Realme C51 (4GB RAM + 128 GB) vs OPPO A3x 4G
Here you can compare Realme C51 (4GB RAM + 128 GB) and OPPO A3x 4G. Comparing Realme C51 (4GB RAM + 128 GB) vs OPPO A3x 4G on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme C51 (4GB RAM + 128 GB) stands against OPPO A3x 4G and which one should you buy The current lowest price found for Realme C51 (4GB RAM + 128 GB) is ₹15,990 and for OPPO A3x 4G is ₹17,900. The details of both of these products were last updated on Sep 21, 2026.
| Specification | Realme C51 (4GB RAM + 128 GB) | OPPO A3x 4G |
|---|---|---|
| Battery | 5000 mAh, Li-Po Battery | 5100 mAh, Li-ion Battery |
| CPU | 1.8 GHz, Octa Core Processor | Octa Core Processor |
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White | 8 MP ƒ/2 (Wide Angle) |
| RAM | 4 GB | 4 GB |
| Display | 6.74 inches, 720 x 1600 pixels, 90 Hz | 6.67 inches, 720 x 1604 pixels, 90 Hz |
| Price | ₹15,990 | ₹17,900 |
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Overview
| Specs Score | 48 / 100 Better Specs | 40 / 100 |
| Display Resolution | 720 x 1600 pixels | 720 x 1604 pixels Better Resolution |
| Screen To Body Ratio | ~ 90.3% Less Bezels | ~ 85% |
| Storage | 128 GB More Storage | 64 GB |
| CPU Clock Speed | 1.8 GHz Faster Clock Speed | |
| Rear Camera | 50 MP + 0.08 MP Dual Better Camera Resolution | 8 MP Dual |
| Unique Features | Reverse Charging | No |
General
| Model | C51 | CPH2641 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| SAR | 1.15 W/kg (Head) 1.05 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | September 04, 2023 | August 20, 2024 |
| In The Box | Handset, Charger, USB Data Cable, Sim Ejector Tool, Quick Guide, Protective Case |
Design
| Dimensions | 76.67 x 167.16 x 7.99 mm | 76.1 x 165.8 x 7.68 mm |
| Weight | 186 g | 186 g |
| Bezel less | No | |
| Colors | Carbon Black, Mint Green | Nebula Red, Ocean Blue |
Display
| Type | Color IPS Screen (16.7M) | Color IPS Screen (16.7 M) |
| Touch | Yes, 180 Hz Touch Sampling Rate | Yes, 180 Hz Touch Sampling Rate |
| Size | 6.74 inches, 720 x 1600 pixels, 90 Hz | 6.67 inches, 720 x 1604 pixels, 90 Hz |
| Aspect Ratio | 20.1:9 | |
| PPI | ~ 262 PPI | ~ 264 PPI |
| Screen to Body Ratio | ~ 90.3% | ~ 85% |
| Glass Type | Panda (twice-reinforced) | |
| Features | Brightness: 560 nit, Color Saturation: 96% NTSC, Sunlight Screen Support, Screen Contrast: 1500:1, | Vivid mode: 83% NTSC, Gentle mode: 71% NTSC, Maximum brightness under sunlight: 1000nits |
| Notch | Yes, Water Drop Notch | Yes, Punch Hole |
Memory
| RAM | 4 GB | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 128 GB | 64 GB |
| Card Slot | Yes, upto 2 TB | Yes, (Hybrid Slot) |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | No | |
| VoLTE | Yes, Dual Stand-By | 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) | Wi-Fi 5 (802.11ac), 802.11a/b/g/n |
| Bluetooth | Yes, v5.0 | Yes, v5.0 |
| 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 |
Extra
| GPS | with AGPS, BEIDOU, GALILEO | Yes with A-BeiDou, GPS, GLONASS, Galileo, and QZSS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro Meter (Soft Gyroscope), Acceleration Sensor | Geomagnetic Sensor, Ambient Light Sensor, Proximity sensor, Accelerometer, Gravity sensor, Pedometer |
| 3.5mm Headphone Jack | Yes | Yes |
| Water Resistance | No | |
| Splash Resistant | Yes | |
| IP Rating | IP54 | |
| Dust Resistant | Yes | |
| Extra Features | Mini Capsule, Press to Answer Calls, Wake Up Voice Assistant, Switch The Music, Night Shield Google Lens, Data Backup, Office Tools, World Time | LPDDR4x RAM and eMMC 5.1 |
Camera
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) 0.08 MP ƒ/3 Black and White | 8 MP ƒ/2 (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | 50MP Mode, Video, Night Mode, Panoramic View, Expert, Timelapse, Portrait Mode, HDR, AI Scene Recognition, Filter, Slow Motion | Pro, Video, Photo, Night, Pano, Slo-mo, Time-lapse, Sticker, Text Scanner, and Extra HD |
| Video Recording | 1080p @ 30 fps FHD, 720p | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2 (Wide Angle) Screen Flash | 5 MP ƒ/2.2 (Wide Angle) Punch Hole |
| Front Video Recording | 720p @ 30 fps HD, 480p | 1080p @ 30 fps FHD |
Technical
| OS | Android v13 | Android v14 |
| Custom UI | Realme UI T-edition | ColorOS 14.0.1 |
| Chipset | Unisoc T612 | Qualcomm Snapdragon 6s Gen1 4G |
| CPU | 1.8 GHz, Octa Core Processor | Octa Core Processor |
| GPU | Mali-G57 | Adreno 610@1050MHz |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, WMA, MKA | Yes |
| Video | MP4, 3GP, ASF, AVI, FLV, M2TS, MKV, MPG, TS, WEBM, WMV | Yes |
| FM Radio | No | No |
| Document Reader | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 5100 mAh, Li-ion Battery |
| Fast Charging | Yes, 33W | Yes, 45W SUPERVOOC Charging |
| Reverse Charging | Yes |
Discuss
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