Realme C21 vs Realme C51
Here you can compare Realme C21 and Realme C51. Comparing Realme C21 vs Realme C51 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C21 stands against Realme C51 and which one should you buy The current lowest price found for Realme C21 is ₹9,999 and for Realme C51 is ₹15,999. The details of both of these products were last updated on Nov 07, 2026.
| Specification | Realme C21 | Realme C51 |
|---|---|---|
| Rear Camera | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Mono | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White |
| Battery | 5000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery |
| RAM | 3 GB | 4 GB |
| OS | Android v10, upgradable to v11 | Android v13 |
| Internal Memory | 32 GB | 64 GB |
| Price | ₹9,999 | ₹15,999 |
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Overview
| Specs Score | 35 / 100 | 43 / 100 Better Specs |
| RAM | 3 GB | 4 GB More RAM |
| Storage | 32 GB | 64 GB More Storage |
| CPU Clock Speed | 2.3 GHz Faster Clock Speed | 1.8 GHz |
| Rear Camera | 13 MP + 2 MP + 2 MP Triple | 50 MP + 0.08 MP Dual Better Camera Resolution |
| Thickness | 8.9 mm | 7.99 mm Slimmer |
| Unique Features | No | Fast Charging |
General
| Country of Origin | India | |
| Model | RMX3201, C21 | 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 | April 8, 2021 | September 04, 2023 |
Design
| Dimensions | 76.4 x 165.2 x 8.9 mm | 76.67 x 167.16 x 7.99 mm |
| Weight | 190 g | 186 g |
| Colors | Carbon Black, Mint Green |
Display
| Type | Color IPS LCD Screen (16.7M) | Color IPS Screen (16.7M) |
| Touch | Yes, 120 Hz Touch Sampling Rate | Yes, 180 Hz Touch Sampling Rate |
| Size | 6.5 inches, 1600 x 720 pixels, 60 Hz | 6.74 inches, 720 x 1600 pixels, 90 Hz |
| Aspect Ratio | 20:09 | 20.1:9 |
| PPI | ~ 269 PPI | ~ 262 PPI |
| Screen to Body Ratio | ~ 89.5% | ~ 90.3% |
| Features | 120 Hz Touch , Sunlight Screen Support, COG Sealing Process, WideVine L3 | 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 | 3 GB | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 32 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 | 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 on-the-go, USB Charging | USB on-the-go, USB Charging |
Extra
| GPS | Yes | with AGPS, BEIDOU, GALILEO |
| Fingerprint Sensor | Yes, Rear | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Acceleration Sensor | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro Meter (Soft Gyroscope), Acceleration Sensor |
| 3.5mm Headphone Jack | Yes | Yes |
| Water Resistance | No | |
| Extra Features | Night Shield, Step Tracker, Game Space, APP Market, Theme Store, Clone Phone, Phone Manager, Telephone Number Identification, TUV Rheinland Certified | 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 Mono | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White |
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes |
| Features | Supports 20 Continuous Shooting, Photograph Functions: Night Mode, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, Ultra Macro, AI Beauty, Filter, Chroma Boost, Video Recording Functions: Filter, Slow Motion, HDR | 50MP Mode, Video, Night Mode, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, AI Scene Recognition, Filter, Slow Motion |
| Video Recording | 720p, 720P | 1080p @ 30 fps FHD, 720p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP | 5 MP ƒ/2 (Wide Angle) Screen Flash |
| Front Video Recording | 720p | 720p @ 30 fps HD, 480p |
| Front Camera Features | Portrait Mode, Timelapse, Panoramic View, Beauty Mode, HDR, Face-Recognition, Filter | Video, Portrait Mode, Beauty Mode, HDR, Face Recognition, Filter, Bokeh Effect Control |
Technical
| OS | Android v10, upgradable to v11 | Android v13 |
| Custom UI | Realme UI T-edition | |
| Chipset | MediaTek Helio G35 | Unisoc T612 |
| CPU | 2.3 GHz, Octa Core Processor | 1.8 GHz, Octa Core Processor |
| Core Details | Arm Cortex-A53 | |
| GPU | IMG GE8320 | Mali-G57 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG VORBIS | AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, WMA, MKA |
| Video | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV | MP4, 3GP, ASF, AVI, FLV, M2TS, MKV, MPG, TS, WEBM, WMV |
| FM Radio | No | No |
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 | Yes |
Discuss
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