Realme C21 (4GB RAM + 64GB) vs Realme C51 (4GB RAM + 128 GB)
Quick Comparison
Both Realme C21 (4GB RAM + 64GB) and Realme C51 (4GB RAM + 128 GB) comes with same RAM. Realme C51 (4GB RAM + 128 GB) has more internal memory than Realme C21 (4GB RAM + 64GB)
| Name | Realme C21 (4GB RAM + 64GB) | Realme C51 (4GB RAM + 128 GB) |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.5 in | 6.74 in |
| Internal Memory | 64 GB | 128 GB |
| Battery | 5000 mAh | 5000 mAh |
| Camera | 13 MP + 2 MP + 2 MP Triple | 50 MP + 0.08 MP Dual |
| Price | Rs. 9999 | Rs. 8799 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is April 8, 2021. The cost of Realme C21 (4GB RAM + 64GB) is Rs. 9999. The launch Date of the second phone is September 04, 2023. The cost of Realme C51 (4GB RAM + 128 GB) is Rs. 8799.
Display comparison
Realme C51 (4GB RAM + 128 GB) has larger screen size of 6.74 inches in comparison to Realme C21 (4GB RAM + 64GB)'s 6.5 inch screen. Realme C21 (4GB RAM + 64GB) has IPS LCD Screen type where as Realme C51 (4GB RAM + 128 GB) has IPS Screen type. Realme C21 (4GB RAM + 64GB) has display density of 269 PPI & Realme C51 (4GB RAM + 128 GB) has only 262 PPI display density. In terms of screen to body ratio, Realme C51 (4GB RAM + 128 GB) has better screen to body ratio of ~ 90.3% than Realme C21 (4GB RAM + 64GB)'s ~ 89.5%. Realme C21 (4GB RAM + 64GB) has 20:09 aspect ratio where as Realme C51 (4GB RAM + 128 GB) has 20.1:9 aspect ratio.
Memory comparison
Both mobiles come with 4 GB RAM Realme C51 (4GB RAM + 128 GB) has more Internal Memory (128 GB) than Realme C21 (4GB RAM + 64GB) (64 GB).
Camera comparison
Realme C51 (4GB RAM + 128 GB)'s 50 MP + 0.08 MP Dual Rear Camera outclasses Realme C21 (4GB RAM + 64GB)'s 13 MP + 2 MP + 2 MP Triple Rear Camera in terms of resolution. Both of them stand equal in terms of Front Camera Resolution as both have 5 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 10 and the second one on 13 version.
Related Comparisons
Full Comparison
| Name | Realme C21 (4GB RAM + 64GB) | Realme C51 (4GB RAM + 128 GB) |
| General | ||
| 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 | 4 GB | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 64 GB | 128 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 |
| 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 |