| Product |
Xiaomi Mi 4
|
Xiaomi Redmi 2A
|
| Battery |
| Charging |
18W wired, QC2 |
- |
| Stand-by |
Up to 280 h (3G) |
- |
| Type |
Li-Ion 3080 mAh, non-removable |
Li-Ion 2200 mAh, removable |
| Body |
| Build |
Glass front, plastic back, aluminum frame |
- |
| Dimensions |
139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in) |
134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in) |
| SIM |
Micro-SIM |
Dual SIM (Micro-SIM, dual stand-by) |
| Weight |
149 g (5.26 oz) |
132 g (4.66 oz) |
| Comms |
| Bluetooth |
4.0, A2DP |
4.0, A2DP |
| Infrared port |
Yes |
- |
| NFC |
No |
No |
| Positioning |
GPS, GLONASS, BDS |
GPS, GLONASS, BDS |
| Radio |
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, DLNA, hotspot |
Wi-Fi 802.11 b/g/n, hotspot |
| Display |
| Protection |
- |
To be confirmed |
| Resolution |
1080 x 1920 pixels, 16:9 ratio (~441 ppi density) |
720 x 1280 pixels, 16:9 ratio (~312 ppi density) |
| Size |
5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio) |
4.7 inches, 60.9 cm2 (~67.6% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD |
| Features |
| Sensors |
Accelerometer, gyro, proximity, compass, barometer |
Accelerometer, proximity |
| Launch |
| Announced |
2014, July. Released 2014, August |
2015, March. Released 2015, April |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Features |
LED flash, panorama, HDR |
LED flash, HDR |
| Single |
|
|
| Video |
4K@30fps, 1080p@30fps, 720p@120fps, HDR |
Yes |
| Memory |
| Card slot |
No |
microSDHC (dedicated slot) |
| Internal |
16GB 2GB RAM, 64GB 3GB RAM |
8GB 1GB RAM |
|
eMMC 5.0 |
- |
| Misc |
| Colors |
Black, White |
Black, Green, Yellow, Pink |
| Models |
2014215 |
- |
| SAR |
|
- |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 - all versions |
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands |
TD-SCDMA - 4G model |
HSDPA 850 / 1900 / 2100 |
| 4G bands |
38, 39, 40 - 4G model |
3, 7, 38, 39, 40, 41 |
| EDGE |
Yes |
- |
| GPRS |
Yes |
- |
| Speed |
HSPA, LTE, EV-DO Rev.A 3.1 Mbps |
HSPA, LTE |
| Technology |
GSM / CDMA / HSPA / EVDO / LTE |
GSM / HSPA / LTE |
|
CDMA2000 1xEV-DO - Telecom 3G model |
TD-SCDMA |
| Our Tests |
| Audio quality |
Noise -91.6dB / Crosstalk -49.7dB |
- |
| Battery (old) |
Endurance rating 68h |
- |
| Camera |
Photo / Video |
- |
| Display |
Contrast ratio: 929 (nominal), 2.424 (sunlight) |
- |
| Loudspeaker |
Voice 62dB / Noise 62dB / Ring 66dB |
- |
| Platform |
| Chipset |
Qualcomm MSM8974AC Snapdragon 801 (28 nm) |
Leadcore L1860C |
| CPU |
Quad-core 2.5 GHz Krait 400 |
Quad-core 1.5 GHz |
| GPU |
Adreno 330 |
Mali-T628 MP2 |
| OS |
Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10 |
Android 5.0 (Lollipop), MIUI 6 |
| Selfie camera |
| Single |
8 MP, f/1.8 |
2 MP |
| Video |
1080p@30fps |
720p |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
