Britax Safe-n-Sound Kid Guard Review





Booster Seat




Booster mode: 4-10yrs (approx.)


H 75-88 x 
W 47-57 x 
D 38-44.5 cm

Height markers

Upper height marker (stop use): 54.2cm


9 height adjustments
Expandable side wings

Other features

Active Head Restraint
SecureGuard anti-submarining device offers 4 points of safety


5 years on Safe-n-Sound car seat moulding, harness and fittings
2 years on softgoods supplied with Safe-n-Sound car seat at the time of purchase (including accessories)

With extended warranty:
10 years on Safe-n-Sound car seat moulding, harness and fittings
5 years on Thermo5 soft goods.

CREP safety rating

Protection rating

Booster mode

Ease of use rating

Booster mode​

Pros and cons


+ Can be used to 10 years
+ Additional 4th point of contact safety
+ Adjustable height, width and depth


– Expensive for a booster seat (but cheap compared to harnessed seats)
– Standard fabric only

Bottom line:

The Britax Safe-n-Sound Kid Guard is the latest booster seat from Britax and can be adjusted in height, width and depth to fit your growing child. Britax’s Secureguard does help by effectively creating a 4th point of contact by connecting the lap belt to a crotch strap.

Additionally, Active Head Restraint head protection supports safety in the event of a side collision. A booster seat does require the use of the car’s lap-sash belt so proper fitting is essential every time your child sits in the car. If you are looking for safer alternatives consider harnessed car seats.

Who this is for:

Parents looking for a premium booster seat with additional safety features (AHR and Secureguard)

Not sure which booster seat is right for your child? Check out our Car Seat Selector.

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