Realme 12 4G vs Samsung Galaxy A51 (8GB RAM + 128GB)
Here you can compare Realme 12 4G and Samsung Galaxy A51 (8GB RAM + 128GB). Comparing Realme 12 4G vs Samsung Galaxy A51 (8GB RAM + 128GB) on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Realme 12 4G stands against Samsung Galaxy A51 (8GB RAM + 128GB) and which one should you buy The current lowest price found for Realme 12 4G is ₹16,990 and for Samsung Galaxy A51 (8GB RAM + 128GB) is ₹20,499. The details of both of these products were last updated on Nov 20, 2025.
| Specification | Realme 12 4G | Samsung Galaxy A51 (8GB RAM + 128GB) |
|---|---|---|
| Internal Memory | 128 GB | 128 GB |
| OS | Android v14 | Android v10, upgradable to v11 |
| Battery | 5000 mAh | 4000 mAh, Li-Po Battery |
| CPU | 2.8 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| RAM | 8 GB | 8 GB |
| Price | ₹16,990 | ₹20,499 |
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Overview
| Specs Score | 82 / 100 | 82 / 100 |
| Display Resolution | 1080 x 2400 pixels Better Resolution | 1080 x 2340 pixels |
| CPU Clock Speed | 2.8 GHz Faster Clock Speed | 2.3 GHz |
| Front Camera | 16 MP | 32 MP Better Front Camera Resolution |
| Weight | 187 g | 172 g Lighter |
| Battery | 5000 mAh Bigger Battery | 4000 mAh |
| Unique Features | 5G No NFC Reverse Charging | No FM Radio No No |
General
| Model | 12 4G | Galaxy A51 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | June 26, 2024 | January 29, 2020 |
Design
| Dimensions | 75.5 x 163 x 7.9 mm | 73.6 x 158.5 x 7.9 mm |
| Weight | 187 g | 172 g |
| Bezel less | No | |
| Colors | Skyline Silver, Pioneer Green |
Display
| Type | Color IPS Screen (16.7M) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.67 inches, 1080 x 2400 pixels, 120 Hz | 6.5 inches, 1080 x 2340 pixels |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 395 PPI | ~ 405 PPI |
| Screen to Body Ratio | ~ 87.3% | ~ 87.4% |
| Features | 600 nits (typ), 2000 nits (peak) | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 8 GB | 8 GB |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Card Slot | Yes, (Hybrid Slot), upto 2 TB | Yes, upto 512 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(2535-2655MHz)/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 802.11 a/b/g/n/ac, dual-band | |
| Bluetooth | Yes, v5.0, Support SBC, AAC, APTX, APTX-HD, LDAC, LHDC | Yes, v5.0 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB on-the-go, USB Charging |
Extra
| GPS | Yes, with GPS, Beidou, Glonass, Galileo, QZSS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| Splash Resistant | Yes | |
| IP Rating | IP54 | |
| Dust Resistant | Yes |
Camera
| Rear Camera | 50 MP ƒ/1.9 (Wide Angle) 26mm, 1/1.95", PDAF, OIS 2 MP ƒ/2.4 (Depth Sensor) | 48 MP ƒ/2 (Wide Angle) 12 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro) Macro 5 MP ƒ/2.2 (Depth Sensor) |
| Camera Sensor | Sony LYT-600 | |
| OIS | Yes | |
| Auto Focus | Yes | Yes |
| Features | HDR, panorama | Panorama, HDR |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2.5 (Wide Angle) Punch Hole, Screen Flash | 32 MP ƒ/2.2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
Technical
| OS | Android v14 | Android v10, upgradable to v11 |
| Custom UI | Realme UI 5.0 | |
| Chipset | Qualcomm Snapdragon 685 | Samsung Exynos 9611 |
| CPU | 2.8 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 4x Cortex-A73@2.8 GHz & 4x Cortex-A53@1.9 GHz | 4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53 |
| GPU | Adreno 610 | Mali-G72 MP3 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
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 | Yes |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 67W SUPERVOOC Charge | Yes, 15W Fast Charging |
| Reverse Charging | Yes |
Discuss
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