Redmi 4 (4X)

Xiaomi Redmi 4 (4X)

Xiaomi

Snapdragon 435

16GB/32GB/64GB storage, microSDXC

2-4GB RAM

13MP

5.0" 720x1280 pixels

Android 6.0.1, up to 7.1.2, MIUI 11

4100mAh

Xiaomi Redmi 4 (4X) Android smartphone. Announced May 2017. Features 5.0″ display, Snapdragon 435 chipset, 13 MP primary camera, 5 MP front camera, 4100 mAh battery, 64 GB storage, 4 GB RAM, Corning Gorilla Glass (unspecified version).

Network

Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/100 Mbps
2G Bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Bands HSDPA 850 / 900 / 1900 / 2100
4G Bands 1, 3, 5, 7, 8, 38, 39, 40, 41
Technology GSM / HSPA / LTE

Launch

Status Discontinued
Announced 2017, May. Released 2017, May

Body

SIM Nano-SIM + Micro-SIM
Build Glass front (Gorilla Glass), aluminum back, aluminum frame, plastic ends
Weight 150 g (5.29 oz)
Dimensions 139.2 x 70 x 8.7 mm (5.48 x 2.76 x 0.34 in)

Display

Size 5.0 inches, 68.9 cm2 (~70.7% screen-to-body ratio)
Type IPS LCD
Protection Corning Gorilla Glass (unspecified version)
Resolution 720 x 1280 pixels, 16:9 ratio (~294 ppi density)

Platform

Operating System Android 6.0.1 (Marshmallow), upgradable to 7.1.2 (Nougat), MIUI 11
CPU Octa-core 1.4 GHz Cortex-A53
GPU Adreno 505
Chipset Qualcomm MSM8940 Snapdragon 435 (28 nm)

Memory

Internal Storage 16GB 2GB RAM, 16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
Card Slot microSDXC (uses shared SIM slot)

Main Camera

Video 1080p@30fps
Single 13 MP, f/2.0, PDAF
Features LED flash, HDR, panorama

Selfie Camera

Video 1080p@30fps
Single 5 MP, f/2.2

Sound

specs.keys.3.5mm jack Yes
Loudspeaker Yes

Communications

NFC No
USB microUSB 2.0
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Radio FM radio
Bluetooth 4.2, A2DP, LE
Positioning GPS, GLONASS, BDS
specs.keys.Infrared port Yes

Features

Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

Battery

Type Li-Po 4100 mAh, non-removable
specs.keys.Stand-by Up to 432 h (3G)
specs.keys.Talk time Up to 36 h (3G)
specs.keys.Music play Up to 87 h

Miscellaneous

SAR 0.77 W/kg (head)     0.83 W/kg (body)
Price About 110 EUR
Colors Black, Gold
Models 2016060, 2016090, MAG138, MAE136, Redmi 4, Redmi 4X

Tests

Camera Photo / Video
Display Contrast ratio: 915 (nominal), 2.920 (sunlight)
Loudspeaker Voice 64dB / Noise 70dB / Ring 72dB
Performance GeekBench: 1819 (v4.4) GFXBench: 5.1fps (ES 3.1 onscreen)
Audio Quality Noise -94.3dB / Crosstalk -94dB
specs.keys.Battery (old) Endurance rating 80h