Yi4K camera specs and sizes

Yi 4K Action Camera

Part Details
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=2.68mm
Wi-Fi Broadcom BCM43340 Dual-band 5GHz /2.4GHz, built-in (802.11 abgn),offers 30Mbps download speed
Weight 3.4 ounces (camera + battery)
Size 65 x 42 x 30 mm

Advanced Technology

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

Video Modes

Video Resolutions Frames Per Second (fps) NTSC/PAL
4K (3840×2160) 30, 25
2.5K (2560×1920) 30, 25
1440p (1920×1440) 60, 50, 30, 25
1080p (1920×1080) 120, 100, 60, 50, 30, 25
960p (1280×960) 120, 100, 60, 50
720p (1280×720) 240, 200
480p (848×480) 240, 200

Photo Modes

Photo Resolutions Field of View (FOV) Screen Resolution
12MP Ultra Wide 4000×3000
8MP Ultra Wide 3840×2160
7MP W Ultra Wide 3008×2256
7MP M Medium 3008×2256
5MP Medium 2560×1920

Photo Shooting Modes

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

Custom settings

The 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.

ISO for video Auto (Default) 400 1600 6400
ISO for photo Auto (Default) 100 200 400 800
WB (White Balance) Auto (Default) Native Tungsten (3000K) Daylight (5500K)
EV (Exposure Value compensation) -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.


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

The chart below indicates the approximate continuous recording time (hour:min) you can expect when shooting in various video modes using a fully charged battery.

Video Mode With Wi-Fi Off + LCD Off (YI test lab) With Wi-Fi On + LCD Off + App Connect(YI test lab)
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


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″)
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 formatWe recommend micro SD card below to ensure high-quality 4K video.