDR10+
Notch	Yes, Punch Hole	Yes, Water Drop Notch

Memory

RAM	6 GB	8 GB
Expandable RAM	Upto 12 GB Extra Virtual RAM
Storage	128 GB	128 GB
Storage Type		UFS 2.2
Card Slot	Yes, (Hybrid Slot)	Yes, (Hybrid Slot)

Connectivity

GPRS	Yes	Yes
EDGE	Yes	Yes
3G	Yes	Yes
4G	Yes	Yes
5G	Yes
5G Bands	NR: n1/3/5/8/28B/40/41/77/78
VoLTE	Yes, Dual Stand-By	Yes, Dual Stand-By
Wifi	Yes, with wifi-hotspot	Yes, with wifi-hotspot
Wifi Version	Support 2.4/5GHz Wi-Fi, Support 802.11 a/b/g/n/ac
Bluetooth	Yes, v5.3	Yes, v5.1, A2DP, LE
USB	Yes, USB-C v2.0	Yes, USB-C v2.0
USB Features	USB Tethering, USB on-the-go, USB Charging, USB Storage	USB on-the-go, USB Charging
IR Blaster	No

Extra

GPS	Beidou(B1I), GPS(L1), GLONASS(G1), Galileo(E1),QZSS(L1)	Yes, with A-GPS, GLONASS, GALILEO, BDS
Fingerprint Sensor	Yes, Side	Yes, In Display
Face Unlock	Yes	Yes
Sensors	Geomagnetic Sensor, Proximity Sensor, Light Sensor, Acceleration Sensor, Gyroscope	Accelerometer, Gyro, Proximity, Compass
3.5mm Headphone Jack	Yes	No
AI Features	AI Experience, Next AI, AI Clear Face, Google Gemini, AI Smart Loop
Splash Resistant	Yes
IP Rating	IP64
Dust Resistant	Yes
Extra Features	Dual-mic Noise Cancellation, Free Call

Camera

Rear Camera	32 MP ƒ/1.8 27mm, FOV：76°, Lens：5P	64 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro
Camera Sensor	GALAXYCORE GC32E2 AF
OIS		Yes
Auto Focus		Yes
Features	Photo Mode, Video Mode, Night Mode, Professional Mode, Portrait Mode, HighDefinition Mode, Street Mode, Panorama, Slow Motion, Time-lapse, SuperText Mode, Dual-view Video, Google Lens	HDR, Panorama, Eye Autofocus, Night, Ultra-Wide Night, Ultra Stable Video, Art Portrait Video, Super Macro, Bokeh Portrait, Multi-Style Portrait
Video Recording	1080p @ 30 fps FHD, 720p @ 30 fps HD	4K, 1080p
Flash	Yes, LED	Yes, LED
Front Camera	8 MP ƒ/2 Punch Hole	44 MP ƒ/2 (Wide Angle) Autofocus, Screen Flash
Front Video Recording	1080p	4K @ 30 fps UHD, 1080p @ 30 fps FHD

Technical

OS	Android v15	Android v11
Custom UI	realme UI 6.0
Chipset	mediatek Dimensity 6300	MediaTek Dimensity 800U
CPU	2.4 GHz, Octa Core Processor	2.4 GHz, Octa Core Processor
Core Details	2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz	2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55
Fabrication Node	6nm Advanced Process6nm
GPU	Arm Mali-G57 MC2	Mali-G57 MC3
Java	No	No
Browser	Yes	Yes

Multimedia

Email	Yes	Yes
Music	AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, WMA, MKA	WAV, MP3, MP2, MIDI, Vorbis, APE, FLAC
Video	MP4, 3GP, ASF, AVI, FLV, M2TS, MKV, MPG, TS, WEBM, WMV	MP4, 3GP, AVI, FLV, MKV
FM Radio	No	No
Speaker Type	Mono
Audio Features	Supports OReality Audio Effect, Hi-Res Audio Certification
Audio Jack Type	3.5mm
Document Reader		Yes

Battery

Type	Non-Removable Battery	Non-Removable Battery
Size	6000 mAh	4000 mAh, Li-Po Battery
Fast Charging	Yes, 45W SUPERVOOC Charging	Yes, 33W Fast Charging

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