OPPO F21 vs Realme P4x 5G
Quick Comparison
Both OPPO F21 and Realme P4x 5G comes with same RAM. Realme P4x 5G has more internal memory than OPPO F21
| Name | OPPO F21 | Realme P4x 5G |
| RAM | 6 GB | 6 GB |
|---|---|---|
| Display | 6.41 in | 6.72 in |
| Internal Memory | 64 GB | 128 GB |
| Battery | 5000 mAh | 7000 mAh |
| Camera | 48 MP + 8 MP + 2 MP Triple | 50 MP + 2 MP Dual |
| Price | Rs. 17990 | Rs. 17949 |
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Detailed Comparison
Price And Launch
The cost of OPPO F21 is Rs. 17990. The launch Date of the second phone is December 04, 2025. The cost of Realme P4x 5G is Rs. 17949.
Display comparison
OPPO F21 has screen size of 6.41 inches which falls short to Realme P4x 5G's 6.72 inch screen. OPPO F21 has AMOLED Screen type where as Realme P4x 5G has LCD Screen type. OPPO's phone has display density of 411 PPI & Realme's phone has only 391 PPI display density. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 91.4% than OPPO's phone ~ 90.8%. Both phones have same aspect ratio of 20:9.
Memory comparison
Both mobiles come with 6 GB RAM Realme P4x 5G has more Internal Memory (128 GB) than OPPO F21 (64 GB).
Camera comparison
Realme P4x 5G's 50 MP + 2 MP Dual Rear Camera outclasses OPPO F21's 48 MP + 8 MP + 2 MP Triple Rear Camera in terms of resolution. OPPO F21 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 P4x 5G's 8 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.
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Full Comparison
| Name | OPPO F21 | Realme P4x 5G |
| General | ||
| Model | F21 | RMX5108 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| OS Updates | 2 years | |
| Security Updates | 3 years | |
| Release Date | December 04, 2025 | |
| In The Box | 1 x Handset, 1 x Charger, 1 x USB data cable, 1 x SIM Ejector Tool, 1 x Protective Case, 1 x Quick Guide | |
| Design | ||
| Dimensions | 73.8 x 160.3 x 8 mm | 75.95 x 165.85 x 8.39 mm |
| Weight | 175 g | 208 g |
| Bezel less | No | |
| Colors | Matte Sliver, Elegant Pink, Lake Green | |
| Display | ||
| Type | Color AMOLED Screen (16M Colors) | Color LCD Screen (1B Colors) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.41 inches, 1080 x 2400 pixels | 6.72 inches, 1080 x 2400 pixels, 144 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 411 PPI | ~ 391 PPI |
| Screen to Body Ratio | ~ 90.8% | ~ 91.4% |
| Brightness | 1000nits Sunlight Display | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 6 GB | 6 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 10 GB Extra Virtual RAM | |
| Storage | 64 GB | 128 GB |
| Storage Type | UFS 2.1 | UFS 3.1 |
| Card Slot | Yes, upto 256 GB | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 6 (802.11ax) Supported | |
| Bluetooth | Yes, v5.1, A2DP, LE, aptX HD | Yes, v5.4 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | No | |
| Performance | ||
| AnTuTu Score | 1,001,028 (Total) (v11) 353,428 (CPU) 149,704 (GPU) 210,954 (Memory) 286,942 (UX) | |
| Geekbench Score | 2,971 (Multi Core) (v6) 1,045 (Single Core) 3,047 (OpenCL) 2,930 (Vulkan) | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | GNSS: SIngle band: BeiDou, GPS, GLONASS,Galileo,QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass | Geomagnetic Sensor, Proximity Sensor, Light Sensor, Acceleration Sensor, Gyroscope |
| 3.5mm Headphone Jack | Yes | |
| AI Features | AI Image Editing, NEXT AI, AI Text Scanner, Circle to Search, AI Smart Loop, AI Recording Summary | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | |
| Dust Resistant | Yes | |
| Extra Features | Bypass Charging, 5300mm² VC FrostCore Cooling System | |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.7 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro | 50 MP (Wide Angle) 2 MP |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | Photo, Video, Portrait, Night, Panorama, Cinematic, SLO-MO, Long Exposure, Dual-view video, TIME-LAPSE, HI-RES, Google Lens, PRO, Hypertext, Scan, DOC SCANNER, TILT-SHIFT |
| Video Recording | 4K @ 30 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 4K @ 30 fps UHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash | 8 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v11 | Android v15 |
| Custom UI | Realme UI 6 | |
| Chipset | Qualcomm Snapdragon 665 | Mediatek Dimensity 7400 Ultra |
| CPU | 2 GHz, Octa Core Processor | 2.6 GHz, Octa Core Processor |
| Core Details | 4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver | 4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 |
| GPU | Adreno 610 | Mali-G615 MC2 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | MP3, AAC, APE, AMR, WAV, OGG, FLAC, WMA |
| Video | Yes | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV |
| FM Radio | No | No |
| Speaker Type | Dual Stereo | |
| Audio Features | 400% Volume | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 7000 mAh |
| Fast Charging | Yes, 18W Fast Charging | Yes, 45W Ultra Charge |
| Reverse Charging | Yes, 5W | |
| Bypass Charging | Yes | |