Xiaomi Redmi 15C 5G vs Samsung Galaxy S21 Ultra
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Overview
| Specs Score | 55 / 100 | 77 / 100 Better Specs |
| Display Resolution | 720 x 1600 pixels | 1440 x 3200 pixels Better Resolution |
| Screen To Body Ratio | ~ 82.1% | ~ 89.8% Less Bezels |
| RAM | 4 GB | 12 GB More RAM |
| Storage | 128 GB | 256 GB More Storage |
| CPU Clock Speed | 2.4 GHz | 2.9 GHz Faster Clock Speed |
| Rear Camera | 50 MP + Auxiliary lens Dual | 108 MP Quad Better Camera Resolution |
| Front Camera | 8 MP | 40 MP Better Front Camera Resolution |
| Weight | 211 g Lighter | 227 g |
| Thickness | 7.99 mm Slimmer | 8.9 mm |
| Battery | 6000 mAh Bigger Battery | 5000 mAh |
| Unique Features | 3.5mm Audio Jack FM Radio No No Memory Card Support No | No No Water Resistant NFC No Wireless Charging |
General
| Model | 15C 5G | 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 |
| OS Updates | 2 years | |
| Security Updates | 4 years | |
| Release Date | December 03, 2025 | January 14, 2021 |
| In The Box | Dark Purple, Moonlight Blue, Midnight Black |
Design
| Dimensions | 79.47 x 171.56 x 7.99 mm | 75.6 x 165.1 x 8.9 mm |
| Weight | 211 g | 227 g |
Display
| Type | Color IPS LCD Screen (16M Colors) | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes |
| Size | 6.9 inches, 720 x 1600 pixels, 120 Hz | 6.8 inches, 1440 x 3200 pixels, 120 Hz |
| Aspect Ratio | 20.6:9 | 20:9 |
| PPI | ~ 254 PPI | ~ 515 PPI |
| Screen to Body Ratio | ~ 82.1% | ~ 89.8% |
| Glass Type | Corning Gorilla Glass Victus | |
| Brightness | 660 nits (typ), 810 nits HBM | |
| HDR Support | Yes, HDR10+ | |
| Color Gamut | 83% NTSC | |
| Features | TÜV Rheinland Low Blue Light (Software Solution) Certified, TÜV Rheinland Circadian Friendly Certified, TÜV Rheinland Flicker Free Certified, Contrast ratio: 1200:1, | Always-on Display, HDR10+, Curved Display |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes |
Memory
| RAM | 4 GB | 12 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | |
| Storage | 128 GB | 256 GB |
| Storage Type | UFS 2.2 | UFS 3.1 |
| Card Slot | Yes, upto 1 TB |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n40/n78/n8 | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi: 2.4GHz | 5GHz | |
| Bluetooth | Yes, v5.4, A2DP, LE | Yes, v5.2, A2DP, LE |
| USB | Yes | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | No |
Performance
| Geekbench Score | 1,942 (Multi Core) (v6) 735 (Single Core) 1,420 (OpenCL) 1,405 (Vulkan) |
Extra
| GPS | GPS | Glonass | Galileo | Beidou | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Virtual Proximity Sensor, Ambient Light Sensor Accelerometer, Electronic compass | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | Yes | No |
| NFC | Yes | |
| AI Features | Gemini, Circle to Search | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | IP68 |
| Dust Resistant | Yes | Yes |
Camera
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) (Auxiliary lens) | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| OIS | Yes | |
| Auto Focus | Yes | Yes |
| Features | HDR Mode, Night Mode, Auto Night Mode, Portrait Mode, Time-lapse | Auto-HDR, Panorama |
| Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 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 | 8 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus |
| Front Video Recording | 1080p @ 30 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
Technical
| OS | Android v15 | Android v10 |
| Custom UI | HyperOS 2 | |
| Chipset | Mediatek Dimensity 6300 | Samsung Exynos 2100 |
| CPU | 2.4 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 |
| GPU | Arm Mali-G57 MC2 | Mali-G78 MP14 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 6000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes | Yes, 4.5W |
Discuss
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