Yi 4k Sports and Action Video Camera Us Edition

YI 4K ACTION CAMERA

Main Processor	Ambarella A9SE 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=2.66±5%mm
Wi-Fi	Broadcom BCM43340 Dual-band 5GHz /2.4GHz, built-in (802.11 abgn),offers 30Mbps download speed
Size	65 x 42 x 30 mm

Video Mode
Video Resolutions	Frames Per Second (fps) NTSC/PAL	Field of View (FOV)	Screen Resolution
4K	30, 25	Wide	3840x2160
4K Ultra	24	Ultra Wide	3840x2160
2.7K(16:9)	60, 50, 30, 25	Wide\Medium	2704x1520
2.7K Ultra	30, 25	Ultra Wide	2704x1520
2.7K(4:3)	30, 25	Wide\Medium	2704x2032
1440p	60, 50, 30, 25	Wide	1920x1440
1080p	120, 100, 60, 50, 30, 25	Wide\Medium\Narrow	1920x1080
1080p Ultra	90, 60, 50, 30, 25	Ultra Wide	1920x1080
960p	120, 100, 60, 50	Wide\Medium	1280x960
720p	240, 200	Wide	1280x720
720p Ultra	120, 100, 60, 50	Ultra Wide	1280x720
480p	240, 200	Wide	848x480

Video Format	H.264 codec, .mp4 file format
Time Lapse Video	Creates video from frames captured at set intervals. 4K (16:9)\2.7K(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 2.7K (4:3) 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：2.7K (16:9) fps:60\50\30\25 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：0.5s, 1s, 2s, 5s, 10s, 30s, 60s, 2Min, 5Min, 30Min, 60Min
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 sensitivity to light in low light conditions, in order to enhace the brightness of the videos and photos. In low light conditions, high ISO value will grant a brighter picture, but will also increase the noise level, making it grainy.

ISO-MAX 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-Max and ISO-Min 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.

Video Mode	With Wi-Fi Off + LCD Off (YI test lab)
4K 30fps	110 Mins
4K Ultra 24fps	115 Mins
2.7K 30fps	144 Mins
1080p 120fps	108 Mins
1080p Ultra 90fps	111 Mins
1080p 60fps	119 Mins
1080p Ultra 60fps	135 Mins
960p 120fps	137 Mins
720p 240fps	118 Mins
720p Ultra 120fps	152 Mins

* The above data is for reference only. Test conditions: lab, about 24 ℃ during daytime, default settings (external ambient temperature, humidity and recording content will affect the battery life)

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.
Available Colors	Night Black/ Pearl White/ Rose Gold
Focal length	2.73±5%mm
Mountable	Built-in tripod mount(1/4")
Warranty	12 Month
Average Power Consumption	2.5W
Highest bitrate	60Mbps
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	Storage cards Storage standard: MicroSDHC, MicroSDXC 16GB - 64GB Storage card. 【Please use UHS-I Speed Class 3 (U3) storage card, it can provide High-speed and great performance.】 *We recommend a MicroSD card below to ensure high-quality 4K video.

Yi 4k Sports and Action Video Camera Us Edition

Source: https://www2.yitechnology.com/yi-4k-action-camera-specs

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