The brand new Xiaomi Yi 4k has the same video resolutions than GoPro 4 black, max 4k @ 30fps, but it uses the new Ambarella A9SE chip – while Gopro 4 mounts the older A9 – and the new performing 12MPSony IMX377 sensor with a dimension of 1/2.3″.
It has a big 2.19″ touchscreen display, where you can see what you are recording or shooting, change options and features, and playback videos.
Besides, it has a wifi 2 times faster than the gopro one, that reaches 3MB/s download speed, a 1400mAh battery that promises to record up to 120 minutes at the maximum 4k@30fps resolution, and above all a6-axys Gyro stabilizer that removes vibrations and unwanted movements – and GoPro 4 doesn’t have one -. Talking about the audio, Xiaomi Yi2 mounts 2 microphones for a superior stereo audio quality. And all of this for 249$! (216$ with coupon code below)
Xiaomi Yi 2 is on pre-sale at Gearbest right now at 249$, the best price of the web. After the presale it should cost 300$. But if you use the coupon code GBXiaoyi2 during the pre-sale period you will pay it just 216$!
Sensor:
Xiaomi Yi 2 features the new Sony IMX377 sensor with 12,35 MP.
It has less MP than the Xiaomi Yi that mounts a Sony Exmor IMX206 with 16 MP , but the IMX377 is faster and have better performances and can record with a resolution of 4k @ 30fps with a bitrate of 60mbps.
It has less MP than the Xiaomi Yi that mounts a Sony Exmor IMX206 with 16 MP , but the IMX377 is faster and have better performances and can record with a resolution of 4k @ 30fps with a bitrate of 60mbps.
Compared with previous versions, it captures high resolution image but consumes less power and also deliver better image quality at low light. IMX377 sensor supports 3840*2160 ultra-clear 4K video resolution and 12M pixel photo. It has 1.55um high sensitivity large sensor pixel size which helps produce bright images with clear details and less noise even in poor lighting conditions.
Chip:
The new Xiaomi Yi 2 4K Action Camera features the last version of the new Ambarella A9SE75 chip. GoPro Hero 4 black edition uses the older Ambarella A9 chip. This chip allows better performances with lower power consumption, allowing the battery to last for up to 2 hours at the maximum resolution. The core of YI 4K Action Camera is Ambarella A9SE75 SoC, 28nm CMOS technology, 800MHz dual core Cortest-A9 ARM processor and high-efficient Digital Signal Processor (DSP), supports H.264 BP/MP/HP first class encoding, low-power consumption even at 4K/30fps. The upgraded SoC supports Len Distortion Correction (LDC) to correct image distortion due to wide-angle lens; built-in Electronic Image Stabilization (EIS), 3D noise-cancellation and 48000KHz stereo audio.
Video resolutions & Frame Rate:
4K – max. 30fps (bitrate 60 mbps)
2.5k @ 30fps
2k @ 60fps
1080p @ 120 fps as gopro 4 black
720p @ 240 fps
2.5k @ 30fps
2k @ 60fps
1080p @ 120 fps as gopro 4 black
720p @ 240 fps
Lens:
Glass lens with 7 layers , aperture f/2.8. YI’s 7 layers of optical glass lenses, combined with an F2.8 large aperture, increases light intake to capture crisp and detailed footage, anytime, anywhere. Field of view is 160°.
Display:
Xiaomi YI 4K Action Camera 2 will have a 2,19″ retina LCD display, with a resolution of 640 x 360 pixel and 330PPI, with Gorilla Glass.
It is a touchscreen display, very easy to use when changing settings. Customized with a 330ppi high resolution and high-sensitivity retina touchscreen for an intuitive experience. 2.19 inches of Gorilla Glass to resist scratches and daily impact. Viewable from a 160° angle. You won’t miss the perfect shot with the 640*360 widescreen for quick and easy previewing and shooting. Control YI 4K at your fingertips. No extra hands needed.
It is a touchscreen display, very easy to use when changing settings. Customized with a 330ppi high resolution and high-sensitivity retina touchscreen for an intuitive experience. 2.19 inches of Gorilla Glass to resist scratches and daily impact. Viewable from a 160° angle. You won’t miss the perfect shot with the 640*360 widescreen for quick and easy previewing and shooting. Control YI 4K at your fingertips. No extra hands needed.
Battery:
Battery has 1400 mAh at 3.8V and should allow 110 min. recording at 4K @ 30fps. GoPro 4 records up to 55 minutes at the same resolution.
