Sources and limitations

Listed specifications are reference information, not results of TechMyte testing. Rumored details may change, and hardware or supported features can differ by region. Confirm the exact model with its manufacturer before buying.

Battery capacity does not establish tested endurance; megapixel count does not establish camera quality. Use the comparison tool to identify differences, then check the features that matter to your use.

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Technical data sheet

Full Specifications

Network

Technology	GSM / HSPA / LTE
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
Speed	HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/100 Mbps

Launch

Announced	2017, May
Status	Available. Released 2017, May

Body

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

Battery

Type	IPS LCD
Talk time	Up to 36 h (3G)
Stand-by	Up to 432 h (3G)
Music play	Up to 87 h

Display

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

Platform

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

Memory

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

Selfie camera

Single	13 MP, f/2.0, PDAF
Video	1080p@30fps

Sound

Loudspeaker	Yes
3.5mm jack	Yes

Comms

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

Features

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

Misc

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

Main Camera

Features	LED flash, HDR, panorama

Tests

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

Xiaomi Redmi 4 (4X)