| Product |
Xiaomi Redmi 1S
|
Samsung Galaxy A21
|
| Battery |
| Charging |
- |
15W wired |
| Type |
Li-Ion 2000 mAh, removable |
Li-Po 4000 mAh |
| Body |
| Build |
Glass front (Asahi Dragontrail), plastic back, plastic frame |
Glass front, plastic back, plastic frame |
| Dimensions |
137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in) |
167.8 x 76.7 x 8.1 mm (6.61 x 3.02 x 0.32 in) |
| SIM |
Dual SIM (Mini-SIM, dual stand-by) |
Nano-SIMNano-SIM + Nano-SIM |
| Weight |
158 g (5.57 oz) |
193 g (6.81 oz) |
| Comms |
| Bluetooth |
4.0, A2DP, LE |
5.0, A2DP, LE |
| NFC |
No |
Yes (market/region dependent) |
| Positioning |
GPS, GLONASS |
GPS, GLONASS, BDS |
| Radio |
FM radio |
FM radio |
| USB |
microUSB 2.0, OTG |
USB Type-C 2.0 |
| WLAN |
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 |
| Display |
| Protection |
Asahi Dragontrail Glass |
- |
| Resolution |
720 x 1280 pixels, 16:9 ratio (~312 ppi density) |
720 x 1600 pixels, 20:9 ratio (~270 ppi density) |
| Size |
4.7 inches, 60.9 cm2 (~64.4% screen-to-body ratio) |
6.5 inches, 102.0 cm2 (~79.3% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD |
| Features |
| Sensors |
Accelerometer, gyro, proximity, compass |
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2014, May. Released 2014, May |
2020, April 08 |
| Status |
Discontinued |
Available. Released 2020, June 26 |
| Main Camera |
| Features |
LED flash, HDR |
LED flash, panorama, HDR |
| Quad |
- |
16 MP, f/1.8, (wide), 1/3.06", 1.0µm, PDAF
8 MP, f/2.2, (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth) |
| Single |
8 MP, f/2.2, 1/3.2", 1.4µm, AF |
- |
| Video |
1080p@30fps |
1080p@30fps |
| Memory |
| Card slot |
microSDXC (dedicated slot) |
microSDXC (dedicated slot) |
| Internal |
8GB 1GB RAM |
32GB 3GB RAM |
| |
eMMC 4.5 |
eMMC 5.1 |
| Misc |
| Colors |
Black, Chinese Red, Metallic Gray/ blue, green, yellow panels |
Black |
| Models |
2014011 |
SM-A215U, SM-A215U1, SM-S215DL, SM-A215W |
| SAR |
- |
1.27 W/kg (head) 0.60 W/kg (body) |
| Network |
| 2G bands |
GSM 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA |
| 4G bands |
- |
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - USA |
| Speed |
HSPA |
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Technology |
GSM / HSPA |
GSM / CDMA / HSPA / EVDO / LTE |
| |
- |
CDMA2000 1xEV-DO |
| Our Tests |
| Audio quality |
Noise -95.4dB / Crosstalk -82.3dB |
- |
| Battery (old) |
Endurance rating 51h |
- |
| Camera |
Photo / Video |
- |
| Display |
Contrast ratio: 1370 (nominal), 1.350 (sunlight) |
- |
| Loudspeaker |
Voice 66dB / Noise 65dB / Ring 71dB |
- |
| Performance |
Basemark OS II 2.0: 454 |
- |
| Platform |
| Chipset |
Qualcomm MSM8228 Snapdragon 400 (28 nm) |
Mediatek MT6765 Helio P35 (12 nm) |
| CPU |
Quad-core 1.6 GHz Cortex-A7 |
Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) |
| GPU |
Adreno 305 |
PowerVR GE8320 |
| OS |
Android 4.3 (Jelly Bean), upgradable to 4.4.4 (KitKat), MIUI 9.2 |
Android 10, One UI 2.0 |
| Selfie camera |
| Single |
1.6 MP |
13 MP, f/2.0, (wide), 1/3.1", 1.12µm |
| Video |
720p@30fps |
1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
