Redmi (stylized in all caps) is a subsidiary brand owned by the Chinese electronics company Xiaomi.

Redmi phones use Xiaomi's MIUI or HyperOS user interface on top of Android.

The most significant difference from other Xiaomi smartphones is that Redmi uses less expensive components, allowing lower prices while retaining more advanced specifications.

In August 2014, The Wall Street Journal reported that in the second quarter of the 2014 fiscal year, Xiaomi had a smartphone market share of 14% in China;[2] Redmi sales were attributed as a contributing factor toward this ranking.

[3][4] On 13 March 2014, Redmi announced that their phones had been sold out in Singapore alone, eight minutes[5] after being made available to buy on Xiaomi's website.

[2] Redmi sales were attributed as contributing to Xiaomi's increased shipment rankings in the smartphone market.

[2] The Redmi Note 3 launched on 24 November 2015; unlike its predecessor, it does not have a user-changeable battery or microSD slot.

On 25 August, Xiaomi unveiled the Redmi Note 4, powered by MediaTek's Helio X20 deca-core processor clocked at 2.1 GHz.

It has a polycarbonate body, dual-SIM support and runs on MIUI 8 based on Android 6.0.1 Marshmallow.

In January 2017, the Xiaomi Redmi Note 4x based on Qualcomm Snapdragon 625 Chipset became the company's first major launch of 2017.

[9] It is an upgraded version of the previously released Redmi Note 4 based on the MediaTek Helio X20 chipset.

The K30 features a LCD display punchhole camera cutout with 120 Hz refresh rate.

The Redmi Note 9 Pro features a 48 MP quad camera rear setup and 18 W fast charge, while the Redmi Note 9 Pro Max features a 64 MP quad camera rear setup and 33 W fast charge.

In Q2 of 2021, the company overtook Apple as the second-largest smartphone brand globally, and it beat Samsung as the largest phone manufacturer in Europe.

[14] Xiaomi later also released another variant to the series, the Redmi Note 12 Turbo, on March 28, which features the Snapdragon 7+ Gen2 processor.

All five devices came out with MIUI 14 based on Android 13,[15] with an available now upgrade to HyperOS, Xiaomi's UI revamp.

[16] In November 2024, the chinese table tennis player Fan Zhendong became the champion ambassador of the REDMI brand in China.