Samsung Galaxy S21 5G (8GB RAM + 256GB) vs Xiaomi Redmi 15 5G
Quick Comparison
Samsung Galaxy S21 5G (8GB RAM + 256GB) has better RAM than Xiaomi Redmi 15 5G. In terms of display resolution, Samsung Galaxy S21 5G (8GB RAM + 256GB) has better resolution of 2400 x 1080 than Xiaomi Redmi 15 5G which has resolution of 2340 x 1080. Samsung Galaxy S21 5G (8GB RAM + 256GB) has more internal memory than Xiaomi Redmi 15 5G
| Name | Samsung Galaxy S21 5G (8GB RAM + 256GB) | Xiaomi Redmi 15 5G |
| RAM | 8 GB | 6 GB |
|---|---|---|
| Display | 6.2 in | 6.9 in |
| Internal Memory | 256 GB | 128 GB |
| Battery | 4000 mAh | 7000 mAh |
| Camera | 64 MP + 12 MP + 12 MP Triple | 50 MP Dual |
| Price | Rs. 73999 | Rs. 14999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is January 14, 2021. The cost of Samsung Galaxy S21 5G (8GB RAM + 256GB) is Rs. 73999. The launch Date of the second phone is August 01, 2025. The cost of Xiaomi Redmi 15 5G is Rs. 14999.
Display comparison
Xiaomi Redmi 15 5G has larger screen size of 6.9 inches in comparison to Samsung Galaxy S21 5G (8GB RAM + 256GB)'s 6.2 inch screen. Samsung Galaxy S21 5G (8GB RAM + 256GB) has Screen type where as Xiaomi Redmi 15 5G 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 5G (8GB RAM + 256GB) has 20:9 aspect ratio where as Xiaomi Redmi 15 5G has 20.6:9 aspect ratio.
Memory comparison
Samsung Galaxy S21 5G (8GB RAM + 256GB)'s larger 8 GB RAM is better for playing games and all with respect to Xiaomi Redmi 15 5G's lower 6 GB RAM. Samsung Galaxy S21 5G (8GB RAM + 256GB) has more Internal Memory (256 GB) than Xiaomi Redmi 15 5G (128 GB).
Camera comparison
Xiaomi Redmi 15 5G's 50 MP Dual Rear Camera outshines Samsung Galaxy S21 5G (8GB RAM + 256GB)'s 64 MP + 12 MP + 12 MP Triple Rear Camera in terms of resolution. Samsung Galaxy S21 5G (8GB RAM + 256GB) 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 5G's 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 10 and the second one on 15 version.
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Full Comparison
| Name | Samsung Galaxy S21 5G (8GB RAM + 256GB) | Xiaomi Redmi 15 5G |
| General | ||
| Model | Galaxy S21 5G | 15C 5G |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| 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 | January 14, 2021 | August 01, 2025 |
| In The Box | Mobile Phone * 1, Adapter * 1, USB Type-C cable * 1, SIM Eject Tool * 1, Quick Start Guide, & Warranty Card * 1, Safety Information * 1 | |
| Design | ||
| Dimensions | 71.2 x 151.7 x 7.9 mm | 80.45 x 168.48 x 8.4 mm |
| Weight | 169 g | 217 g |
| Colors | Sandy Purple, Frosted White, Midnight Black | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color IPS Screen (16M Colors) |
| Touch | Yes | Yes, 288 Hz Touch Sampling Rate |
| Size | 6.2 inches, 1080 x 2400 pixels, 120 Hz | 6.9 inches, 1080 x 2340 pixels, 144 Hz |
| Aspect Ratio | 20:9 | 20.6:9 |
| PPI | ~ 421 PPI | ~ 374 PPI |
| Screen to Body Ratio | ~ 87.2% | ~ 83.2% |
| Glass Type | Corning Gorilla Glass Victus | |
| Brightness | 850nits Peak Brightness | |
| Features | Always-on Display, HDR10+ | TÜV Rheinland Circadian Friendly, TÜV Rheinland flicker free, TÜV Rheinland Low Blue light |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 8 GB | 6 GB |
| RAM Type | LPDDR4X | |
| Storage | 256 GB | 128 GB |
| Storage Type | UFS 3.1 | UFS 2.2 |
| Card Slot | Yes, (Hybrid Slot), 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, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.1, A2DP, LE |
| USB | Yes, USB-C v3.2 | Yes, USB-C |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, Glonass, Beidou |
| Fingerprint Sensor | Yes, In Display | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Ambient Light Sensor, Proximity Sensor (Virtual), E Compass, Accelerometer |
| 3.5mm Headphone Jack | No | |
| NFC | Yes | |
| AI Features | Circle to Search, Gemini AI, AI Erase | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP68 | IP64 |
| Dust Resistant | Yes | Yes |
| Extra Features | Hydro Touch | |
| 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/1.75 (Wide Angle) |
| OIS | Yes | |
| Auto Focus | Yes | |
| Features | Auto-HDR, Panorama | AI Sky, AI Erase, Classic Film Filters |
| 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/2.2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v10 | Android v15 |
| Custom UI | HyperOS 2 | |
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 6s Gen3 |
| CPU | 2.9 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55 |
| GPU | Mali-G78 MP14 | Adreno 619 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | Yes |
| Speaker Type | Bottom Firing Loud Speaker | |
| Audio Features | Dolby Certified, 200% Super Volume | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4000 mAh, Li-Po Battery | 7000 mAh, Si-C EV-Grade Technology |
| Fast Charging | Yes, 25W Fast Charging | Yes, 33W |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | Yes, 18W |