Dear Customers: Please kindly note YI 4K Action Camera (Black) is in stock now!

FAQ about YI 4K Action Camera 2 – Keep Updating.

Not available for Poland, Israel, Korea, Saudi Arabia, Thailand, Burma, Singapore
Dear Customers: Please note that this item is Official International Version YI 4K Action Camera, the APP and upgrade programs will work normally outside China mainland, while the Chinese version can only work in China.

Highlights

4K movie class resolution video
YI 4K action camera, the movie class picture quaility is for serious photographer like you!
Ambarella A9SE75 DSP
Ambarella's new generation of high performance and ultra low-power consumption A9SE75 chip. Support H.264 encoding, low power consumption even at 4K/30fps, blu-ray video, operating temperature at -20 to 85 centigrade.
Sony IMX377 12MP 1/2.3" Sensor
Don’t get irritated as the sensor of the first Yi Action Camera features the larger 16 MP Sony Exmor IMX206 sensor. The IMX377 is faster and enables the new model to shoot 4K video!
155 degrees Ultra Wide Angle 7 glass Lens
7 layers of optical glass lenses combined with f2.8 large aperture increase the light intake and capture more delicated and clear pictures.
1400mAh battery provides longer service life
High capacity 1400mAh battery enables long-lasing shooting, it can use for up to 120min under 4K mode.
WiFi & Bluetooth Connection for iOS / Android device
Stunning editing feature on YI action App makes you a master in creating astonishing pictures for sharing.
Low power Bluetooth remote control
Mini appearance compact design
Multiple photo shooting modes: single shot, self-timer, time-lapse, burst shot
Support storage cards up to 64GB maximum (Micro SD Card Class10+ recommended)
Water-resistant up to 40 meters under water with waterproof housing

