Sjcam SJ4000 review: specs and price
Sjcam SJ4000
Why is Sjcam SJ4000 better than the average?
- Field of view?
170°vs156.04° - Volume?
60.76 cm³vs107.57 cm³ - Minimum focal length?
2.99 mmvs16.43 mm - Weight?
58 gvs110.44 g - Thickness?
24.7 mmvs33.59 mm - Waterproof depth rating?
30 mvs22.26 m - Height?
41 mmvs55.22 mm
Price comparison
SJCAM SJ4000 4K30fps 40MP Action Camera WiFi Camera with Stabilization,Underwater 98ft Waterproof Camera ...SJCAM SJ4000 4K30fps 40MP Action Camera WiFi Camera with Stabilization,Underwater 98ft Waterproof Camera with Dual Batteries,170°FOV 5X Zoom,32G SD Card and Helmet Mount Accessories Kits
SJCAM Upgraded SJ4000 Action Camera Dual Screen 4K30FPS Ultra HD Underwater Waterproof Camera 170° Wide-A...SJCAM Upgraded SJ4000 Action Camera Dual Screen 4K30FPS Ultra HD Underwater Waterproof Camera 170° Wide-Angle WiFi Helmet Camera with 2 Batteries, SD Card and Accessories Kits for Motorcycle Riding
SJCAM SJ11 Active HDR Upgraded 4K30FPS WiFi Action Cameras Touch Screen Stabilization 3.0 Remote Control ...SJCAM SJ11 Active HDR Upgraded 4K30FPS WiFi Action Cameras Touch Screen Stabilization 3.0 Remote Control Adjustable FOV 8X Zoom IPX8 Waterproof Underwater Camera with Helmet Bicycle Kits 3Hr Battery
SJCAM C100+ Mini WiFi Action Camera 4K30fps Pocket Wearable Body Camera, Magnetic APP Control, Underwater...SJCAM C100+ Mini WiFi Action Camera 4K30fps Pocket Wearable Body Camera, Magnetic APP Control, Underwater 98FT Waterproof Helmet Camera with Mount Kits 32G SD Card, Weighs 1oz, 2.4 * 1 * 0.6 inch
User reviews
Design
Ingress Protection (IP) rating
Unknown. Help us by suggesting a value.
The first number of the IP rating refers to protection against dust, while the second number refers to protection against liquid. E.g. a first number of 6 denotes that it is completely dustproof, and a second number of 7 denotes that the device can withstand full immersion in water.
has a touch screen
✖Sjcam SJ4000
You can operate the device easily, by pressing the screen with your fingers.
has an external memory slot
✔Sjcam SJ4000
The device has a standard memory slot (such as an SD or micro SD card slot) that enables you to extend the built-in internal storage with affordable memory modules, or easily retrieve data, such as photographs, from the memory card.
Has a dedicated bike mount
✔Sjcam SJ4000
With a dedicated bike mount you can attach the device to your handlebars, making it easier to see and to change the settings.
Has a display
✖Sjcam SJ4000
The device has an electronic display to present information to the user.
is weather-sealed (splashproof)
✖Sjcam SJ4000
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
is dustproof and water-resistant
✖Sjcam SJ4000
The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
has an accelerometer
✔Sjcam SJ4000
An accelerometer is a sensor used to measure the linear acceleration of a device. A common application is detecting when a device changes between vertical and horizontal positions.
internal storage
Unknown. Help us by suggesting a value.
The internal storage refers to the built-in storage space available in a device for system data, apps, and user-generated data. With a large amount of internal storage, you can save more files and apps on your device.
Features
Is compatible with Android
✔Sjcam SJ4000
It is compatible with a range of Android devices such as smartphones and tablets.
Is compatible with iOS
✔Sjcam SJ4000
It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch.
Bluetooth version
Unknown. Help us by suggesting a value.
Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.
has first-party support for live streaming
✖Sjcam SJ4000
A camera that supports live streaming can be used to broadcast video to certain platforms (such as Facebook, YouTube, etc.) via a first-party app.
Newer USB versions are faster and have better power management.
Has USB Type-C
✖Sjcam SJ4000
The USB Type-C features reversible plug orientation and cable direction.
has a remote control
✔Sjcam SJ4000
A remote control allows you to control the device remotely. The remote control can be included or optional.
has an HDMI output
✔Sjcam SJ4000
You can output high definition video and audio to a display. This could be through an HDMI port, Mini HDMI port, or a USB-C port that supports HDMI.
has GPS
✖Sjcam SJ4000
GPS enables global positioning, useful in map, geo-tagging or navigation apps.
Battery
Battery life
Unknown. Help us by suggesting a value.
The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.
battery power
900 mAh
Battery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.
charge time
Unknown. Help us by suggesting a value.
The time it takes to fully charge the battery.
has a removable battery
✔Sjcam SJ4000
The battery is removable and can be replaced by the user if broken.
has a rechargeable battery
✔Sjcam SJ4000
The battery can be recharged and used over again.
has a battery level indicator
✔Sjcam SJ4000
An indicator shows you when the device has low battery.
Supports fast charging
✖Sjcam SJ4000
Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.
