SJCAM A20 4K Dashcam + BodyCam - Gyro Stabilization Starlight Night Vision + TS HD Video Format - Quick Review

TonyCams

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sjcam a20 bodycam and dashcam


The SJCAM A20 bodycam is the improved version of the A10 which was released 2 years ago. The upgraded A20 adds 4k @ 24fps video recording, Gyro stabilizationand TS HD video format. In addition, the A20 has a new feature which is called "Starlight night vision." In addition its being a bodycam, the A20 also has car mounts which enables it to also double down as a dashcam.

With a IP65 waterproof rating, wear the A20 while cycling, running, or patrolling, rain, snow or shine.

Stay tuned to this blog as we'll be doing an unboxing review for the SJCAM A20 bodycam. We'll also be uploading some RAW footage clipos.

A20 Bodycam Video resolution:

  • 4K(2880*2160)24fps
  • 2K(2560*1440)30fps
  • 1080P(1920*1080)60/30fps
  • 720P(1280*720)120/60/30fps
  • VGA(640*480)240fps
Photo resolution:

  • 16M(4608*3456)
  • 12M(4032*3024)
  • 10M(3648*2736)
  • 8M(3264*2448)
  • 5M(2592*1944)
  • 3M(2048*1536)
  • VGA(640*480)
Vertical video resolution:

  • 2K(1440*2560)30fps
  • 1080P(1088*1920)30fps
Loop recording time: 3 minutes, 5 minutes, 10 minutes; 25 minutes can be recorded when loop recording is turned off

Video format: MP4

Photo format: JPG

Video mode: video, interval video, slow video, video/photograph, car mode, portrait video

Photo mode: photo, interval photo, continuous photo

Exposure mode: automatic, manual

White balance: automatic, manual

Motion detection: support

Voice broadcast: support

Bluetooth remote control: not supported

FPV: Support

Webcam: Supported

Gyro Anti-shake: supported

Red and blue flashing lights: supported

LED lights: support

USB interface: Type-C interface

On-board storage: Depends on the capacity of the memory card, up to 128GB

Charging time: about 5 hours

Life time: 4K24fps can be used continuously for about 5 hours

1080P30fps can be used continuously for about 7 hours

Learn more about the SJCAM A20 here: SJCAM A20
 

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kamkar

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10 years, many dashcams
4K / 24 FPS sound like it is extrapolated, and i kind of hope so cuz the current 4K sensors dont do too well in low light.
Will be interesting to see how well EIS do, this is very important in body cams i think, but of course in low light it will probably not work well, like so many action cameras too.
OIS would probably be the best solution for body cameras.
 
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TonyCams

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4K / 24 FPS sound like it is extrapolated, and i kind of hope so cuz the current 4K sensors dont do too well in low light.
Will be interesting to see how well EIS do, this is very important in body cams i think, but of course in low light it will probably not work well, like so many action cameras too.
OIS would probably be the best solution for body cameras.
I will check if it is real 4k or not. i shot some footage... will upload it in a bit...
 
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TonyCams

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It's been a few weeks since we first received the SJCAM A20 wearable body mount camera. The A20 definitely improves on its predecessor, the A10 in several ways.

The A20 has a Sony IMX335 sensor, whereas the A10 has the IMX323. A20 has the NTK9660 and the A10 has the 96658 chipset.

The A20 has a nice sturdy build which definitely is IP65 waterproof. The larger 2.33-inch front facing touchscreen is also a plus.

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Something that we forgot to mention in our unboxing video below is that the A20 also supports Bluetooth remote which is convenient if you want to use the A10 as a bodycam, security cam or dashcam. Just press the button to quickly begin capturing 4k footage.

The SJCAM A20 is a very sturdy wearable body mount camera. We shot video with the A20 set at 4k 24fps with Gyro Stablization on. The body camera was mounted to my t-shirt so wasn't in my hand or mounted down by a strap.

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Let us know if you'd also like to see night footage.
 

Nigel

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yeah the 335 are 5 Mpix as i recall, so only "2/3" of the way there
It is also 4:3 aspect ratio, so you need to throw away some of that 2/3rds and end up with 44%.
 

kamkar

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Thats right, a issue i often forget with sensors.
 
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TonyCams

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yup, the A20 BodyCam has interpolated 4k. ... I think it definitely improves on the a10. If there were an external mic with clip, i think it would be a great vlogging cam. Also need to find a chest mount. I imagine this could be a good dashcam. Unfortunately, i don't have a car or I'd shoot some sample footage. will get to shooting some night footage if anyone wants to see that.

I finished the a20 blog post here
 
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TonyCams

TonyCams

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We have SJCAM A20 bodycam night time footage:



Also, check out waterfront footage shot using the A20 bodycam:

 
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