Samsung Galaxy A21s
Xiaomi Redmi Note 15 4GSamsung Galaxy A21s vs Xiaomi Redmi Note 15 4G
General Info
| Manufacturer | |
| Samsung | Xiaomi |
| Announced | |
| Expected Announcement - May 2020 | December 2025 |
| Status | |
| Rumored | Coming Soon - December 2025 |
| Colors | |
| Black, White, Blue | Black, Forest Green, Glacier Blue, Purple |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
8.9 mm thickness (0.35 in thickness) |
164 x 75.4 x 7.9 mm (6.46 x 2.97 x 0.31 in) |
| Weight | |
| 191 g (6.74 oz) | 183.7 g (6.46.0.25 oz) |
| SIM Type | |
| Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) | Nano-SIM + Nano-SIM |
| 2G Network | |
| GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | |
| HSDPA 850 / 900 / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | |
| LTE | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 66 |
| Messaging | |
| Build Features | |
| - Fingerprint Sensor |
- Fingerprint Sensor (under display, optical) IP64 dust tight and water resistant (water splashes) |
Hardware and OS
| OS | |
| Android 10.0 | Android 15 |
| User Interface | |
| One UI 2.0 | HyperOS 2 |
| Processor | |
| Octa-core 2.0 GHz, Exynos 850 [Similar] | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), Mediatek Helio G100 Ultra (6 nm) [Similar] |
| GPU | |
| - | Mali-G57 MC2 [Similar] |
| RAM | |
| 3 GB [Browse Similar] | 8 GB [Browse Similar] |
| Internal Memory | |
| 64 GB | 512 GB |
| External Memory | |
| microSDXC | microSDXC (uses shared SIM slot) |
Display
Camera
| Rear Camera | |
| 48 MP + 8 MP + 2 MP [Similar] | 108 MP [Similar] |
| Flash | |
| LED Flash | LED Flash |
| Features | |
| 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) Panorama, HDR |
108 MP, f/1.7, 24mm (wide), 1/1.67", 0.64µm, PDAF Auxiliary lens HDR, Panorama |
| Video | |
| 1080p@30fps | 1080p@30/60fps |
| Front Camera | |
|
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
20 MP, f/2.2, (wide), 1/4.0", 0.7µm 1080p@30fps [Similar] |
Multimedia
| 3.5mm Jack | |
 |
|
| Radio | |
| - | No |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
|
|
Connectivity and Data Rate
| GPRS | |
| Yes | Yes |
| Edge | |
| Yes | Yes |
| 3G | |
| HSPA 42.2/5.76 Mbps, LTE-A | HSPA, LTE |
| Bluetooth | |
| 5.0, A2DP, LE | 5.3, A2DP, LE |
| Wi-Fi | |
| Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| USB | |
| Yes | USB Type-C 2.0, OTG |
| GPS | |
| Yes, with A-GPS | GPS, GALILEO, GLONASS, QZSS, BDS |
| Browser | |
| Yes | Yes |
User Memory
| Internal | |
| 64 GB, 3 GB RAM or 32 GB, 3 GB RAM | 512 GB, 8 GB RAM or 256 GB, 8 GB RAM or 128GB 8 GB RAM or 128GB 6 GB RAM |
| Expandable Storage | |
| microSDXC | microSDXC (uses shared SIM slot) |
| USB OTG | |
| Supported | Supported |
Sensors
| Fingerprint | |
|
|
| Proximity Sensor | |
|
|
| Accelerometer Sensor | |
|
|
| Magnetic-field Sensor (Compass) | |
|
|
| Gyroscope Sensor | |
|
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| NFC | |
|
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Battery
| Type | |
| Non-removable Li-Po Battery Battery Charging 10W |
Non-removable Li-ion Battery Fast Battery Charging 33W wired 18W reverse wired |
| Capacity | |
| 5000 mAh | 6000 mAh |
| Stand by | |
| - | - |
| Talk Time | |
| - | - |