Audio
More microphones result in better sound quality and enable the device to filter out background noise.
has a stereo microphone
✖Sjcam SJ4000
A stereo microphone allows to record audio files or movies in stereo without an external microphone.
has a microphone input
✖Sjcam SJ4000
A microphone port allows connecting external high-end or specialized microphones.
has a socket for a 3.5 mm audio jack
✖Sjcam SJ4000
With a standard mini jack socket, you can use the device with most headphones.
Optics
The number of megapixels determines the resolution of the images captured with the main camera. A higher megapixel count means that the camera is capable of capturing more details. However, the megapixel count is not the only important element determining the quality of an image.
has an adjustable field of view
✖Sjcam SJ4000
Cameras with an adjustable FOV allow users to set view angles depending on their needs. A wider FOV captures a larger visible area, but with fewer details. A more narrow field of view captures less but in more detail and is often used for recording content at a distance.
has built-in optical image stabilization
✖Sjcam SJ4000
Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.
sensor size
Unknown. Help us by suggesting a value.
The larger the sensor the more light the sensor captures yielding in better image quality.
With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
Has a dual-lens (or multi-lens) main camera
✖Sjcam SJ4000
A multi-lens camera captures two or more images and overlays them. This technology creates sharper images, especially in low light conditions, and allows you to use effects such as softening the background.
has a BSI sensor
✖Sjcam SJ4000
A BSI (backside illuminated) sensor is a camera image sensor which captures better quality images in poor lighting conditions, and offers better overall sharpness and image quality.
has a CMOS sensor
✔Sjcam SJ4000
CMOS image sensors are slowly replacing CCD sensors, due to reduced power consumption and better image quality. They can be very compact and cost relatively little to produce.
exposure time
Unknown. Help us by suggesting a value.
When the camera shutter is open for a long time, more light is absorbed by the sensor. You can use this slow shutter speed to produce vivid night time photography, or capture the trajectory of moving objects such as motorway traffic.
Videography
video recording (main camera)
1080 x 30 fps
The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.
field of view
170°
Field of view (FOV) is the part of the world that a device can view and record. A wider field of view allows you to capture more of the action.
Has timelapse function
✖Sjcam SJ4000
A timelapse shows a long passage of time sped up. A series of photographs taken from the same position over a long period is joined together to create a short video. It is great way to capture things like the setting sun, or clouds moving across the sky.
supports slow-motion video recording
✖Sjcam SJ4000
Slow-motion is an artistic video effect that makes time seem to go slower. It is achieved by recording a video at a higher frame-rate than the standard playback rate of 24fps or 30fps. Depending on camera capabilities, frame rates for slow-motion videos vary between 60fps and 960fps.
Has phase-detection autofocus for videos
✖Sjcam SJ4000
A phase-detection autofocus system is faster than a contrast detection autofocus system. Even when recording scenes with a lot of fast movements, the videos are sharp and clear.
has continuous autofocus when recording movies
✖Sjcam SJ4000
When recording movies they stay focussed and sharp.
has a 24p cinema mode
✖Sjcam SJ4000
24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.
movie bitrate
Unknown. Help us by suggesting a value.
The higher the movie recording bitrate the better the movie quality with more and crispier details and less compression artifacts.
shoots raw
✖Sjcam SJ4000
A raw image file contains minimally processed data from the image sensor. Raw files are so named because they are not yet processed and therefore are not ready to be printed or edited with a bitmap graphics editor.
Miscellaneous
minimum focal length
2.99 mm
A shorter minimum focal length allows you to get more of the scene in the photo, and offers a wider angle of view than longer focal lengths.
Price comparison
SJCAM SJ4000 4K30fps 40MP Action Camera WiFi Camera with Stabilization,Underwater 98ft Waterproof Camera ...SJCAM SJ4000 4K30fps 40MP Action Camera WiFi Camera with Stabilization,Underwater 98ft Waterproof Camera with Dual Batteries,170°FOV 5X Zoom,32G SD Card and Helmet Mount Accessories Kits
SJCAM Upgraded SJ4000 Action Camera Dual Screen 4K30FPS Ultra HD Underwater Waterproof Camera 170° Wide-A...SJCAM Upgraded SJ4000 Action Camera Dual Screen 4K30FPS Ultra HD Underwater Waterproof Camera 170° Wide-Angle WiFi Helmet Camera with 2 Batteries, SD Card and Accessories Kits for Motorcycle Riding
SJCAM SJ11 Active HDR Upgraded 4K30FPS WiFi Action Cameras Touch Screen Stabilization 3.0 Remote Control ...SJCAM SJ11 Active HDR Upgraded 4K30FPS WiFi Action Cameras Touch Screen Stabilization 3.0 Remote Control Adjustable FOV 8X Zoom IPX8 Waterproof Underwater Camera with Helmet Bicycle Kits 3Hr Battery
SJCAM C100+ Mini WiFi Action Camera 4K30fps Pocket Wearable Body Camera, Magnetic APP Control, Underwater...SJCAM C100+ Mini WiFi Action Camera 4K30fps Pocket Wearable Body Camera, Magnetic APP Control, Underwater 98FT Waterproof Helmet Camera with Mount Kits 32G SD Card, Weighs 1oz, 2.4 * 1 * 0.6 inch
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