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Xiaomi Redmi: History
Please note this is an old version of this entry, which may differ significantly from the current revision.
Subjects: Engineering, Electrical & Electronic
Redmi is a budget smartphone line manufactured by Xiaomi, that was first announced in July 2013. Redmi phones use the Xiaomi MIUI operating system, a variant of Android. Models can be divided into regular Redmi phones with screens usually up to 5" and Redmi Note series with displays exceeding 5". Only phone besides these two series is Redmi Pro, first introduced in 2016 with Dual Camera system, USB-C and unique for Xiaomi devices OLED display. Redmi A have been marketed in several Asian and European countries.The most significant difference from other Xiaomi smartphones is that it uses less-expensive components and thus is more cost-effective. In August 2014 The Wall Street Journal reported that in the second quarter of the 2014 fiscal year Xiaomi smartphone shipment rankings in China with a market share of 14%. Redmi sales were attributed as a contributing factor toward this gain in shipment rankings.
  • xiaomi
  • redmi
  • smartphone

1. 2013

The Redmi phone release in 2013 was first announced on Xiaomi's website, with consumer sales beginning on July 12, 2013.

2. 2014

On March 13, 2014, Redmi phones were announced to be sold out, in Singapore alone, eight minutes[3] after being purveyed to consumers on Xiaomi's website. Criticism regarding the release of Redmi phones has included the notion that the firm may be exaggerating its sales by releasing them in small batches, causing them to quickly sell out.[4]

On August 4, 2014, The Wall Street Journal reported that in China's smartphone market, Xiaomi overtook Samsung in the second-quarter of the 2014 fiscal year with a 14% market share in smartphone shipment rankings, while Samsung had a 12% market share during this time.[5] Additionally, Yulong and Lenovo both had a 12% market share during this time.[2] Redmi sales were attributed as contributing to Xiaomi's increased shipment rankings in the smartphone market.[2] Conversely, in the first-quarter of 2014, Xiaomi held a 10.7% market share.[2]

3. 2015

The Redmi Note 3 launched on 24 November 2015, unlike its predecessor, does not have a user-changeable battery and microSD slot. It's based on Mediatek Helio X10 Octa-core 2.0 GHz Cortex-A53 SOC with PowerVR G6200 GPU. Snapdragon variant of the phone, released later the same year, is based on Snapdragon 650 and brings back microSD support.

4. 2016

In July 2016, Chinese artists - Liu Shishi, Wu Xiubo and Liu Haoran became the first ambassadors of Xiaomi's Redmi series in China .[6] Redmi Pro has appeared as Pro lineup in Redmi series.

On 25 August 2016, Xiaomi unveiled the Redmi Note 4. The Redmi Note 4 is powered by MediaTek's Helio X20 deca-core processor which is clocked at 2.1 GHz. The device also has 2 GB RAM and offers 16 GB of internal storage. The Redmi Note 4 boasts a 5.5-inch Full-HD display and features a camera combo of 13 MP rear camera and 5 MP front camera. It runs on Android 5.1 Lollipop and packs a 4100 mAh battery.

On November 2016, Xiaomi released its new budget phone, Redmi 4. It has a poly-carbonate body, the dual-SIM support and runs on MIUI 8 based on Android 6.0.1 Marshmallow. The Redmi 4 sports a 5-inch 720x1280 pixels display, powered by a 1.4 GHz quad-core processor and 2GB of RAM.

5. 2017

In January 2017, The Xiaomi Redmi Note 4x based on Qualcomm Snapdragon 625 Chipset became company's first major launch of 2017.[7] It is an upgraded version of the previously released Redmi Note 4 based on the MediaTek Helio X20 chipset. The device is also known as Redmi Note 4 in regions where the original Redmi Note 4 was not released.

In December 2017, Xiaomi unveiled the Redmi 5 and 5 Plus. They are the first phones in the Redmi series which features a 18:9 screen aspect ratio. The Redmi 5 starts from 799 RMB and the Plus version starts from 999 RMB. The EU release was set to January 2018 and prices were set to € 170 and €215 for Redmi 5 and Redmi 5 Plus respectively.

