Realme 15 Pro 5G vs Samsung Galaxy S21 Ultra
Quick Comparison
Samsung Galaxy S21 Ultra has better RAM than Realme 15 Pro 5G. In terms of display resolution, Samsung Galaxy S21 Ultra has better resolution of 3200 x 1440 than Realme 15 Pro 5G which has resolution of 2800 x 1280. Samsung Galaxy S21 Ultra has more internal memory than Realme 15 Pro 5G
| Name | Realme 15 Pro 5G | Samsung Galaxy S21 Ultra |
| RAM | 8 GB | 12 GB |
|---|---|---|
| Display | 6.8 in | 6.8 in |
| Internal Memory | 128 GB | 256 GB |
| Battery | 7000 mAh | 5000 mAh |
| Camera | 50 MP + 50 MP Dual | 108 MP Quad |
| Price | Rs. 29799 | Rs. 48990 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is July 24, 2025. The cost of Realme 15 Pro 5G is Rs. 29799. The launch Date of the second phone is January 14, 2021. The cost of Samsung Galaxy S21 Ultra is Rs. 48990.
Display comparison
Both the phones have Screen Type. Samsung's phone has display density of 515 PPI & Realme's phone has only 453 PPI display density. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 94% than Samsung's phone ~ 89.8%.
Memory comparison
Samsung Galaxy S21 Ultra's larger 12 GB RAM is better for playing games and all with respect to Realme 15 Pro 5G's lower 8 GB RAM. Samsung Galaxy S21 Ultra has more Internal Memory (256 GB) than Realme 15 Pro 5G (128 GB).
Camera comparison
Samsung Galaxy S21 Ultra's 108 MP Quad Rear Camera outclasses Realme 15 Pro 5G's 50 MP + 50 MP Dual Rear Camera in terms of resolution. Realme 15 Pro 5G will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Samsung Galaxy S21 Ultra's 40 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 15 and the second one on 10 version.
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Full Comparison
| Name | Realme 15 Pro 5G | Samsung Galaxy S21 Ultra |
| General | ||
| Country of Origin | India | |
| Model | 15 Pro | Galaxy S21 Ultra 5G |
| 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 |
| Release Date | July 24, 2025 | January 14, 2021 |
| In The Box | 1 realme 15 Pro 5G, 1 USB Type-C Cable, 1 Power Adapter , 1 Protect Case, 1 SIM Card Needle, 1 Quick Guide | |
| Design | ||
| Dimensions | 76.15 x 162.26 x 7.69 mm | 75.6 x 165.1 x 8.9 mm |
| Weight | 187 g | 227 g |
| Bezel less | Yes | |
| Colors | Velvet Green, Silk Purple, and Flowing Silver | |
| Display | ||
| Type | Color HyperGlow 4D Curve+ Display (1.07 billion) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes |
| Size | 6.8 inches, 1280 x 2800 pixels, 144 Hz | 6.8 inches, 1440 x 3200 pixels, 120 Hz |
| Aspect Ratio | 20:9 | |
| PPI | ~ 453 PPI | ~ 515 PPI |
| Screen to Body Ratio | ~ 94% | ~ 89.8% |
| Glass Type | Corning Gorilla Glass | Corning Gorilla Glass Victus |
| Brightness | Brightness: 1800nit（HBM）/ 6500nit Peak Brightness | |
| Features | 2500Hz Instantaneous Touch Sampling Rate, Dimming: 4608Hz PWM Dimming | Always-on Display, HDR10+, Curved Display |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | Yes |
| Memory | ||
| RAM | 8 GB | 12 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 12 GB Extra Virtual RAM | |
| Storage | 128 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | NR: n1/n3/n5/n8/n28B/n40/n41/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Support 2.4/5GHz Wi-Fi Support Wi-Fi 5 / Wi-Fi 6 | |
| Bluetooth | Yes, v5.4 | Yes, v5.2, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v3.2 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Single band: Beidou, GPS, GLONASS, Galileo, QZSS | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Proximity, Ambient light , Color temperature, E-compass, Accelerometer, Gyroscope | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | |
| AI Features | Ai Edit Genie, Next AI (Ai Mobile, AI Party Mode, Triple Party AI Algorithms, AI Inspiration, AI Snap Mode, AI gmaing Coach, Ai Ultra Touch Control, AI Multi-Tasker, AI MagicGlow 2.0 | |
| Water Resistance | Yes | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 & IP69 | IP68 |
| Dust Resistant | Yes | Yes |
| Extra Features | GT Boost, 7000mm² AirFlow VC, Bypass Charging | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Main) Lens: 6P, FOV: 84.4°, Aperture: f/1.8, Focal Length: 24mm 50 MP ƒ/2.2 (Ultra Wide) Lens：6P, FOV：115.6°, Aperture：f/2.0 | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| Camera Sensor | Sony IMX896 OIS Camera | |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Photo, Video, Portrait, AI Landscape, Night, Hi-Res, Pro, Pano, Street, Film, Slo-Mo, Time-Lapse, Long Exposure, Dual-Video, Underwater, Text Scanner, Breeno Scan, Starry Mode, Tilt-Shift, Googlen Lens | Auto-HDR, Panorama |
| Video Recording | 4K @ 60 fps UHD, 1080p @ 60 fps FHD | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 50 MP (Wide Angle) Lens: 5P, FOV: 86.7°, Aperture: f/2.4 Punch Hole, Screen Flash | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus |
| Front Video Recording | 4K @ 60 fps UHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v15 | Android v10 |
| Custom UI | realme UI 6 | |
| Chipset | Qualcomm Snapdragon 7 Gen4 | Samsung Exynos 2100 |
| CPU | 2.8 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 1x Prime Core@ 2.8 GHz& 4 Performance Cores@ 2.4 GHz & 3x Efficiency Cores@ 1.8 GHz | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 |
| Fabrication Node | TSMC 4nm | |
| GPU | Adreno GPU | Mali-G78 MP14 |
| NPU | Qualcomm Hexagon NPU | |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG VORBIS | Yes |
| Video | MP4, 3GP, 3G2, 3GPP2, M4V, MKV | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh, Titan Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 80W Ultra Charge | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes | Yes, 4.5W |