Gyro stabilizer
Xiaomi Yi 4K also features an electronic Gyro stabilizer embedded that removes vibrations and undesired movements. We need to try it to see if it is effective like the one of Git2 and Sony AS200v, but if it is, the Xiaomi Yi 2 will be soon the real Gopro Killer!
Action videos usually require post-production to reduce shakiness. With YI 4K Action Camera, you can avoid extra time spent editing due to the camera’s Electronic Image Stabilization (EIS) feature. EIS uses built-in gyroscope and accelerometer sensor to detect position and motion change. When the camera tilts, moves, shakes or experiences impact, the sensors will send data to EIS and EIS will use image a cross-border compensation algorithm to compensate the change to produce stable videos.
Audio
360° omni-directional dual microphones produce studio sound quality.
Xiaomi Yi records stereo sound in 48kHz with dual microphones. High-sensitivity and high signal to noise (SNR) microphones capture crystal clear sound even in noisy environments. Built-in highly optimized AAC encoder to record every detail of the sound.
Lens Distortion Correction (LDC)
With wide-angle lens comes along lens distortion. Fortunately, the powerful A9SE75 SOC can correct the distortion in real-time. You can save your distortion free image/video directly from your camera. Skip unnecessary editing, simple as that.
Connectivity & Ports:
WifiXiaomi YI 4K Action Camera 2 uses a dual band wifi network to allow faster download speed. It mounts a Broadcom BCM43340 dual-band, 802.11a/b/g/n, 2.4GHz/5GHz, with up to 3MB/s download speed.
Bluetooth
Xiaomi Yi 4k features also bluetooth, so as in the previous model it will be possible to use a remote control to command the cam.
Xiaomi Yi 4k features also bluetooth, so as in the previous model it will be possible to use a remote control to command the cam.
Ports
It has microUSB e microHDMI port.
Than a door for the removable battery and the micro sd; on the bottom it has a 1/4″ hole for tripod mounts.
It has microUSB e microHDMI port.
Than a door for the removable battery and the micro sd; on the bottom it has a 1/4″ hole for tripod mounts.
Colors:
It will be released in 3 elegant colorswhite, black and pink.
Xiaomi Yi 4k Accessories
Waterproof case
Xiaomi Yi2 has an optional professional waterproof case up to 40m (132 feet)
Ultra durable and waterproof up to 132’: Waterproof grade IP68 to protect your camera from up to 132’ under water. Specialized design delivers sharp images above and below water.
Ultra-white glass B270: German Schott glass used on Waterproof Case lens, 98.5% on light transmittance
delivers high definition images above and below water.
delivers high definition images above and below water.
Sturdy spring latch to prevent accidental opening Friendly spring latch to lock case: Waterproof to 132’ | Hermetically sealed | ¼ Internal Thread Connection | Friendly Spring Latch | Ultra-white glass B270 | Tool free.
YI 4K Action Camera Protective Lens + Leather case
European PU leather magnetic snap case: Hand selected high-quality PU leather from Europe, superfine fiber lining, meticulous in protection and delicate in design
Japanese ultra-white AGC soda lime glass: Japanese ultra-white AGC soda lime glass for increased sharpness and optical performance
YI UV protective lens: Ultra thin UV lens frame processed by Seamless aluminum alloy material to prevent glare for optimal viewing.
Xiaomi Yi 4k stabilizer works pretty well removing vibrations and unwanted movements shooting steady and smooth videos, while the Gopro 4 doesn’t have a stabilizer and its videos are shaky.
Besides, Gopro 4 battery with 1050mAh can record 50 minutes videos while the Xiaomi Yi 4k has a1400mAh battery that can record up to 2 hours video, 117 minutes to be precise, thanks to its high capacity of 1400mAh and to the low power consumption of the new Ambarella A9SE chip.
Conclusions
We really need to test the Xiaomi Yi 4k to see how it behaves and the quality of the videos, photos and above all the stabilizer. We are quite sure the video quality will be good, thanks to the Sony sensor and the Ambarella chip, and also because the previpus Yi can record really nice videos.
The price is higher than Git2 and SJ5000X but half the Gopro 4 Black, but it has a better chip and sensor, a rear touchscreen display and a stabilizer, so it will probably be a real Gopro 4 killer. And you will just need to take it on vacation as it will record nice smooth and steady videos, excellent photos with a touchscreen display to frame the shot. It will also have a Blootooth remote control for selfies or to control the cam on the helmet or bike, and a waterproof case to use it underwater.
Now it is on pre-sale on Gearbest for 249$ but with coupon code GB16SALE you will pay it just 229$. Xiaomi Yi 2 will be for sure in our list of the best action cams of 2016, and will be probably a best seller.
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