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                            | Nokia Lumia 520 | Realme 15 Pro | 
| Build | |
|---|---|
| OS | |
| Microsoft Windows Phone 8 | Android 15 OS | 
| UI | |
| Realme UI 6.0 | |
| Dimensions | |
| 119.9 x 64 x 9.9 mm, 75.7 cc | 162.26 x 76.15 x 7.79 mm (Flowing Silver), 162.26 x 76.15 x 7.84 mm (Velvet Green) | 
| Weight | |
| 124 g | 187 g | 
| SIM | |
| Micro-SIM | Nano-SIM + Nano-SIM | 
| Colors | |
| Yellow, red, cyan, white / black | Flowing Silver, Velvet Green | 
| Network | |
|---|---|
| 2G Band | |
| GSM 900 / 1800 / 1900 | SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: GSM 850 / 900 / 1800 / 1900 | 
| 3G | |
| Yes | Yes | 
| 4G | |
| No | Yes | 
| 5G | |
| No | Yes | 
| Processor | |
|---|---|
| CPU | |
| Dual-core 1 GHz | Octa-core (1 x 2.8 GHz Cortex-720 + 4 x 2.4 GHz Cortex-720 + 3 x 1.8 GHz Cortex-520) | 
| Chipset | |
| Qualcomm MSM8227 | Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm) | 
| GPU | |
| Adreno 722 | |
| Display | |
|---|---|
| Technology | |
| IPS LCD capacitive touchscreen, 16M colors, Multitouch | AMOLED Capacitive Touchscreen, 1B Colors | 
| Size | |
| 4.0 inches | 6.8 Inches | 
| Resolution | |
| 480 x 800 pixels | 1280 x 2800 Pixels (~453 PPI) | 
| Protection | |
| Scratch-resistant glass | Corning Gorilla Glass 7i | 
| Extra Features | |
| 144Hz, 4608Hz PWM, 1800 nits (HBM), 6500 nits (peak) | |
| Memory | |
|---|---|
| Built-in | |
| 8GB built-in, 512 MB RAM | 512GB Built-in, 12GB RAM (+14GB Dynamic RAM), UFS 3.1 | 
| External Card | |
| microSD card (supports up to 64GB) | No | 
| Camera | |
|---|---|
| Main | |
| 5 MP, 2592x1936 pixels, autofocus | Dual Camera: 50 MP, f/1.8, 24mm (wide), 1/1.56", PDAF, OIS + 50 MP, f/2.0, (ultrawide), 1/2.88", LED Flash | 
| Features | |
| 1/4 inches sensor size, Geo tagging, Video (720p, 30fps) | HDR, Panorama, Video (4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, OIS) | 
| Front | |
| No | 50 MP, f/2.4, 23mm (wide), 1/2.88", Panorama, Video (4K@30/60fps, 1080p@30/60fps) | 
| Connectivity | |
|---|---|
| WLAN | |
| Wi-Fi 802.11 a/b/g/n, dual-band | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band | 
| Bluetooth | |
| v3.0 with A2DP | v5.4 with A2DP, LE | 
| GPS | |
| Yes + A-GPS support & Glonass | Yes + A-GPS support & Glonass, BDS, GALILEO | 
| Radio | |
| No | |
| USB | |
| Yes | USB Type-C 2.0 | 
| NFC | |
| No | Yes | 
| Data | |
| GPRS Class B, EDGE, 3G (HSDPA 21.1 Mbps) | 2G GSM, 3G HSPA, 4G LTE, 5G Capable | 
| Sensors | |
|---|---|
| Accelerometer | |
| Yes | Yes | 
| Gyro | |
| No | Yes | 
| Compass | |
| No | Yes | 
| Proximity | |
| Yes | Yes | 
| FingerPrint | |
| No | Yes | 
| Features | |
|---|---|
| Audio | |
| 3.5mm audio jack, Speakerphone | 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone | 
| Browser | |
| HTML5 | HTML5 | 
| Messaging | |
| SMS (threaded view), MMS, Email, Push Email, IM | SMS(threaded view), MMS, Email, Push Mail, IM | 
| Games | |
| built-in | Built-in + Downloadable | 
| Battery | |
|---|---|
| Capacity | |
| Li-ion Si-Ca 7000 mAh | |
| Standby | |
| Up to 360 h | |
| Talktime | |
| Up to 14 h 40 m | |
| Musicplay | |
| Up to 61 h | |
| Features | |
| Fast battery 80W wired, 50% in 25 min | |
| Price | |
|---|---|
| Price in Rs. | |
| Discontinued | Rs. 159,999 PKR | 
| Price in USD | |
| Discontinued | $555.55 USD |