Specification

General
Brand	YI
Model	YI 4K
Color	Black
Hardware
Main Processor	Ambarella A9SE75 chipset, includes a 800 MHz dual-core.Cortex-A9 ARM CPU and a high-performance digital signal processing (DSP) subsystem with a 32-Mpixel image sensor pipeline (ISP), and an advanced H.264 encoder capable of 4K resolution.
Image Sensor	SONY IMX377, 1/2.3", 12 megapixels CMOS image sensor with Exmor R ability.
LCD Screen	2.19", 640*360 resolution touch screen, 330PPI, 250cd/m2 brightness, 30FPS, 160° FOV, 16:9
Lens	Lens F2.8 aperture / 155° wide-angle lens, 7G, f=2.68mm
Wi-Fi	Broadcom BCM43340 Dual-band 5GHz /2.4GHz, built-in (802.11 abgn),offers 30Mbps download speed
Weight	3.4 ounces (camera + battery)(battery removable)
Size	65 x 42 x 21 mm
Video Mode
Video Resolutions	FPS NTSC/PAL	Field of View(FOV)	Screen Resolutioin
4K	30,25	Ultra Wide	3840x2160
2.5K	30,25	Ultra Wide	2560x1920
1440P	60,50,30,25	Ultra Wide	1920x1440
1080P	120,100,60,50,30,25	Ultra Wide	1920x1080
960P	120,100,60,50	Ultra Wide	1280x960
720P	240,200	Ultra Wide	1280x720
480P	240,200	Ultra Wide	848X480
Video Format	H.264 codec, .mp4 file format
Time Lapse Video	Creates video from frames captured at set intervals. 4K (16:9)\2.5K(4:3) fps:30\25 Interval:0.5, 1, 2, 5, 10, 30, 60s
Slow Motion	Record high frame rate video, play it at a low frame rates, form the slow motion video. 720p fps:60\120\240 Rate: 2\4\8
Video + Photo	Record video and capture Time Lapse photos at the same time. 1080p fps:60\50\30\25 1440p fps:30\25 2.5K fps:30\25 Interval: 5,10,30,60s
Loop	Record a continuous video loop and overwrites itself until you press the shutter button to stop it and save. Video length: 5 min, 20 min, 60 min, 120 min, Max
Highly Advanced Technologies
Electronic Image Stabilization	Built-in 3 axis gyroscope and 3 axis accelerometer. Uses a cross-border compensation algorithm to compensate the motion change to produce stable video quality Resolutions supported:1080p fps:60\50\30\25 960p fps:60\50
Auto Low Light	With a normal camera, the user must manually adjust the parameters according to different light conditions. YI 4K Action Camera makes it easy for you, it senses the change of the light condition with CMOS, and ISP processor will adjust the frame rate and parameters automatically and to produce the highest image quality at low light.
Lens Distortion Correction	100% of the wide-angle lens distortion correction
Photo Mode
Photo Resolutions	Field of View (FOV)	Screen Resolution
12MP	Ultra Wide	4000x3000
8MP	Ultra Wide	3840x2160
7MP W	Ultra Wide	3008x2256
7MP M	Medium	3008x2256
5MP	Medium	2560x1920
Timer	Count down, then photo capture. Countdown: 3, 5, 10, 15s
Burst	Press the shutter button to capture a series of photos. Frequency: 3p/s, 5p/s, 10p/s, 10p/2s, 10p/3s, 30p/s, 30p/2s, 30p/3s, 30p/6s
Time Lapse Photo	Capture a series of photos at timed intervals. Interval: 0.5, 1, 2, 5, 10, 30, 60s
Shutter	Only for Photo Mode and Timer Mode, which determines the length of time needed to open the shutter. Shutter settings: Auto, 2s, 5s, 10s, 20s, 30s Shooting speed: 1/4096s to 30s
Self-defined IQ parameters for demanding customers
YI 4K Action Camera has multiple high-level settings such as shutter at an exposure time of 30 seconds; Exposure Value compensation setting (EV), Setting of level of sensitivity (ISO); Metering Mode; White Balance (WB); etc. Together with the choice of 9 shooting modes, you can make impressive work like a professional photographer.
WB (White Balance)	Users can adjust the white balance settings to change the overall color of the video or photo.
White Balance Setting		Recommended Lighting Conditions
Auto (Default)		Automatically adjusts the white balance via environment, without human intervention.
Native		The original color
Tungsten		3000K, tungsten or sunrise / sunset lighting conditions
Daylight		5500K, cool fluorescent, average daylight conditions
Cloudy		6500K, cloudy environmental conditions
ISO (Level of sensitivity)	Change the camera photosensitivity in low light environmental conditions to enhance the brightness for the video or photo. In low light environmental conditions, the higher the ISO value, the brightness the captured video or photo,the greater the signal noise, grainy strong, and vice-versa.
Others
ISO for Video		Resulting Video Quality
Auto (Default)		Automatically adjusts the sensitivity according to the environmental conditions
400		Darker video in low light, minimum image noise
1600		Moderately bright video in low light, moderate image noise
6400		Brighter video in low light, highest image noise
ISO for Photo		Resulting Photo Quality
Auto (Default)		Automatically adjusts the sensitivity according to the environmental conditions
100		Bright photo in outdoor daylight, minimal image noise
200		Bright photo in indoor lighting, marginal image noise
400		Darker photo in low light, moderate image noise
800		Darker photo in very low light, increased image noise
EV (Exposure Value compensation)	It influences the brightness of the video or photo. When shooting in a contrasting light environmental conditions, you can adjust this parameter to control the brightness of the video or photo. Value adjustment will increase the brightness of the video or photo based on the default basis. -2.0, -1.5, -1.0, -0.5, 0(Default), +0.5, +1.0, +1.5, +2.0
Metering Mode	Divided into two metering modes: spot and center.
Video Quality	Divided into high, medium and low grades.
Battery
High-density lithium polymer battery, battery specification is 3.85V, 1400/1430mAH(min/typ), 5.39/5.51Wh(min/typ). Input Current: 1A Input Voltage: 5V
Others
4K 30fps	120 Mins		100 Mins
4K Ultra 30fps	109 Mins		91 Mins
2.5K 30fps	138 Mins		132 Mins
1080p 120fps	120 Mins		103 Mins
1080p Ultra 120fps	120 Mins		108 Mins
1080p 60fps	120 Mins		108 Mins
1080p Ultra 60fps	156 Mins		136 Mins
960p 120fps	148 Mins		125 Mins
720p 240fps	134 Mins		109 Mins
720p Ultra 120fps	138 Mins		124 Mins
Photo + Video Playback
LCD	It's easy to preview and play back of videos and photos on the LCD.
App	Use YI Action App to preview and play back videos and photos.
Computer	Connect via Micro USB to USB cable, preview and play back of videos and photos or copy files from the Micro SD card to your computer.
TV	Preview and play back of videos and photos on your TV via the optional cable.
Others
Operate Temperature	32°F-113°F
Operate Humidity	15~90%RH
Storage Temperature	-4°F-140°F
Waterproof	Up to the depth of 40 meters with the waterproof case.
Bluetooth	Built-in 4.0BLE & 2.0 Dual
Remote Control	Bluetooth (4.0BLE low power consumption)/The following bluetooth remote control,camera parameters can be set flexibly
G-Sensor	Built-in Bosch BMI160, 6-axis gyroscopic, provides precise acceleration and angular rate measurement.
Indicator Light	Tricolor power indicator(red,blue,violet),a red status indicator.
Focal length	2.73±5%mm
Mountable	Built-in tripod mount(1/4")
Average Power Consumption	2.5W
Audio	360° omni-directional dual microphones
Built-in speaker	YI 4K Action Camera records stereo sound in 48kHz, with dual microphones. It optimizes the sound collection and can provide good audio quality even at large outdoor sport events. With AAC Dolby encoder, it records every detail of the sound.
Storage	Micro SDHC, SDXC Card 16GB - 128GB with FAT32 format We recommend micro SD card below to ensure high-quality 4K video. Transcend Ultimate 633x U3 / Sandisk Extreme U3 / Sandisk Extreme PRO U3 Lexar 1000x U3 / Sony SR-64UX U3 / Sandisk Extreme PLUS U3
Package Contents
1 × Camera
1 × USB Cable
1 × User manual