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                        Samsung Galaxy Note 21 Ultra | 
                    
                        Realme 15 Pro | 
                
| Build | |
|---|---|
| OS | |
| Android 11 OS | Android 15 OS | 
| UI | |
| One UI | Realme UI 6.0 | 
| Dimensions | |
| 164.8 x 77.2 x 8.1 mm | 162.26 x 76.15 x 7.79 mm (Flowing Silver), 162.26 x 76.15 x 7.84 mm (Velvet Green) | 
| Weight | |
| 208 g | 187 g | 
| SIM | |
| Hybrid Dual SIM, Dual Standby, eSIM (Nano-SIM) | Nano-SIM + Nano-SIM | 
| Colors | |
| Various | Flowing Silver, Velvet Green | 
| Network | |
|---|---|
| 2G Band | |
| 
                            SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: GSM 850 / 900 / 1800 / 1900  | 
                        
                            SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: GSM 850 / 900 / 1800 / 1900  | 
                    
| 3G | |
| Yes | Yes | 
| 4G | |
| Yes | Yes | 
| 5G | |
| No | Yes | 
| Processor | |
|---|---|
| CPU | |
| 2.73 Ghz Octa Core | Octa-core (1 x 2.8 GHz Cortex-720 + 4 x 2.4 GHz Cortex-720 + 3 x 1.8 GHz Cortex-520) | 
| Chipset | |
| Exynos 990 (7 nm+) | Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm) | 
| GPU | |
| Adreno 722 | |
| Display | |
|---|---|
| Technology | |
| Dynamic AMOLED 2X Capacitive Touchscreen, 16M Colors, Multitouch | AMOLED Capacitive Touchscreen, 1B Colors | 
| Size | |
| 6.9 Inches | 6.8 Inches | 
| Resolution | |
| 1440 x 3088 Pixels (~494 PPI) | 1280 x 2800 Pixels (~453 PPI) | 
| Protection | |
| Corning Gorilla Glass Victus | Corning Gorilla Glass 7i | 
| Extra Features | |
| HDR10+, Always-on display, 120Hz@FHD/60Hz@QHD refresh rate | 144Hz, 4608Hz PWM, 1800 nits (HBM), 6500 nits (peak) | 
| Memory | |
|---|---|
| Built-in | |
| 256GB Built-in, 12GB RAM | 512GB Built-in, 12GB RAM (+14GB Dynamic RAM), UFS 3.1 | 
| External Card | |
| microSD Card, (supports upto 1TB) | No | 
| Camera | |
|---|---|
| Main | |
| Triple Camera: 108 MP, f/1.8, 26mm (wide), 1/1.33", PDAF, Laser AF, OIS + 12 MP, f/3.0, 103mm (periscope telephoto), PDAF, OIS, 5x optical zoom, 50x hybrid zoom + 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", PDAF, Super Steady video, LED Flash | 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 | |
| Geo-tagging, touch focus, face/smile detection, Auto HDR, panorama, Video (8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS) | HDR, Panorama, Video (4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, OIS) | 
| Front | |
| 10 MP, f/2.2, 26mm (wide), 1/3.2, Dual video call, Auto-HDR, Video 4K@30/60fps, 1080p@30fps) | 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/ac/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band | 
| Bluetooth | |
| v5.0 with A2DP, LE, apt-X | v5.4 with A2DP, LE | 
| GPS | |
| Yes + A-GPS support & Glonass, BDS, GALILEO, BDS | Yes + A-GPS support & Glonass, BDS, GALILEO | 
| USB | |
| 3.2, Type-C 1.0 reversible connector, USB On-The-Go | USB Type-C 2.0 | 
| NFC | |
| Yes | Yes | 
| Data | |
| GPRS, Edge, 3G (HSPA 42.2/5.76 Mbps), 4G LTE-A | 2G GSM, 3G HSPA, 4G LTE, 5G Capable | 
| Sensors | |
|---|---|
| Accelerometer | |
| Yes | Yes | 
| Gyro | |
| Yes | Yes | 
| Compass | |
| Yes | Yes | 
| Proximity | |
| No | Yes | 
| Barometer | |
| Yes | No | 
| FingerPrint | |
| Yes | Yes | 
| Features | |
|---|---|
| Audio | |
| 32-bit/384kHz audio, MP4/DivX/XviD/WMV/H.265 player, MP3/WAV/WMA/eAAC+/FLAC player, Speaker Phone | 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone | 
| Browser | |
| HTML5 | HTML5 | 
| Messaging | |
| SMS(threaded view), MMS, Email, Push Mail, IM | SMS(threaded view), MMS, Email, Push Mail, IM | 
| Games | |
| Built-in + Downloadable | Built-in + Downloadable | 
| Battery | |
|---|---|
| Capacity | |
| (Li-Po Non removable), 4500 mAh | Li-ion Si-Ca 7000 mAh | 
| Features | |
| Fast charging 25W, USB Power Delivery 3.0, Fast Qi/PMA wireless charging 15W, Reverse wireless charging 4.5W | Fast battery 80W wired, 50% in 25 min | 
| Price | |
|---|---|
| Price in Rs. | |
| Discontinued | Rs. 159,999 PKR | 
| Price in USD | |
| Discontinued | $555.55 USD |