6. List of Devices[8]

Redmi

Model Display type Display size Resolution Release date 4G LTE support System on chip GPU (Integrated with System on chip) RAM Internal Storage Primary camera Front camera Operating System
Initial Current
Redmi 1[9]
 IPS 4.7" HD 720p 2013.7 No Mediatek

MT6589T

4x 1.5 GHz ARM cortex-A7

Imagination Technologies PowerVR SGX544 MP @357Mhz 1 GB LPDDR2 4 GB eMMC 2.0 8 MP Samsung S5K3H2/

OmniVision OV8825

1.3 MP Aptina Mt9m114 MIUI V5

Android 4.2.2

MIUI 9

Android 4.4.2

Redmi 1S[10]
 IPS 4.7" HD 720p 2014.5 No Qualcomm

Snapdragon 400
4x 1.6 GHz ARM cortex-A7

Qualcomm Adreno 305 @400Mhz 1 GB LPDDR3 8 GB eMMC 4.2 8 MP Samsung S5K3H2/

OmniVision OV8865

1.6 MP OmniVision OX1A15 MIUI V5

Android 4.3

MIUI 9

Android 4.4.4

Redmi 1S 4G[11]
 IPS 4.7" HD 720p 2014.5 Yes MediaTek

MT6582

4x 1.3 GHz ARM cortex-A7

ARM Mali-400 MP2 @400Mhz 1 GB

LPDDR3

8 GB

eMMC 4.2

8 MP Samsung S5K3H2/

OmniVision OV8865

1.6 MP OmniVision OX1A15 MIUI V5

Android 4.2.2

MIUI 9

Android 4.4.2

Redmi 2[12]
File:Xiaomi Redmi 2.jpg 		IPS 4.7" HD 720p 2015.1 Yes Qualcomm

Snapdragon 410
4x 1.2 GHz ARM cortex-A53

Qualcomm Adreno 306 @400Mhz 1 GB / 2 GB LPDDR3 8 / 16 GB eMMC 5.0 8 MP Samsung ISOCELL S5K4H8/

OmniVision OV8865

2 MP OmniVision OV2680 MIUI 6

Android 4.4.4

MIUI 9

Android 5.1.1

Redmi 2A[13] IPS 4.7" HD 720p 2015.4 Yes Leadcore

LC1860C
4x 1.5 GHz ARM cortex-A7

ARM Mali-T628 MP2 @450Mhz 1 GB LPDDR3 8 GB eMMC 5.0 8 MP Samsung ISOCELL S5K4H8/

OmniVision OV8865

2 MP OmniVision OV2680 MIUI 6

Android 4.4.4

MIUI 9

Android 5.1.1

Redmi 3[14]
 IPS 5" HD 720p 2015.12 Yes Qualcomm

Snapdragon 616
4x 1.5 GHz ARM cortex-A53 & 4x 1.2 GHz ARM cortex-A53

Qualcomm Adreno 405 @450Mhz 2 GB / 3 GB LPDDR3 16 / 32 GB eMMC 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI 7

Android 5.1.1

MIUI 9

Android 5.1.1

Redmi 3S[15] IPS 5" HD 720p 2016.4 Yes Qualcomm

Snapdragon 430
8x 1.4 GHz ARM cortex-A53

Qualcomm Adreno 505 @450Mhz 2 GB / 3 GB LPDDR3 16 / 32 GB eMMC 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI 7

Android 6.0.1

MIUI 10

Android 6.0.1

Redmi 3X[16] IPS 5" HD 720p 2016.4 Yes Qualcomm

Snapdragon 430
8x 1.4 GHz ARM cortex-A53

Qualcomm Adreno 505 @450Mhz 2 GB / 3 GB LPDDR3 16 / 32 GB eMMC 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI 7

Android 6.0.1

MIUI 10

Android 6.0.1

Redmi Pro[17] OLED 5.5" FHD 1080p 2016.7 Yes Mediatek

Helio X20 / X25

4x 2.1 GHz ARM cortex-A53 & 4x 2.3 GHz ARM cortex-A53 & 2x 2.5 GHz ARM cortex-A72

ARM Mali-T880 MP4 @700Mhz 3 GB / 4 GB

LPDDR3

32 / 64 / 128 GB

eMMC

Dual 13 MP/5 MP

Sony Exmor RS IMX258/Samsung S5K5E8

5 MP

Samsung S5K5E8

MIUI 8

Android 6.0

MIUI 10

Android 6.0

Redmi 4[18] IPS 5" HD 720p 2016.11 Yes Qualcomm

Snapdragon 430
8x 1.4 GHz ARM cortex-A53

Qualcomm Adreno 505 @450Mhz 2 GB LPDDR3 16 / 32 GB eMMC 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI 8

Android 6.0.1

MIUI 10

Android 6.0.1

Redmi 4A[19] IPS 5" HD 720p 2016.11 Yes Qualcomm

Snapdragon 425
4x 1.4 GHz ARM cortex-A53

Qualcomm Adreno 308 @400Mhz 2 / 3 GB LPDDR3 16 / 32 GB eMMC 5.1 13 MP OmniVision OV13850 5 MP OmniVision OV5675 MIUI 8

