Samsung Galaxy S21 4G vs Xiaomi Redmi 15 4G
Quick Comparison
Samsung Galaxy S21 4G has better RAM than Xiaomi Redmi 15 4G. In terms of display resolution, Samsung Galaxy S21 4G has better resolution of 2400 x 1080 than Xiaomi Redmi 15 4G which has resolution of 2340 x 1080. Both have the same amount of internal memory.
| Name | Samsung Galaxy S21 4G | Xiaomi Redmi 15 4G |
| RAM | 8 GB | 6 GB |
|---|---|---|
| Display | 6.2 in | 6.9 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 4000 mAh | 7000 mAh |
| Camera | 64 MP + 12 MP + 12 MP Triple | 50 MP Dual |
| Price | Rs. 54999 | Rs. 13990 |
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Detailed Comparison
Price And Launch
The cost of Samsung Galaxy S21 4G is Rs. 54999. The launch Date of the second phone is August 01, 2025. The Expected cost of Xiaomi Redmi 15 4G is Rs. 13990.
Display comparison
Xiaomi Redmi 15 4G has larger screen size of 6.9 inches in comparison to Samsung Galaxy S21 4G's 6.2 inch screen. Samsung Galaxy S21 4G has Screen type where as Xiaomi Redmi 15 4G has IPS Screen type. Samsung's phone has display density of 421 PPI & Xiaomi's phone has only 374 PPI display density. In terms of screen to body ratio, Samsung's phone has better screen to body ratio of ~ 87.2% than Xiaomi's phone ~ 83.2%. Samsung Galaxy S21 4G has 20:9 aspect ratio where as Xiaomi Redmi 15 4G has 19.5:9 aspect ratio.
Memory comparison
Samsung Galaxy S21 4G's larger 8 GB RAM is better for playing games and all with respect to Xiaomi Redmi 15 4G's lower 6 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
Xiaomi Redmi 15 4G's 50 MP Dual Rear Camera outshines Samsung Galaxy S21 4G's 64 MP + 12 MP + 12 MP Triple Rear Camera in terms of resolution. Samsung Galaxy S21 4G will be better choice if you're looking to click lot of selfies as it has better 10 MP Front Camera in comparison to Xiaomi Redmi 15 4G's 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 11 and the second one on 15 version.
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Full Comparison
| Name | Samsung Galaxy S21 4G | Xiaomi Redmi 15 4G |
| 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 | 71.2 x 151.7 x 7.9 mm | 82.1 x 171.1 x 8.6 mm |
| Weight | 169 g | 224 g |
| Bezel less | No | |
| Colors | Midnight Black, Titan Gray, Sandy Purple | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color IPS Screen |
| Touch | Yes | Yes |
| Size | 6.2 inches, 1080 x 2400 pixels, 120 Hz | 6.9 inches, 1080 x 2340 pixels, 144 Hz |
| Aspect Ratio | 20:9 | 19.5:9 |
| PPI | ~ 421 PPI | ~ 374 PPI |
| Screen to Body Ratio | ~ 87.2% | ~ 83.2% |
| Glass Type | Corning Gorilla Glass Victus | |
| Features | Always-on Display, HDR10+ | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 8 GB | 6 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, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.0 |
| USB | Yes, USB-C v3.2 | Yes, USB-C |
| USB Features | USB on-the-go, USB Charging | |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Accelerometer, Compass |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes |
| IP Rating | IP68 | IP64 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) |
| OIS | Yes | |
| Auto Focus | Yes | |
| Features | Auto-HDR, Panorama | HDR |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 10 MP ƒ/2.2 (Wide Angle) Punch Hole | 8 MP ƒ/2 (Wide Angle) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v11 | Android v15 |
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 685 |
| CPU | 2.9 GHz, Octa Core Processor | 2.8 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 4x Cortex-A73@2.8 GHz & 4x Cortex-A53@1.9 GHz |
| GPU | Mali-G78 MP14 | Adreno 610 |
| 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 | 4000 mAh, Li-Po Battery | 7000 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 33W |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | |