Lets look at its product page here and below you can find my review article, unboxing and test videos:
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PRODUCT PAGE: [You can BUY HERE]
HawkEye Firefly 8S 4K Action Camera (170 FOV)
HawkEye Firefly 8S 4K Action Camera No Distortion Version (90 FOV)
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MY UNBOXING VIDEO: I got the 90FOV No distortion version because I don't want wide angle.
MY REVIEW TEST VIDEO:
Note: Youtube is compressing the video and also my video is rendered in 1080p so you can't see real quality this way. To see the real quality, download and watch real video files here: https://goo.gl/746iHK
Note 2: I want to thank you to gearbest.com for providing this product for review
Detailed Review Article:
If we look at specs of the Firefly 8S, we see that it has Ambarella A12S75 Chipset and IMX117 Sensor that makes possible to record real 4K 30FPS videos. I'm saying real 4K because there are many cheap action cams like Eken H9 but they are not really capable of 4K recording. They are making some software mods and interpolations to make a 4K video. Some of them can only make low FPS in 4K like 15FPS or there are some 4K cameras which record at 3840x2160 but they have 4MP sensors which are not capable to offer 3840x2160 video normally. Even there are some other tricks I read on somewhere like some china brands writing Sony or Ambrella in specs but not using them really. So you need to be careful and watch review and test videos before buying a china brand action cam. They are many really good quality china brand devices with very good prices, so not all of them are bad. But you need to make a good research before buying. If you want real 4K, I recommend Firefly 8S in this price range because I made a research and at the end I decided to get this one (of course there may be better alternatives released in the future or may be there is but I couldn't found). I compared (by reading reviews on the web) with other cams with same/similar specs like Thieye T5e which is said that quality is not good as Firefly 8S and other SJCAM SJ7 Star, Yi 4K which are said very similar video quality but they are more expensive than Firefly 8S. So after considering some other things I decided for this price Firefly 8S seems the best device for me because I want no distortion narrow angle videos. So I get 90 FOV no distortion version. You can see difference between 90FOV and 170FOV versions here (right one is 90FOV version, its lens is bigger) and photos taken by them compared here these are taken from elproducente.com because I have only 90FOV version.
My First Impressions:
I think I made a good decision by selecting this camera because it has a good price/performance ratio. Most important side of this camera for me is it has 90 FOV No distortion version. I don't like wide angle distorted videos, so this is a good point for me. If you want wide angle there is 170 FOV version available also. Note that the 90 FOV version comes with a sun shade for the lens. The design is simple like many other action cams except there is a mirror in the front which is a good idea, I think. The camera surface is rubberized which provides a good grip. Buttons are backlighted, screen is bright and brightness is adjustable. I want to mention that it comes with many accessories including waterproof case like many other china action cams.
Video Quality
This camera has IMX117 sensor and Ambarella A12S75 chipset. This hardware makes it capable of recording real 4K with real 30fps as I talked about above. It also capable 240FPS in 720P and 120FPS in 1080P . Video quality is very good for this price, I think. But it is not very good in low light (you can look at this example video by Pevly Contributors: https://www.youtube.com/watch?v=74jIaCmIY8M ) Note that 30FPS is actually 29.97 FPS, similar to GoPro and Xiaomi YI Action Camera.
Recording Format: videos are recorded in .mp4 files, .h264 codec
Gyro Sensor provides electronic image stabilisation which is only available up to 1080p 60fps. It can turned off if needed.
Dual File mode: It will record two files, one in high and one in low resolution.
There are several video modes:
Video Mode (video recording according to settings)
Video Time-Lapse
Playback (Library)
Car Mode (to use as dashcam)
Slow Motion
Video Resolutions
4K – 16:9 – 30 / 25 fps
4K – SuperView – 25 fps
2160p – 4:3 – 30 / 25 fps
2.7K – 4:3 – 30 / 25 fps
2.7K – SuperView – 30 / 25 fps
2.7K – 16:9 – 30 / 25 fps
2.5K – 16:9 – 60 / 50 / 30 / 25 fps
1440p – 4:3 – 60 / 50 / 30 / 25 fps
1080p – 16:9 – 120 / 100 / 60 / 50 / 30 / 25 fps
1080p – SuperView – 60 / 50 / 30 / 25 fps
960p – 4:3 – 120 / 100 / 60 / 50 / 30 / 25 fps
720p – 16:9 – 240 / 200 / 120 / 100 / 60 / 50 / 30 / 25 fps
720p – SuperView – 120 / 100 / 30 / 25 fps
Note: Sview is a stretched 16:9 image using the full 4:3 sensor.
