| Product |
Xiaomi Mi 4i
|
Xiaomi Redmi 4 (4X)
|
| Battery |
| Charging |
10W wired, QC1 |
- |
| Music play |
- |
Up to 87 h |
| Stand-by |
- |
Up to 432 h (3G) |
| Talk time |
Up to 35 h (3G) |
Up to 36 h (3G) |
| Type |
Li-Ion 3120 mAh, non-removable |
Li-Po 4100 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass), plastic back, plastic frame |
Glass front (Gorilla Glass), aluminum back, aluminum frame, plastic ends |
| Dimensions |
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in) |
139.2 x 70 x 8.7 mm (5.48 x 2.76 x 0.34 in) |
| SIM |
Dual SIM (Micro-SIM, dual stand-by) |
Nano-SIM + Micro-SIM |
| Weight |
130 g (4.59 oz) |
150 g (5.29 oz) |
| Comms |
| Bluetooth |
4.1, A2DP |
4.2, A2DP, LE |
| Infrared port |
- |
Yes |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
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 |
Corning Gorilla Glass (unspecified version) |
| Resolution |
1080 x 1920 pixels, 16:9 ratio (~441 ppi density) |
720 x 1280 pixels, 16:9 ratio (~294 ppi density) |
| Size |
5.0 inches, 68.9 cm2 (~71.7% screen-to-body ratio) |
5.0 inches, 68.9 cm2 (~70.7% 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 |
2017, May. Released 2017, May |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Features |
Dual-LED dual-tone flash, panorama, HDR |
LED flash, HDR, panorama |
| Single |
13 MP, f/2.0, AF |
13 MP, f/2.0, PDAF |
| Video |
1080p@30fps, 480p@120fps |
1080p@30fps |
| Memory |
| Card slot |
No |
microSDXC (uses shared SIM slot) |
| Internal |
16GB 2GB RAM, 32GB 2GB RAM |
16GB 2GB RAM, 16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM |
|
eMMC 4.5 |
eMMC 5.1 |
| Misc |
| Colors |
Dark Gray, Black, White, Yellow, Blue, Pink |
Black, Gold |
| Models |
2015015 |
2016060, 2016090, MAG138, MAE136, Redmi 4, Redmi 4X |
| SAR |
|
|
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands |
HSDPA 850 / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
3, 7, 38, 39, 40, 41 |
1, 3, 5, 7, 8, 38, 39, 40, 41 |
| Speed |
HSPA, LTE Cat4 150/50 Mbps |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/100 Mbps |
| Technology |
GSM / HSPA / LTE |
GSM / HSPA / LTE |
|
TD-SCDMA |
- |
| Our Tests |
| Audio quality |
- |
Noise -94.3dB / Crosstalk -94dB |
| Battery (old) |
Endurance rating 67h |
Endurance rating 80h |
| Camera |
Photo / Video |
Photo / Video |
| Display |
Contrast ratio: 1055:1 (nominal), 2.641 (sunlight) |
Contrast ratio: 915 (nominal), 2.920 (sunlight) |
| Loudspeaker |
Voice 63dB / Noise 65dB / Ring 68dB |
Voice 64dB / Noise 70dB / Ring 72dB |
| Performance |
Basemark X: 4875 |
GeekBench: 1819 (v4.4)
GFXBench: 5.1fps (ES 3.1 onscreen) |
| Platform |
| Chipset |
Qualcomm MSM8939 Snapdragon 615 (28 nm) |
Qualcomm MSM8940 Snapdragon 435 (28 nm) |
| CPU |
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) |
Octa-core 1.4 GHz Cortex-A53 |
| GPU |
Adreno 405 |
Adreno 505 |
| OS |
Android 5.0.2 (Lollipop), MIUI 8.2 |
Android 6.0.1 (Marshmallow), upgradable to 7.1.2 (Nougat), MIUI 11 |
| Selfie camera |
| Single |
5 MP, f/1.8 |
5 MP, f/2.2 |
| Video |
|
1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
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