| Product |
Xiaomi Mi 4i
|
Xiaomi Redmi S2 (Redmi Y2)
|
| Battery |
| Charging |
10W wired, QC1 |
10W wired |
| Talk time |
Up to 35 h (3G) |
- |
| Type |
Li-Ion 3120 mAh, non-removable |
Li-Po 3080 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass), plastic back, plastic frame |
Glass front, plastic back, plastic frame |
| Dimensions |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in) |
| SIM |
Dual SIM (Micro-SIM, dual stand-by) |
Nano-SIM + Nano-SIM |
| Weight |
130 g (4.59 oz) |
170 g (6.00 oz) |
| Comms |
| Bluetooth |
4.1, A2DP |
4.2, A2DP, LE |
| Infrared port |
- |
Yes |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
|
| Radio |
Stereo FM radio |
FM radio |
| USB |
microUSB 2.0, OTG |
microUSB 2.0 |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Display |
| Protection |
Corning scratch-resistant glass |
- |
| Resolution |
1080 x 1920 pixels, 16:9 ratio (~441 ppi density) |
720 x 1440 pixels, 18:9 ratio (~269 ppi density) |
| Size |
5.0 inches, 68.9 cm2 (~71.7% screen-to-body ratio) |
5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD |
| Features |
| Sensors |
Accelerometer, gyro, proximity, compass |
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2015, April. Released 2015, April |
2018, May. Released 2018, May |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Dual |
- |
12 MP, f/2.2, 1.25μm, PDAF
5 MP, f/2.4, (depth) |
| Features |
Dual-LED dual-tone flash, panorama, HDR |
LED flash, panorama, HDR |
| Single |
13 MP, f/2.0, AF |
- |
| Video |
1080p@30fps, 480p@120fps |
1080p@30fps (gyro-EIS) |
| Memory |
| Card slot |
No |
microSDXC (dedicated slot) |
| Internal |
16GB 2GB RAM, 32GB 2GB RAM |
32GB 3GB RAM, 64GB 4GB RAM |
| |
eMMC 4.5 |
eMMC 5.1 |
| Misc |
| Colors |
Dark Gray, Black, White, Yellow, Blue, Pink |
Gray, Gold, Rose Gold, Mesmerising Blue, Stunning Black |
| Models |
2015015 |
M1803E6G, M1803E6H, M1803E6I |
| SAR |
0.51 W/kg (head) 0.60 W/kg (body) |
0.43 W/kg (head) 1.58 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
3, 7, 38, 39, 40, 41 |
1, 3, 4, 5, 7, 8, 20, 38, 40 - Global |
| Speed |
HSPA, LTE Cat4 150/50 Mbps |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
| Technology |
GSM / HSPA / LTE |
GSM / CDMA / HSPA / LTE |
| |
TD-SCDMA |
1, 3, 5, 7, 8, 34, 38, 39, 40, 41 - China |
| Our Tests |
| Audio quality |
- |
Noise -90.3dB / Crosstalk -93.1dB |
| Battery (old) |
Endurance rating 67h |
Endurance rating 92h |
| Camera |
Photo / Video |
Photo / Video |
| Display |
Contrast ratio: 1055:1 (nominal), 2.641 (sunlight) |
Contrast ratio: 1072:1 (nominal), 3.077 (sunlight) |
| Loudspeaker |
Voice 63dB / Noise 65dB / Ring 68dB |
Voice 68dB / Noise 69dB / Ring 82dB |
| Performance |
Basemark X: 4875 |
AnTuTu: 77488 (v7)
GeekBench: 4313 (v4.4)
GFXBench: 7.4fps (ES 3.1 onscreen) |
| Platform |
| Chipset |
Qualcomm MSM8939 Snapdragon 615 (28 nm) |
Qualcomm MSM8953 Snapdragon 625 (14 nm) |
| CPU |
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) |
Octa-core 2.0 GHz Cortex-A53 |
| GPU |
Adreno 405 |
Adreno 506 |
| OS |
Android 5.0.2 (Lollipop), MIUI 8.2 |
Android 8.1 (Oreo), upgradable to Android 9, MIUI 12 |
| Selfie camera |
| Features |
- |
HDR, LED flash |
| Single |
5 MP, f/1.8 |
16 MP, f/2.5, (wide), 1/3.06" 1.0µm |
| Video |
|
1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
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