Photo quality
Photo modes:
Photo (Single Picture according to settings)
Burst (up to 10 pictures per second)
Playback (Library)
Photo Time-lapse (several individual photos)
Long Exposure (long exposure from 1/30 sec up to 60sec.)
Here are some example photos I taken. I will add more colorful photos soon...
Conclusion
I think it has a very good price (especially with gearbests discount codes) for a real 4K 30FPS capable camera, of course in the future better alternatives may be released, but I couldn't found better alternative for this price when I get this. It has many positive sides like, IMX117 image sensor, Ambarella A12S75 chipset, comes with many accessories, it has 90FOV no distortion version which is important for me, wifi and bluetooth support... etc. If you have a limited budget and want best performance for this price level, I recommend this camera. Of course there may be better alternatives released in the future, so I recommend make a research before buying. Here I listed PROS and CONS:
PROS
+ Very good price for a real 4K 30FPS capable camera (of course in the future better alternatives may be released, but I couldn't found better alternative for this price when I get this )
+ Comes with waterproof case and many accessories
+ sunshade for the lens (only for 90FOV version)
+ external mic support with micro usb port
+ Gyro electronic image stabilization (available up to 1080p 60FPS)
+ microphone sensitivity can be set
+ 2" LCD screen is bright enough and brightness is adjustable
+ WiFi app connectivity
+ support Bluetooth remote
CONS
- no RAW photo support
- design is not looking futuristic, no touch screen like Xiaomi YI 4K but of course these features would be increase the price
- low light performance is not good
About Connectivity
It uses wifi to connect via App (NEW Firefly App for iOS and Android available). And bluetooth feature is not to connect phone, it is for bluetooth remote which is sold seperately. Firefly 8S has a mini USB port which supports an external microphone and also A/V output and there is also a micro HDMI Port.
Detailed Specs:
(from the product page)
Description:
The action camera HawKeye Firefly 8S offers six-axis gyro video stabilization that can produce very stable video image without losing any view angle. With the 170 degree lens, the sports camera can retain more realistic scene and captures more immersive and wide-angle videos and photos. The equipped processor will provide you with real 4K videos and pictures. What is more, the sports camera supports Bluetooth remote control and external microphone, thus, you can capture photos and videos more easily and clearly.
Main Features:
Equipped with Ambarella A12S75 chip, presents high quality videos ( 4K / 30fps, 1080P / 120fps, 1080P / 60fps Super-view, 720P / 120fps )
Top-level IMX117 image sensor, producing very good wide dynamic range imaging effect
Low illumination performance, present good video quality and vivid color even in low light environment
Support Bluetooth remote controller ( not included )
Support external microphone ( not included )
You can download the APP "firefly" in Google Play or Apple Store
6-axis gyro video stabilization
WiFi
Max External Card Supported: TF 128G (not included)
Screen: 2.0inch LCD with 640x480 resolution
Battery Capacity (mAh): 1200mAh
Video format: MP4
Water Resistant: 20m ( with waterproof case )
Night vision : No
Camera Timer: Yes
Auto Focusing: No
Anti-shake: Yes
Product weight: 0.0700 kg
Product size (L x W x H): 5.90 x 2.10 x 4.10 cm / 2.32 x 0.83 x 1.61 inches
Package Contents: 1 x FIREFLY 8S 4K WiFi Sport HD DV Camera, 1 x Waterproof Case, 1 x J-shaped Mount, 1 x Long Connector + Screw, 2 x Short Connector + Screw, 1 x Bike Handlebar Seatpost Pole Mount, 1 x 360 Degree Rotation Adapter, 2 x Mount, 2 x Adhesive, 1 x Metal Cable Tie, 4 x Plastic Cable Tie, 1 x Cleaning Cloth, 1 x Clip, 1 x Clip Case, 1 x English / Chinese Manual
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