Xiaomi Redmi 15 4G vs Samsung Galaxy S21 4G
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Overview
| Specs Score | 54 / 100 | 70 / 100 Better Specs |
| Display Size | 6.9 in Bigger Display | 6.2 in |
| Display Resolution | 1080 x 2340 pixels | 1080 x 2400 pixels Better Resolution |
| RAM | 6 GB | 8 GB More RAM |
| Rear Camera | 50 MP Dual Better Camera Resolution | 64 MP + 12 MP + 12 MP Triple |
| Front Camera | 8 MP | 10 MP Better Front Camera Resolution |
| Weight | 224 g | 169 g Lighter |
| Thickness | 8.6 mm | 7.9 mm Slimmer |
| Battery | 7000 mAh Bigger Battery | 4000 mAh |
| Unique Features | Memory Card Support No No IR Blaster | No Wireless Charging Reverse Charging No |
General
| Model | Galaxy S21 | |
| 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 | August 01, 2025 |
Design
| Dimensions | 82.1 x 171.1 x 8.6 mm | 71.2 x 151.7 x 7.9 mm |
| Weight | 224 g | 169 g |
| Bezel less | No | |
| Colors | Midnight Black, Titan Gray, Sandy Purple |
Display
| Type | Color IPS Screen | Color Dynamic AMOLED 2X (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.9 inches, 1080 x 2340 pixels, 144 Hz | 6.2 inches, 1080 x 2400 pixels, 120 Hz |
| Aspect Ratio | 19.5:9 | 20:9 |
| PPI | ~ 374 PPI | ~ 421 PPI |
| Screen to Body Ratio | ~ 83.2% | ~ 87.2% |
| Glass Type | Corning Gorilla Glass Victus | |
| Features | Always-on Display, HDR10+ | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 6 GB | 8 GB |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | No | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0 | Yes, v5.0, A2DP, LE |
| USB | Yes, USB-C | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | |
| IR Blaster | Yes |
Extra
| GPS | Yes | Yes, with A-GPS, GLONASS, BDS, GALILEO |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | |
| Sensors | Accelerometer, Compass | Accelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes | Yes, 1.5 m upto 30 min |
| IP Rating | IP64 | IP68 |
| Dust Resistant | Yes | Yes |
Camera
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) |
| OIS | Yes | |
| Auto Focus | Yes | |
| Features | HDR | Auto-HDR, Panorama |
| Video Recording | 1080p @ 30 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 | 8 MP ƒ/2 (Wide Angle) Punch Hole | 10 MP ƒ/2.2 (Wide Angle) Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
Technical
| OS | Android v15 | Android v11 |
| Chipset | Qualcomm Snapdragon 685 | Samsung Exynos 2100 |
| CPU | 2.8 GHz, Octa Core Processor | 2.9 GHz, Octa Core Processor |
| Core Details | 4x Cortex-A73@2.8 GHz & 4x Cortex-A53@1.9 GHz | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 |
| GPU | Adreno 610 | Mali-G78 MP14 |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W | Yes, 25W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W |
Discuss
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