Realme C21Y (4GB RAM + 64GB) vs Realme C51
Here you can compare Realme C21Y (4GB RAM + 64GB) and Realme C51. Comparing Realme C21Y (4GB RAM + 64GB) vs Realme C51 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C21Y (4GB RAM + 64GB) stands against Realme C51 and which one should you buy The current lowest price found for Realme C21Y (4GB RAM + 64GB) is ₹8,499 and for Realme C51 is ₹8,999. The details of both of these products were last updated on Dec 09, 2025.
| Specification | Realme C21Y (4GB RAM + 64GB) | Realme C51 |
|---|---|---|
| CPU | 1.8 GHz, Octa Core Processor | 1.8 GHz, Octa Core Processor |
| Internal Memory | 64 GB | 64 GB |
| OS | Android v11 | Android v13 |
| Display | 6.5 inches, 720 x 1600 pixels, 60 Hz | 6.74 inches, 720 x 1600 pixels, 90 Hz |
| Rear Camera | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Portrait | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White |
| Price | ₹8,499 | ₹8,999 |
- Like
- Comment
- Share
Overview
| Specs Score | 64 / 100 | 68 / 100 Better Specs |
| Rear Camera | 13 MP + 2 MP + 2 MP Triple | 50 MP + 0.08 MP Dual Better Camera Resolution |
| Weight | 200 g | 186 g Lighter |
| Thickness | 9.1 mm | 7.99 mm Slimmer |
| Unique Features | No No | Fast Charging Reverse Charging |
General
| Country of Origin | India | |
| Model | C21Y | C51 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August 23, 2021 | September 04, 2023 |
Design
| Dimensions | 76 x 164.5 x 9.1 mm | 76.67 x 167.16 x 7.99 mm |
| Weight | 200 g | 186 g |
| Colors | Carbon Black, Mint Green |
Display
| Type | Color IPS LCD Screen (16.7M) | Color IPS Screen (16.7M) |
| Touch | Yes | Yes, 180 Hz Touch Sampling Rate |
| Size | 6.5 inches, 720 x 1600 pixels, 60 Hz | 6.74 inches, 720 x 1600 pixels, 90 Hz |
| Aspect Ratio | 20:9 | 20.1:9 |
| PPI | ~ 269 PPI | ~ 262 PPI |
| Screen to Body Ratio | ~ 88.7% | ~ 90.3% |
| Features | Sunlight Screen Support, COG Sealing Process | Brightness: 560 nit, Color Saturation: 96% NTSC, Sunlight Screen Support, Screen Contrast: 1500:1, |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch |
Memory
| RAM | 4 GB | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 64 GB | 64 GB |
| Card Slot | Yes, upto 256 GB | Yes, upto 2 TB |
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 |
| USB | Yes, microUSB | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
Extra
| GPS | With A-GPS, Beidou, Glonass | with AGPS, BEIDOU, GALILEO |
| Fingerprint Sensor | Yes, Rear | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro-meter, Acceleration Sensor, Compass | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro Meter (Soft Gyroscope), Acceleration Sensor |
| 3.5mm Headphone Jack | Yes | Yes |
| Water Resistance | No | |
| 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 | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Portrait | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White |
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes |
| Features | Beauty, Filter, HDR, Panoramic View, Refocus, Timelapse, Slo-mo, NightScape, Expert | 50MP Mode, Video, Night Mode, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, AI Scene Recognition, Filter, Slow Motion |
| Video Recording | 1080p @ 30 fps FHD, 720P | 1080p @ 30 fps FHD, 720p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2.2 Screen Flash | 5 MP ƒ/2 (Wide Angle) Screen Flash |
| Front Video Recording | 720p | 720p @ 30 fps HD, 480p |
Technical
| OS | Android v11 | Android v13 |
| Custom UI | Realme UI T-edition | |
| Chipset | Unisoc T610 | Unisoc T612 |
| CPU | 1.8 GHz, Octa Core Processor | 1.8 GHz, Octa Core Processor |
| GPU | Mali-G52 | Mali-G57 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | MPEG, AMRNB, AMRWB, AAC, G711.ALAW, G711.MLAW, VORBIS, OPUS, FLAC | AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, WMA, MKA |
| Video | H.264, MPEG-4, H.263, Sorenson Spark, VP8, VP9, H.265 | MP4, 3GP, ASF, AVI, FLV, M2TS, MKV, MPG, TS, WEBM, WMV |
| FM Radio | No | No |
| Document Reader | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W | |
| Reverse Charging | Yes |
Discuss
Related News
Sandisk Creator Phone SSD Review: The Perfect Choice for Mobile CreatorsThe SANDISK Creator Phone SSD is positioned as a compact, creator-friendly external drive designed for mobile workflows. I’ve been testing the 1 TB variant with my base iPhone 17, and the idea is simple. Atta…
The Realme 16 Pro Just Leaked, And It’s Battery Specs Are RidiculousRealme isn’t waiting around. Despite the Realme 15 series launching just months ago, the company is already clearing the runway for the Realme 16 Pro. A new listing on China’s TENAA certification site (under …
Realme’s Game of Thrones Phone is Here, and Its Fiery Design Changes Color“Fire and Blood” is no longer just a motto it’s a feature. Realme has just launched the Realme 15 Pro 5G Game of Thrones Limited Edition in India, and it’s a dream for any fan of Westeros. The phone’s standou…
ZomHom Site 4G to 5G Convert SIM: An Easy Upgrade or a Clever Scam?Tired of waiting for your telecom provider to roll out 5G SIMs? You may have stumbled upon videos or articles promoting ZomHom Site, which claims to offer a magical fix: a “4G to 5G Convert SIM.” The promise …
