| Product |
Xiaomi Redmi 2
|
Xiaomi Redmi 4A
|
| Battery |
| Charging |
10W wired, QC1 |
- |
| Type |
Li-Po 2200 mAh, removable |
Li-Ion 3120 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass 2), plastic back, plastic frame |
Glass front, plastic back, plastic frame |
| Dimensions |
134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in) |
139.9 x 70.4 x 8.5 mm (5.51 x 2.77 x 0.33 in) |
| SIM |
Dual SIM (Micro-SIM, dual stand-by) |
Nano-SIM + Micro-SIM |
| Weight |
133 g (4.69 oz) |
131.5 g (4.66 oz) |
| Comms |
| Bluetooth |
4.0, A2DP, LE |
4.1, 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 b/g/n, Wi-Fi Direct, hotspot |
Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Display |
| Protection |
Corning Gorilla Glass 2 |
- |
| Resolution |
720 x 1280 pixels, 16:9 ratio (~312 ppi density) |
720 x 1280 pixels, 16:9 ratio (~296 ppi density) |
| Size |
4.7 inches, 60.9 cm2 (~67.6% screen-to-body ratio) |
5.0 inches, 68.0 cm2 (~69.0% screen-to-body ratio) |
| Type |
IPS LCD |
IPS LCD |
| Features |
| Sensors |
Accelerometer, gyro, proximity, compass |
Accelerometer, gyro, proximity |
| Launch |
| Announced |
2015, January. Released 2015, January |
2016, November. Released 2016, November |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Features |
LED flash, HDR |
LED flash, HDR, panorama |
| Single |
8 MP, f/2.2, 28mm (wide), 1/3.2", 1.4µm, AF |
13 MP, f/2.2, AF |
| Video |
1080p@30fps |
1080p@30fps |
| Memory |
| Card slot |
microSDHC (dedicated slot) |
microSDXC (uses shared SIM slot) |
| Internal |
8GB 1GB RAM, 16GB 2GB RAM |
16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM |
| |
eMMC 4.5 |
eMMC 5.1 |
| Misc |
| Colors |
Black, White, Yellow, Pink, Green |
Gold, Rose Gold, Dark Gray |
| Models |
2014817, 2014818, 2014816, HM2014821 |
2016117 |
| SAR |
0.70 W/kg (head) 0.70 W/kg (body) |
0.53 W/kg (head) 1.18 W/kg (body) |
| Network |
| 2G bands |
GSM 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, 4, 5, 7, 20, 38, 40 |
| Speed |
HSPA, LTE Cat4 150/50 Mbps |
HSPA, LTE |
| Technology |
GSM / HSPA / LTE |
GSM / HSPA / LTE |
| |
TD-SCDMA |
- |
| Our Tests |
| Audio quality |
Noise -94.8dB / Crosstalk -95.8dB |
- |
| Battery (old) |
Endurance rating 55h |
- |
| Camera |
Photo / Video |
Photo / Video |
| Display |
Contrast ratio: 974:1 (nominal), 1.763 (sunlight) |
- |
| Loudspeaker |
Voice 70dB / Noise 70dB / Ring 77dB |
- |
| Performance |
Basemark OS II 2.0: 511 |
GeekBench: 1781 (v4.4) |
| Platform |
| Chipset |
Qualcomm MSM8916 Snapdragon 410 (28 nm) |
Qualcomm MSM8917 Snapdragon 425 (28 nm) |
| CPU |
Quad-core 1.2 GHz Cortex-A53 |
Quad-core 1.4 GHz Cortex-A53 |
| GPU |
Adreno 306 |
Adreno 308 |
| OS |
Android 4.4.4 (KitKat), MIUI 6.0 |
Android 6.0.1 (Marshmallow), MIUI 10 |
| Selfie camera |
| Single |
2 MP |
5 MP, f/2.2 |
| Video |
720p |
|
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
