Realme C21Y (4GB RAM + 64GB) vs Realme P4 5G
Quick Comparison
Realme P4 5G has better RAM than Realme C21Y (4GB RAM + 64GB). In terms of display resolution, Realme P4 5G has better resolution of 2392 x 1080 than Realme C21Y (4GB RAM + 64GB) which has resolution of 1600 x 720. Realme P4 5G has more internal memory than Realme C21Y (4GB RAM + 64GB)
| Name | Realme C21Y (4GB RAM + 64GB) | Realme P4 5G |
| RAM | 4 GB | 6 GB |
|---|---|---|
| Display | 6.5 in | 6.77 in |
| Internal Memory | 64 GB | 128 GB |
| Battery | 5000 mAh | 7000 mAh |
| Camera | 13 MP + 2 MP + 2 MP Triple | 50 MP + 8 MP Dual |
| Price | Rs. 8499 | Rs. 25999 |
Related Products
Detailed Comparison
Price And Launch
The launch Date of the first phone is August 23, 2021. The cost of Realme C21Y (4GB RAM + 64GB) is Rs. 8499. The launch Date of the second phone is August 20, 2025. The cost of Realme P4 5G is Rs. 25999.
Display comparison
Realme P4 5G has larger screen size of 6.77 inches in comparison to Realme C21Y (4GB RAM + 64GB)'s 6.5 inch screen. Realme C21Y (4GB RAM + 64GB) has IPS LCD Screen type where as Realme P4 5G has AMOLED Screen type. Realme P4 5G has display density of 390 PPI & Realme C21Y (4GB RAM + 64GB) has only 269 PPI display density. In terms of screen to body ratio, Realme P4 5G has better screen to body ratio of ~ 94% than Realme C21Y (4GB RAM + 64GB)'s ~ 88.7%. Realme C21Y (4GB RAM + 64GB) has 20:9 aspect ratio where as Realme P4 5G has 20:9 aspect ratio.
Memory comparison
Realme P4 5G's larger 6 GB RAM is better for playing games and all with respect to Realme C21Y (4GB RAM + 64GB)'s lower 4 GB RAM. Realme P4 5G has more Internal Memory (128 GB) than Realme C21Y (4GB RAM + 64GB) (64 GB).
Camera comparison
Realme P4 5G's 50 MP + 8 MP Dual Rear Camera outshines Realme C21Y (4GB RAM + 64GB)'s 13 MP + 2 MP + 2 MP Triple Rear Camera in terms of resolution. Realme P4 5G will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to Realme C21Y (4GB RAM + 64GB)'s 5 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 11 and the second one on 15 version.
Related Comparisons
Full Comparison
| Name | Realme C21Y (4GB RAM + 64GB) | Realme P4 5G |
| General | ||
| Country of Origin | India | |
| Model | C21Y | |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August 23, 2021 | August 20, 2025 |
| In The Box | 1 realme P4 5G, 1 USB Type-C Cable, 1 Power Adapter , 1 Protect Case, 1 SIM Card Needle, 1 Quick Guide | |
| Design | ||
| Dimensions | 76 x 164.5 x 9.1 mm | 75.88 x 163.34 x 7.58 mm |
| Weight | 200 g | 185 g |
| Bezel less | No | |
| Colors | Steel Gray, Engine Blue, Forge Red | |
| Display | ||
| Type | Color IPS LCD Screen (16.7M) | Color AMOLED Screen (1B Colors) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.5 inches, 720 x 1600 pixels, 60 Hz | 6.77 inches, 1080 x 2392 pixels, 144 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 269 PPI | ~ 390 PPI |
| Screen to Body Ratio | ~ 88.7% | ~ 94% |
| Brightness | 1600nit(HBM), 4500nit Peak Brightness | |
| Features | Sunlight Screen Support, COG Sealing Process | Contrast Ratio: 5,000,000:1, 2500Hz Instantaneous Touch Sampling Rate, 3840Hz PWM Dimming |
| Notch | Yes, Water Drop Notch | Yes, Punch Hole |
| Memory | ||
| RAM | 4 GB | 6 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 64 GB | 128 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes, upto 256 GB | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | NR: n1/n3/n5/n8/n28B/n40/n41/n77/n78 | |
| 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 Wi-Fi 5 / Wi-Fi 6 | |
| Bluetooth | Yes, v5.0 | Yes, v5.4 |
| USB | Yes, microUSB | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | Yes | |
| Extra | ||
| GPS | With A-GPS, Beidou, Glonass | Beidou, GPS, GLONASS, Galileo |
| Fingerprint Sensor | Yes, Rear | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro-meter, Acceleration Sensor, Compass | Proximity Sensor, Ambient Light Sensor, Color Temperature Sensor, E-Compass, Accelerometer, Gyroscope, Rear Infrared Remote Control, Optical Fingerprint |
| 3.5mm Headphone Jack | Yes | No |
| Water Resistance | 2.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP65 & IP66 | |
| Dust Resistant | Yes | |
| Extra Features | Hyper Vision AI Chip | |
| 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 (Main) OV50D40 sensor, Support AF Only, Pixels: 50MP, Lens: 5P, FOV: 76° 8 MP (Wide Angle) Equivalent Focal Length：16mm, FOV：112°, Aperture：f/2.2, Lens：5P |
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes |
| Features | Beauty, Filter, HDR, Panoramic View, Refocus, Timelapse, Slo-mo, NightScape, Expert | Photo, Video, Portrait, Night, Panorama, Cinematic, SLO-MO, Long Exposure, Dual-view video, TIME-LAPSE, HI-RES, Google Lens, PRO, Hypertext, Scan, TILT-SHIFT |
| Video Recording | 1080p @ 30 fps FHD, 720P | 4K @ 30 fps UHD, 1080p @ 30/60 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2.2 Screen Flash | 16 MP ƒ/2.4 (Wide Angle) Lens: 4P, FOV: 85° Punch Hole, Screen Flash |
| Front Video Recording | 720p | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v11 | Android v15 |
| Custom UI | Realme UI 6 | |
| Chipset | Unisoc T610 | mediatek Dimensity 7400 Ultra |
| CPU | 1.8 GHz, Octa Core Processor | 2.6 GHz, Octa Core Processor |
| GPU | Mali-G52 | Arm Mali-G615 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MPEG, AMRNB, AMRWB, AAC, G711.ALAW, G711.MLAW, VORBIS, OPUS, FLAC | MP3, AAC, APE, AMR, WAV, OGG, FLAC, WMA |
| Video | H.264, MPEG-4, H.263, Sorenson Spark, VP8, VP9, H.265 | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV |
| FM Radio | No | No |
| Speaker Type | Dual Stereo | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 7000 mAh |
| Fast Charging | Yes, 80W Fast Charging | |
| Reverse Charging | Yes | |