Redmi 1S

The Xiaomi Redmi 1S, code-named armani HM 1S, is a smartphone released in May 2014, developed by the Chinese company Xiaomi Inc. It is a part of the Redmi series of smartphones, and succeeded the Redmi 1. Visually similar to its predecessor, it comes with a 4.7-inch screen, a quad-core 1.6 GHz Cortex-A7 processor and runs Android version 4.3 (Jellybean), bundled with the proprietary MIUI v5 user interface,[1] which can be upgraded to MIUI v9 based on Android 4.4.4 KTU84P.

Xiaomi Redmi 1S
ManufacturerXiaomi
SeriesRedmi
Compatible networksGSM: 900/1800/1900
HSPA: 14.4 Mbps 900/2100
First releasedCN: February 2014 (2014-02)
IN: July 2014 (2014-07)
PredecessorXiaomi Redmi 1
SuccessorXiaomi Redmi 2
TypeSmartphone
Form factorSlate
Dimensions137 mm (5.4 in) H
69 mm (2.7 in) W
9.9 mm (0.39 in) D
Mass158 g (5.6 oz)
Operating systemChina:
MIUI 9 beta and stable
based on Android v4.4.4 Kitkat Global:
MIUI 9 beta and stable based on Android v4.4.4 Kitkat
System-on-chip1.6 GHz Qualcomm Snapdragon 400 MSM8228
CPUQuad Core ARMv7 1.6 GHz
GPUAdreno 305 GPU
Memory1 GB (861 MB usable)
Storage8 GB (5.7 GB usable)
Removable storageSupports up to 64 GB
microSD
Battery2,050 mAh, 7.6 Wh, 3.896 V, internal rechargeable Li-Poly, user-replaceable, Battery Scale:100
Display4.70 in (119 mm) IPS LCD with AGC Dragontrail Glass
1280×720 px (312 ppi)
Rear camera8 Megapixel auto-focus with LED flash
ConnectivityGPS / GLONASS, Wi-Fi 802.11 b/g/n, Bluetooth 4.0, Micro-USB
Data inputsMulti-touch capacitive touchscreen;
Accelerometer;
A-GPS;
Digital compass;
Proximity sensor;
Push buttons;
capacitive touch-sensitive buttons

Noted for its low price (₹5,999 (US$75) in India), the Redmi 1S was an extremely popular and a demanded smartphone. Xiaomi opted to sell the smartphone online in order to comply with their minimal capital input.[2] Flipkart was the exclusive retailer of Redmi 1S in India. The company discontinued the smartphone's sale in India in favor of the successors Redmi 2 and Redmi Note.

Features

Software

The Redmi 1S offers Android 4.3 Jellybean, with proprietary MIUI v5 custom graphical user interface pre-installed by the manufacturer, and can be upgraded to Android 4.4.4 (Kitkat) with MIUI v9 via OTA. The Redmi 1S comes with a factory-unlocked bootloader, allowing users from the outset to further develop the OS and "root" the device, or gain legitimate privileged control in Android's subsystem. Software-development community XDA-Developers was among the first to release a custom rom and kernel for the phone, and since then the phone can unofficially be upgraded to newer versions of the Android OS family and other aftermarket versions. The Redmi 1S has received many unofficial operating systems such as: LineageOS 18.1, CyanogenMod and Mokee OS.[3][4] Its kernel is open sourced and is available to developers for modification.[5]

Hardware

The Redmi 1S has a plastic chassis that is 5.39 in (137 mm) long, 2.72 in (69 mm) wide, and 0.39 in (9.9 mm) thick, and weighs 158 g (5.6 oz). The screen is a 4.7-inch IPS LCD capacitive touchscreen, supporting 16-million colors at a resolution of 1280 x 720 pixels, equating to around 312 pixel-per-inch density. The device features a Qualcomm Snapdragon MSM8228 which comprises 1.6 GHz Cortex-A7 quad-core central processing unit (CPU) and an Adreno 305 graphics processing unit (GPU), in conjunction with an accelerometer, gyroscope, compass and a proximity sensor. The device is also equipped with 1 GB RAM and 8 GB internal storage, supporting microSD expansion up to 64 GB. Other features include a microphone, GPS, an 8-megapixel rear camera with auto-focus and LED flash, and a 1.6-megapixel front camera. The rear camera is capable of recording videos at 1080p resolution, while the front camera supports 720p resolution recording. The rear of the smartphone features a plain plastic surface with a brushed metal Xiaomi logo at the center-bottom of the rear cover. The smartphone is shipped with a 2,000 mA AC power charger, for charging its 2000–2,050 mAh(min/typ) battery.

Parts Providers
  • Processor: Qualcomm
  • Modem: Qualcomm
  • PMIC: Qualcomm
  • Wifi/Bluetooth: Qualcomm
  • Connectivity: Qualcomm
  • Audio: Qualcomm
  • RAM: Samsung, Elpida
  • Storage: Samsung, Toshiba
  • Display panel: Sharp, AUO
  • Touch: Focaltech
  • Camera: Samsung, OmniVision
  • Battery: Coslight, Sunwoda

Successor

Redmi 2 smartphone, developed and produced by Xiaomi, was released after Xiaomi discontinued its predecessor Redmi 1S. It was announced in January 2015.[6]

See also

References
  1. "Xiaomi Redmi 1S – Full Phone Specifications". GSMArena. Retrieved 21 February 2015.
  2. Ayyar, Kamakshi (27 August 2014). "Decoding Motorola, Xiaomi's online flash sales: Why it's a win-win-win". Firstpost. Retrieved 23 February 2015.
  3. "CyanogenMod 11.0 for Xiaomi Redmi 1S". XDA Developers. 18 October 2014. Retrieved 21 February 2015.
  4. "MokeeOS 5.0.1 Test Build for Xiaomi Redmi 1S". XDA Developers. 20 December 2014. Retrieved 21 February 2015.
  5. "Kernel source code for Xiaomi Redmi 1S". GitHub. Retrieved 21 February 2015.
  6. "Xiaomi Redmi 2".
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