OnePlus was founded on 16 December 2013 by former Oppo vice-president Pete Lau and Carl Pei.According to Chinese public records, the OnePlus' only institutional shareholder is Oppo Electronics. Lau denied that OnePlus was a wholly owned subsidiary of Oppo and stated that Oppo Electronics and not Oppo Mobile (the phone manufacturer) is a major investor of OnePlus and that they are "in talks with other investors."The company's main goal was to design a smartphone that would balance high-end quality with a lower price than other phones in its class, believing that users would "Never Settle" for the lower-quality devices produced by other companies. Lau explained that "we will never be different just for the sake of being different. Everything done has to improve the actual user experience in day-to-day use." He also showed aspirations of being the "Muji of the tech industry", emphasizing its focus on high-quality products with simplistic, user-friendly designs. Continuing Lau's association with the platform from the Oppo N1,OnePlus entered into an exclusive licensing agreement with Cyanogen Inc. to base its products' Android distribution upon a variant of the popular custom ROM CyanogenMod and use its trademarks outside of China.

16MP Selfie Camera.

The A57 sports a 16MP flagship-level front camera. The all new Beautify 4.0 will help capture your best look in breathtakingly detailed photos, giving you bright, head-turning shots even in low light.

13 MP Rear Camera.

The A57 uses Sony?s extremely light-sensitive Stacked CMOS sensor, as well as PDAF (phase detection autofocus) technology, so that as soon as you pull your phone out, you?ll be ready to get a great shot in an instant.

Qualcomm Snapdragon: Better performance in every way.

Qualcomm Snapdragon Processors not only manage your mobile device's features, they improve them. Snapdragon is designed to enhance your mobile experience in every way. Enjoy improved connectivity (WiFi, 4G and 4G LTE and clearer calls), enhanced power and efficiency. You'll enjoy enhanced multimedia features thanks to the advanced camera features of a Snapdragon processor and realistic 3D graphics for gaming. And since your mobile device is only as good as its security, Qualcomm Snapdragon processors have built-in security systems which use safe, direct communication links when dealing with sensitive information.

3GB RAM +32GB ROM.

The A57?s 3GB RAM and octa-core 64-bit processor make for powerful performance and seamless multitasking. What?s more, with 32 GB of onboard storage, expandable by a further 256 GB, you?ll have plenty of room to stock up your phone with your favorite TV shows and take them out the door.

Lightning-fast Fingerprint Unlock.

With the A57?s flagship-level solid-state fingerprint reader, the slightest touch of your finger can unlock the device. With a hydrophobic zirconium surface, the fingerprint reader has a boosted success rate even when your fingers are moist.

Long-lasting 2900mAh Battery

Even in its attractively slight 5.2-inch unibody, the A57 manages to pack a powerful 2900 mAh battery, giving the device just the right weight in the hand and offering excellent video playback time. The A57 clocks in at 11 hours of continuous video watching, 23 hours on the phone, or about 13.5 hours in a scenario of varied continued use.

All New ColorOS 3.0 Based On Android 6.0

Based on Android 6.0, ColorOS 3.0 is seamlessly responsive, providing a smooth, steady and lightweight experience that optimizes power use and keeps users cruising through the day.

Technical Specifications:

Display

• Display Size: 5.2 inches (~68.6% screen-to-body ratio)
• Display Resolution: 720 x 1280 pixels (~282 ppi pixel density)
• Display Type: IPS LCD capacitive touchscreen, 16M colors
• Multi-touch: Yes

Camera

• Back Camera: 13 MP, f/2.2, phase detection autofocus, LED flash
• Features: Geo-tagging, touch focus, face detection, HDR, panorama
• Video: Yes, 1080p@30fps
• Front Camera: 16 MP, f/2.0, 1.12 ?m pixel size, 1080p

Processor

• Chipset: Qualcomm MSM8940 Snapdragon 435
• CPU: Octa-core 1.4 GHz Cortex-A53
• GPU: Adreno 505

Memory

• System Memory: 3 GB RAM
• Internal Memory: 32 GB
• Card Slot: microSD, up to 256 GB (uses SIM 2 slot)

Software

• Operating System: Android 6.0 (Marshmallow)
• Color OS 3.0
• Java: No
• Document viewer
• Photo viewer/editor

Sound

• Alert types: Vibration, MP3, WAV ringtones
• Loud Speaker: Yes
• 3.5mm Jack: Yes

General

• 2G Network: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
• 3G Network: HSDPA 850 / 900 / 1900 / 2100
• 4G Network: LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
• SIM: Dual SIM (Nano-SIM, dual stand-by) or Single SIM + Micro SD Card

Data

• GPRS: Yes
• EDGE: Yes
• Speed: HSPA, LTE
• WLAN: Wi-Fi 802.11 b/g/n, hotspot
• Bluetooth: Yes, 4.1, A2DP
• USB: Yes, microUSB 2.0, USB Host

Features

• Sensors: Fingerprint (front-mounted), accelerometer, proximity, compass
• Messaging: SMS (threaded view), MMS, Email, IM, Push Email
• Browser: HTML5
• GPS: Yes, with A-GPS
• Radio: FM radio

Multimedia

• Audio: MP3/eAAC+/WAV player
• Video: MP4/H.264/FLAC player

Power

• Battery: Non-removable Li-Ion 2900 mAh battery

Body

• Dimensions: 149.1 x 72.9 x 7.7 mm
• Weight: 147 grams