Android 6.0.1

MIUI 10

Android 7.1.2

Redmi 4 Prime IPS 5" FHD 1080p 2016.11 Yes Qualcomm

Snapdragon 625
8x 2.0 GHz ARM cortex-A53

Qualcomm Adreno 506 @650Mhz 3 GB LPDDR3 32 GB eMMC 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI 8

Android 6.0.1

MIUI 10

Android 6.0.1

Redmi 4X[20]Redmi 4X.jpg IPS 5" HD 720p 2017.3 Yes Qualcomm

Snapdragon 435
8x 1.4 GHz ARM cortex-A53

Qualcomm Adreno 505 @500Mhz 2 / 3 / 4 GB LPDDR3 16 / 32 / 64 GB eMMC 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI 8

Android 6.0.1

MIUI 10

Android 7.1.2

Redmi 5A[21] IPS 5" HD 720p 2017.10 Yes Qualcomm

Snapdragon 425

4x 1.4 GHz ARM cortex-A53

Qualcomm Adreno 308 @400Mhz 2 / 3 GB

LPDDR3

16 / 32 GB

eMMC 5.1

13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP OmniVision OV5675 MIUI 9

Android 7.1.2

MIUI 10

Android 7.1.2

Redmi 5[22] IPS 5.7" HD+ 1440 × 720 2017.12 Yes Qualcomm

Snapdragon 450

8x 1.8 GHz ARM cortex-A53

Qualcomm Adreno 506 @600Mhz 2 / 3 GB

LPDDR3

16 / 32 GB

eMMC 5.1

12 MP OmniVision OV12A10/Sony Exmor RS IMX486 5 MP OmniVision OV5675 MIUI 9

Android 7.1.2

MIUI 10

Android 8.1.0

Redmi 5 Plus[23]
India: Redmi Note 5 		IPS 5.99" FHD+ 2160 × 1080 2017.12 Yes Qualcomm

Snapdragon 625

8x 2.0 GHz ARM cortex-A53

Qualcomm Adreno 506 @650Mhz 3 / 4 GB

LPDDR3

32 / 64 GB

eMMC 5.1

12 MP OmniVision OV12A10/Sony Exmor RS IMX486 5 MP OmniVision OV5675 MIUI 9

Android 7.1.2

MIUI 10

Android 8.1.0

Redmi S2[24]
India: Redmi Y2 		IPS 5.99" HD+ 1440 × 720 2018.5 Yes Qualcomm

Snapdragon 625

8x 2.0 GHz ARM cortex-A53

Qualcomm Adreno 506 @650Mhz 3 / 4 GB

LPDDR3

32 / 64 GB

eMMC 5.1

12 MP Sony Exmor RS IMX486+5 MP Samsung S5K5E8 16 MP

Samsung S5K3P8

MIUI 10

Android 8.1

MIUI 10

Android 8.1.0

Redmi 6[25] IPS 5.45" HD+ 1440 × 720 2018.6 Yes Mediatek

Helio P22

8x 2.0 GHz ARM cortex-A53

Imagination Technologies PowerVR GE8320 @500Mhz 3 / 4 GB

LPDDR4X

32 / 64 GB

eMMC 5.1

12 MP Sony Exmor RS IMX486+5 MP Samsung S5K5E8 5 MP Samsung S5K5E8 MIUI 10

Android 8.1

MIUI 10

Android 8.1.0

Redmi 6A[26] IPS 5.45" HD+ 1440 × 720 2018.6 Yes Mediatek

Helio A22

4x 2.0 GHz ARM cortex-A53

Imagination Technologies PowerVR GE8100 @450Mhz 2 GB

LPDDR4X

16 GB

eMMC 5.1

13 MP Samsung ISOCELL S5K3L8/OmniVision OV13855 5 MP Samsung S5K5E8 MIUI 10

Android 8.1

MIUI 10

Android 8.1.0

Redmi 6 Pro[27] IPS 5.84" FHD+ 2280 x 1080 2018.6 Yes Qualcomm

Snapdragon 625

8x 2.0 GHz ARM cortex-A53

Qualcomm Adreno 506 @650Mhz 3 / 4 GB

LPDDR3

32 / 64 GB

eMMC 5.1

12 MP Sony Exmor RS IMX486+5 MP Samsung S5K5E8 5 MP Samsung S5K5E8 MIUI 10

Android 8.1

MIUI 10

Android 8.1.0

Redmi Note

Model Display type Display size Resolution Release date 4G LTE support System on chip RAM Internal

Storage

Primary camera Front camera Operating system
Redmi Note 3G[28]
 IPS 5.5" HD 720p 2014.4 No Mediatek

