OPPO F21 Pro 5G has better RAM than Realme P4 5G. In terms of display resolution, OPPO F21 Pro 5G has better resolution of 2400 x 1080 than Realme P4 5G which has resolution of 2392 x 1080. Both have the same amount of internal memory.
| Name | Realme P4 5G | OPPO F21 Pro 5G |
| RAM | 6 GB | 8 GB |
|---|---|---|
| Display | 6.77 in | 6.43 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 7000 mAh | 4500 mAh |
| Camera | 50 MP + 8 MP Dual | 64 MP + 2 MP + 2 MP Triple |
| Price | Rs. 17499 | Rs. 18990 |
The launch Date of the first phone is August 20, 2025. The cost of Realme P4 5G is Rs. 17499. The launch Date of the second phone is April 12, 2022. The cost of OPPO F21 Pro 5G is Rs. 18990.
OPPO F21 Pro 5G has screen size of 6.43 inches which falls short to Realme P4 5G's 6.77 inch screen. There is AMOLED Screen Type in both the phones. OPPO's phone has display density of 409 PPI & Realme's phone has only 390 PPI display density. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 94% than OPPO's phone ~ 90.8%. Both phones have same aspect ratio of 20:9.
OPPO F21 Pro 5G's larger 8 GB RAM is better for playing games and all with respect to Realme P4 5G's lower 6 GB RAM. and both have same Internal Memory of 128 GB.
OPPO F21 Pro 5G's 64 MP + 2 MP + 2 MP Triple Rear Camera outshines Realme P4 5G's 50 MP + 8 MP Dual Rear Camera in terms of resolution. Both of them stand equal in terms of Front Camera Resolution as both have 16 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 12 version.
| Name | Realme P4 5G | OPPO F21 Pro 5G |
| General | ||
| Country of Origin | India | |
| Model | F21 Pro 5G | |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | August 20, 2025 | April 12, 2022 |
| 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 | 75.88 x 163.34 x 7.58 mm | 73.2 x 159.9 x 7.5 mm |
| Weight | 185 g | 173 g |
| Bezel less | No | |
| Colors | Steel Gray, Engine Blue, Forge Red | |
| Display | ||
| Type | Color AMOLED Screen (1B Colors) | Color AMOLED Screen (16.7M) |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes |
| Size | 6.77 inches, 1080 x 2392 pixels, 144 Hz | 6.43 inches, 1080 x 2400 pixels, 60 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 390 PPI | ~ 409 PPI |
| Screen to Body Ratio | ~ 94% | ~ 90.8% |
| Glass Type | Schott Xensation glass | |
| Brightness | 1600nit(HBM), 4500nit Peak Brightness | |
| Features | Contrast Ratio: 5,000,000:1, 2500Hz Instantaneous Touch Sampling Rate, 3840Hz PWM Dimming | Vivid Mode: 97% NTSC/93% DCI-P3, Gentle Mode: sRGB |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 6 GB | 8 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | Upto 5 GB Extra Virtual RAM |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | UFS 2.2 |
| Card Slot | Yes, upto 1 TB | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | NR: n1/n3/n5/n8/n28B/n40/n41/n77/n78 | n1/n8/n28A/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 | Wi-Fi 802.11, b/g/n |
| Bluetooth | Yes, v5.4 | Yes, v5.1 |
| USB | Yes, USB-C v2.0 | Yes, USB-C |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Beidou, GPS, GLONASS, Galileo | yes with A-GPS, BeiDou, GLONASS, Galileo |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Proximity Sensor, Ambient Light Sensor, Color Temperature Sensor, E-Compass, Accelerometer, Gyroscope, Rear Infrared Remote Control, Optical Fingerprint | Geomagnetic Sensor, Proximity Sensor, Optical Sensor, Accelerometer, Gravity Sensor, Gyroscope, Pedometer, Compass |
| 3.5mm Headphone Jack | No | Yes |
| Water Resistance | 2.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP65 & IP66 | IPX4 |
| Dust Resistant | Yes | |
| Extra Features | Hyper Vision AI Chip | |
| Camera | ||
| Rear Camera | 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 | 64 MP ƒ/1.7 (Wide Angle) 2 MP ƒ/2.4 Monochrome 2 MP ƒ/2.4 (Macro) Macro |
| Auto Focus | Yes | Yes |
| Features | Photo, Video, Portrait, Night, Panorama, Cinematic, SLO-MO, Long Exposure, Dual-view video, TIME-LAPSE, HI-RES, Google Lens, PRO, Hypertext, Scan, TILT-SHIFT | Panorama, Portrait, Time-lapse, Slow-motion, Text Scanner, Google Lens, Extra HD, Macro, Sticker, Dual-view Video |
| Video Recording | 4K @ 30 fps UHD, 1080p @ 30/60 fps FHD | 1080p, 720p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2.4 (Wide Angle) Lens: 4P, FOV: 85° Punch Hole, Screen Flash | 16 MP ƒ/2.4 Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p |
| Technical | ||
| OS | Android v15 | Android v12 |
| Custom UI | Realme UI 6 | |
| Chipset | mediatek Dimensity 7400 Ultra | Qualcomm Snapdragon 695 |
| CPU | 2.6 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver | |
| GPU | Arm Mali-G615 | Adreno 619 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AAC, APE, AMR, WAV, OGG, FLAC, WMA | Yes |
| Video | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV | Yes |
| FM Radio | No | No |
| Speaker Type | Dual Stereo | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh | 4500 mAh, Li-Po Battery |
| Fast Charging | Yes, 80W Fast Charging | Yes, 33W Fast Charging |
| Reverse Charging | Yes | Yes |