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JVC Everio GZ-MG 21

alaTest has collected and analyzed 296 reviews of JVC Everio GZ-MG 21. The average rating for this product is 3.8/5, compared to an average rating of 4.0/5 for other Camcorders for all reviews. Comments about the design and price are on the whole positive. The size and portability also get good feedback, but there are some less positive reviews about the viewfinder and battery. Opinions are divided on the image quality.

usability, portability, size, price, design

battery, viewfinder

We analyzed user and expert ratings, product age and more factors. Compared to other Camcorders the JVC Everio GZ-MG 21 is awarded an overall alaScore™ of 76/100 = Good quality.

See all JVC Camcorders

Review analysis

(Based on 296 reviews)

Expert Reviews  

User Reviews  

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Showing 1 - 168 of 231 Show Reviews: in English | in other languages (57)

Consumer review ( review summary for JVC Everio GZ-MG 21


alaTest has collected and analyzed 158 user reviews of JVC Everio GZ-MG 21 from The average user rating for this product is 3.7/5, compared to an average user rating of 3.9/5 for other Camcorders on People really like the design and zoom. The price and portability are also mentioned favorably, whereas many are negative about the durability and image quality.

usability, portability, price, zoom, design

image quality, durability

81% of the reviews on give this product a positive rating.

This summary is based on the products: JVC Everio GZMG21 20GB HDD Digital Media Camcorder with 32x Optical ZoomJVC Everio GZMG21 20GB HDD Digital Media Camcorder with 32x Optical Zoom

Dec, 2018

Expert review by : Will Greenwald (

JVC Everio GZ-MG21 review


main content Hard drive camcorders seem like a great idea. A tiny hard drive in a small camcorder case can record hours upon hours of video without having to switch out a tape or a DVD. Unfortunately, JVC's execution falls short; just like its nearly...

Light and tiny; many hours of recording time.

Poor video quality; awkward control scheme; image stabilization is a joke; not for big hands.

The JVC GZ-MG21 is a nice idea, but its poor video quality and irritating control scheme make conventional camcorders seem a lot more appealing.

May, 2006

Expert review by : Which? (

Expert Review

  (Rating Hidden)
Jan, 2008

Expert review by : Will Greenwald (

main content


JVC Everio GZ-MG21

Light and tiny; many hours of recording time.

Poor video quality; awkward control scheme; image stabilization is a joke; not for big hands.

The JVC GZ-MG21 is a nice idea, but its poor video quality and irritating control scheme make conventional camcorders seem a lot more appealing.

May, 2006

Expert review by : (

JVC Everio-G GZ-MG21 Hard Drive Digital Camcorder Review


No Viewfinder I am always a huge advocate of using the viewfinder on your camcorder. Viewfinders cut down on battery power, and can make it easier to see what you’re recording in bright light situations. The GZ-MG21 does not have a viewfinder, making...

May, 2008

Consumer review (



Lightweight, easy to use, good reproduction, easy to edit and transfer to DVD, more than sufficient memory.

Battery life is short, which means that you need several batteries.

Jul, 2007

Consumer review (



My first camcorder. Very impressed by lightweight and ease of use, makes you more inclined to use it or keep it handy in your pocket.

Standard battery doesn't last too long, a car charger would be handy.

Jun, 2007

Consumer review (




Too much wind noise on microphones

May, 2007

Consumer review (



Excellent product for the money for the average family user.

The battery life of the battery supplied is not the best for long term use.

May, 2007

Consumer review (



easy to use,light and small

if any battery life

Mar, 2007

Consumer review (

JVC Everio GZ-MG21: all zoom but no power


I recently upgraded my camcorder from a sony one that took 8mm tapes to the JVC hard drive 20gb. The JVC is very compact it has the video and it also has a built in digital camera which is an added bonus the camera isnt excellent but its just as good...