MT6592

8x 1.4 GHz or 1.7 GHz

1 GB / 2 GB LPDDR2 8 GB eMMC 4.2 13 MP OmniVision OV13850 5 MP OmniVision OV5642 MIUI v9

Android 4.4

Redmi Note 4G[29]
 IPS 5.5" HD 720p 2014.6 Yes Qualcomm

Snapdragon 400

4x 1.6 GHz

2 GB LPDDR3 8 GB emmc 4.2 13 MP Sony Exmor RS IMX135/

OmniVision OV13850

5 MP OmniVision OV5642 MIUI v9

Android 4.4

Redmi Note Prime[30]
 IPS 5.5" HD 720p 2015.12 Yes

Qualcomm

Snapdragon 410

4x 1.2 GHz

2 GB LPDDR3 8 GB emmc 5.0 13 MP Samsung S5K3L2 5 MP OmniVision OV5642 MIUI v9

Android 4.4

Redmi Note 2[31]
Xiaomi Redmi Note 2		 IPS 5.5" FHD 1080p 2015.7 Yes Mediatek

Helio X10

8x 2 GHz or 2.2 GHz

2 GB LPDDR3 16 / 32 GB emmc 5.0 13 MP Samsung ISOCELL S5K3M2 5 MP OmniVision OV5670 MIUI v9

Android 5.0

Redmi Note 3

henessy[32]
Xiaomi Redmi Note 3.jpg

IPS 5.5" FHD 1080p 2015.11 Yes Mediatek
Helio X10
8x 2 GHz or 2.2 GHz 		2 GB / 3 GB LPDDR3 16 / 32 GB emmc 5.0 13 MP Samsung ISOCELL S5K3M2/

OmniVision OV13853

5 MP OmniVision OV5670 MIUI v9

Android 5.0

Redmi Note 3

kenzo[33]

IPS 5.5" FHD 1080p 2016.2 Yes Qualcomm

Snapdragon 650

4x 1.4 GHz &

2x 1.8 GHz

2 GB / 3 GB LPDDR3 16 / 32 GB emmc 5.1 16 MP Samsung ISOCELL S5K3P3/

OmniVision OV16880

5 MP OmniVision OV5670 MIUI v9

Android 6.0

Redmi Note 3 Special Edition

kate[34]

IPS 5.5" FHD 1080p 2016.6 Yes Qualcomm

Snapdragon 650

4x 1.4 GHz &

2x 1.8 GHz

2 GB / 3 GB LPDDR3 16 / 32 GB emmc 5.1 16 MP 5 MP MIUI v9

Android 6.0

Redmi Note 4[35]
Xiaomi Redmi Note 4 Front.jpg 		IPS 5.5" FHD 1080p 2016.6 Yes Mediatek

Helio X20

2x 2.3 GHz &

4x 2 GHz & 4x 1.4 GHz

3 GB / 4 GB LPDDR3 32 / 64 GB emmc 5.1 13 MP Samsung ISOCELL S5K3L8/

OmniVision OV13853

5 MP Samsung S5K5E8 MIUI v9

Android 6.0

Redmi Note 4X[36] IPS 5.5" FHD 1080p 2017.1 Yes Qualcomm

Snapdragon 625

8x 2 GHz

2 GB / 3 GB / 4 GB LPDDR3 16 / 32 / 64 GB emmc 5.1 13 MP Sony Exmor RS IMX258/

Samsung ISOCELL S5K3L8

5 MP Samsung S5K5E8 MIUI v9

Android 7.0

Redmi Note 5A[37]
India: Redmi Y1 lite[38] 		IPS 5.5" HD 720p 2017.8 Yes Qualcomm

Snapdragon 425

4x 1.4 GHz

2 GB LPDDR3 16 GB emmc 5.1 13 MP 5 MP MIUI v9

Android 7.1

Redmi Note 5A Prime[39]
India: Redmi Y1[40]
Redmi Y1 		IPS 5.5" HD 720p 2017.8 Yes Qualcomm

Snapdragon 435

8x 2 GHz

3 GB / 4 GB LPDDR3 32 / 64 GB emmc 5.1 13 MP 16 MP MIUI v9

Android 7.1

Redmi Note 5[41]
India: Redmi Note 5 Pro 		IPS 5.99" FHD+ 2160 × 1080 2018.2 Yes Qualcomm

Snapdragon 636

4x 1.8Ghz Kryo 260 Gold

4x 1.6Ghz Kryo 260 Silver

3 / 4 / 6 GB 32 / 64 GB 5 MP + 12 MP 13 MP
20 MP in India 		MIUI v10

Android 8.1

Redmi Note 6 Pro IPS 6.26" 2280*1080 2018-10 Yes Qualcomm

Snapdragon 636

4x 1.8Ghz Kryo 260 Gold

4x 1.6Ghz Kryo 260 Silver

3 / 4 / 6 GB 32 / 64 GB 5 MP + 12 MP 2 MP + 20 MP MIUI v10

Android 8.1

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