Xiaomi Mi 4

Xiaomi Mi 4
	IR filter,; dual warm/cool LED flashes,; aperture f/1.8,; facial recognition,; image stabilization; burst mode
Front camera	8 MP, HD video (1080p)
Data inputs	Multi-touch touchscreen display,; microphone,; gyroscope,; accelerometer,; digital compass,; proximity sensor,; ambient light sensor
SAR	1.36 W/kg (head)
Website	www.mi.com/en/mi4

The Xiaomi Mi 4 (

high-end phone, and its complementary smart-accessory, the Xiaomi MiBand

, during the Xiaomi New Product Launch Event 2014 on 22 July 2014.

Similar to the principle of the

Xiaomi Mi3. The phone is of a different design to its predecessor. It was also released slightly before the new MIUI

6, which was introduced in August 2014.

Reception towards the

iPhone 5S.^[2]

History

Before its official unveiling, media speculation primarily focused on leaks; including photos of the early prototypes of the device and screenshots of MIUI 6, these leaks were later proven to be fake.

CNCC on 22 July 2014. While the device was announced in July 2014, it didn't become available until August 2014, shortly before unveiling MIUI

6.

In August 2014, the Mi 4 was released in China and then to other countries. Xiaomi operated in a limited, however expanding, list of countries and consumers outside of the countries it operates in have to buy it online.

Features

Operating system and software

The Xiaomi Mi 4 ships with

accelerometers

are used by some applications to respond to the movement of the device such as rotating it vertically (one common result is switching from portrait to landscape mode). The device includes an updater application that allows it to update its OS to the latest version of MIUI available to it.

Windows 10 Mobile ROM Port

In March 2015, it was announced that selected

registered users of Mi 4 devices in China would receive a ROM port of the Windows 10 Mobile operating system as a trial partnership between Xiaomi and Microsoft.^[3] The ROM flash download was released for these users in June 2015, who could then test the software on their devices and provide feedback to both Microsoft and Xiaomi.^[4]

Design

The device has a 5-inch (12.7 cm) Sharp/JDI OGS fully laminated touchscreen, with a screen resolution of 1080x1920 at a pixel density of 441 ppi. Its home button is similar to its predecessor and is mainly touch-based with adjustable haptic feedback. The phone itself weighs 149 grams (5.26 oz) and uses a stainless steel frame. The device is currently available in three color finishes, black, white and rose gold.

Hardware

The Xiaomi Mi 4 is powered by a Qualcomm Snapdragon 801 (MSM8974-AC) chipset, which, at one point made it the fastest Android smartphone to date according to the AnTuTu benchmark application. Its processor is a quad-core 2.5 GHz Krait 400 and its graphics card is an Adreno 330. The phone includes a 3080 mAh battery, which provides 280 hours of standby time. It comes with a 13 megapixel primary camera and an 8 megapixel secondary camera. Xiaomi also released another model of Mi 4 with 64 GB of internal memory.^[5]

Accessories

The Xiaomi Mi 4 was announced with a complementary US$12 smart accessory known as the Xiaomi Mi Band which is a waterproof sleep-cycle smart alarm, fitness monitor, sleep tracker and remote smartphone unlocker. It comes in various exchangeable bands and has a 30-day battery capacity.

Compatibility with CyanogenMod and dual-boot

The phone is compatible with CM13, CM14.1 and supports true dual-boot.^[6]^[7]

References

^ "Xiaomi Mi 4 - Full phone specifications".
^ "Xiaomi Mi 4 Review". Triple Tremelo. Retrieved 30 August 2015.^{[permanent dead link]}
^ Bright, Peter (18 Mar 2015). "Xiaomi and Microsoft to offer Windows 10 conversion for Android phones". Ars Technica. Condé Nast. Retrieved 23 June 2015.
^ Singh, Manish (2 Jun 2015). "Microsoft releases Windows 10 ROM dev preview for Android flagship Mi 4 test users". BetaNews. BetaNews, Inc. Retrieved 23 June 2015.
^ "Xiaomi Mi 4 On Sale In India, 64GB Variant Will Be Available On February 24". Android News. Retrieved 20 February 2015.
^ "True Dual Boot for Xiaomi MI4 - India - Xiaomi MIUI Official Forum". en.miui.com. Retrieved 2015-12-05.
^ "CyanogenMod Downloads". download.cyanogenmod.org. Archived from the original on 2015-08-05. Retrieved 2015-12-05.

[1] "Xiaomi Mi 4 - Full phone specifications".

[2] "Xiaomi Mi 4 Review". Triple Tremelo. Retrieved 30 August 2015.^{[permanent dead link]}

[W10onMi4-3] Bright, Peter (18 Mar 2015). "Xiaomi and Microsoft to offer Windows 10 conversion for Android phones". Ars Technica. Condé Nast. Retrieved 23 June 2015.

[W10release-4] Singh, Manish (2 Jun 2015). "Microsoft releases Windows 10 ROM dev preview for Android flagship Mi 4 test users". BetaNews. BetaNews, Inc. Retrieved 23 June 2015.

[Android_News-5] "Xiaomi Mi 4 On Sale In India, 64GB Variant Will Be Available On February 24". Android News. Retrieved 20 February 2015.

[6] "True Dual Boot for Xiaomi MI4 - India - Xiaomi MIUI Official Forum". en.miui.com. Retrieved 2015-12-05.

[7] "CyanogenMod Downloads". download.cyanogenmod.org. Archived from the original on 2015-08-05. Retrieved 2015-12-05.

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