no more tapes

short battery life

Mar, 2007

Product Specifications

JVC is one of the world's leading developers and manufacturers of sophisticated audio, video and related software products. Building upon a wealth of technologies the company is moving decisively to offer appropriate solutions for the multimedia age. To remain at the forefront of the audiovisual industry in the 21st century, JVC is marshalling its resources to create the ultimate in appealing, cost-competitive products. PRODUCT FEATURES: Multi-Language On-Screen Menu; Hard Disk Protection with Drop Detection and Floating Suspension; Auto and manual focus; Digital Image Stabilizer; Program AE (Sepia / Black & White / Twilight / Classic Film / Strobe / Snow / Spotlight / Fixed Shutter / Sports); Backlight/Spotlight compensation; White Balance (Auto, MWB, Fine, Cloud, Halogen); Self-Timer; Motor-Drive Shooting; Macro Shooting as close as 5cm with zoom set to Wide; Tele-macro Shooting Distance: up to 40cm; Playlist Video Clip Playback and Slide Show Still Playback; Playback Scene Transitions (White Fader, Black Fader, B&W Fader, Corner Wipe, Window Wipe, Slide Wipe, Door Wipe, Scroll Wipe, Shutter Wipe).

Audio Input

Microphone Operation Mode:Stereo
Microphone Technology:Electret condenser


Battery Form Factor:Manufacturer specific
Manufacturer Battery Name:JVC BN-VF707U


3D: No
Camcorder type:Handheld camcorder
On Screen Display (OSD): Yes
On Screen Display (OSD) languages:CHI (TR), ENG, ESP, FRE, JPN, KOR, POR
Self-timer delay:2,10


Colour of product:Silver

Digital Storage Media

Type:Hard disc drive

Dimensions & Weight



Built-in Display: Yes
Display diagonal:6.35
Display resolution (numeric):112000

Display (Projector)

Diagonal Size:2.5in
Diagonal Size (metric):6.4cm
Display Form Factor:Rotating
Technology:TFT active matrix
Type:LCD display

Exposure Parameters

Shooting Programs:Snow / Sports mode / Spotlight / Twilight mode


Packaged Quantity:1
Product Line:JVC Everio

Image sensor

Effective megapixels (image):0.34
Effective megapixels (movie):0.34
Optical sensor size:25.4 / 6
Sensor Type:CCD
Total MegaPixels:0.68 / 0.8

Lens System

Digital Zoom:800
Filter Size:3.05
Focal length range (f-f):2.3 - 73.6
Image stabilizer: Yes
Interchangeable lens: No
Lens Aperture:F/2.0-4.5
Max Focal Length:73.6mm
Maximum aperture number:4.5
Min Focal Length:2.3mm
Minimum aperture number:2
Optical Zoom:32
Optical Zoom:32 / 33
Type:Zoom lens

Light exposure

ISO sensitivity:100, 200

Optical Sensor

Camcorder Effective Still Resolution:0.4Megapixel
Camcorder Effective Video Resolution:400Kpix
Camcorder Sensor Resolution:800Kpix
Optical Sensor Size:1/6"
Optical Sensor Size (metric):4.2 mm ( 1/6" ) / 4.2 mm ( 1/6 )
Optical Sensor Type:CCD
Sensor Qty:1CCD

Optical System

Image Stabiliser:Electronic

Other features

Lens system:F2.0 - F4.5
Power consumption (typical):3.9 / 6.5

Packaging Content

AC adapter included: Yes
Batteries included: Yes
Cables included:AV, USB
Handheld remote control: Yes

Ports & interfaces

DC-in jack: Yes
PictBridge: Yes
S-Video Out: Yes
USB 2.0 ports quantity:1


Shutter speed (photo):1/2 - 1/500
Shutter speed (video):1/2 - 1/4000

Still image

Image formats supported:JPG
Maximum image resolution:640 x 480


Camcorder media type:HDD, Memory card
Camcorder tape type: No
Compatible memory cards:SD
Disc types supported: No
Internal storage capacity:20


Maximum Video Resolution:720 x 480
Video formats supported:MPEG2

Video Input

Analogue Video Format:PAL
Digital Video Format:MPEG-2
Digital Zoom:800
Faders:Black & white fader / Black fader / Corner wipe / Door wipe / Scroll wipe / Shutter wipe / Slide wipe / White fader / Window wipe
Media Type:Hard disc drive
Shooting Modes:Digital photo mode
Special Effects:Black & White / Classic Film / Sepia / Snow / Strobe
Still Image Format:JPEG


Viewfinder Type: None

Weight & Dimensions

Depth:10.9 / 6.9
Height :10.9 / 6.9