Best Convertible Car Seat: Cybex Sirona M

If the Jetson's had a car seat, this high-tech newcomer would be it.
save article
profile picture of The Bump Editors
Updated September 17, 2020
Cybex Sirona M
Image: Cybex
We have included third party products to help you navigate and enjoy life’s biggest moments. Purchases made through links on this page may earn us a commission.

SensorSafe technology debuted two years ago to help prevent infant hot car deaths; the latest iteration goes several steps further to thwart a variety of car seat accidents, misuse and safety concerns. The Cybex Sirona M is currently the only car seat on the market to incorporate the 2.0 technology, making it one of the safest (and most high-tech) options available to parents right now—but that’s hardly the only reason this seat impressed us.

What we love

  • The Sensorsafe 2.0 app not only alerts you if you’ve accidentally left your little one in the car—but also pings you if your child unbuckles themselves while the vehicle is in motion, the backseat temperature is too hot or cold, or your child has been sitting too long
  • One of the keys to car seat safety is a correct installation; with Sensorsafe, you can enter the make and model of your car and it will provide how-to videos and tips
  • With a 12-position headrest and a weight capacity up to 65 pounds, the Sirona M can function as your sole car seat for years


A car seat designed to be as safe, easy-to-use, and versatile as possible—what more could you want?

Buy it: $330


Clek Fllo

Nuna Rava

save article

Next on Your Reading List

Balance Bike Hero
The Best Balance Bikes for Little Riders
By Martina Garvey
toddler hand playing with wooden toy car
15 Chic Wooden Toys for Some Good Old-Fashioned Fun
By Megan Cahn
Baby Ring Sling Hero
The Best Ring Sling Baby Carrier Styles to Keep Baby Close
By Danielle Halibey
mother holding sleeping baby
The Best Humidifiers to Keep Baby Happy and Healthy
By Emma O'Regan-Reidy
man throwing baby in air with amazon prime day logo
Best Amazon Prime Day Baby Deals Every Parent Should Know About
By Emma O'Regan-Reidy
Best Stroller Accessories-hero
Standout Stroller Accessories, From Rain Covers to Snack Trays
By Emma O'Regan-Reidy
Stroller Organizer-hero
The Best Stroller Organizers to Carry Travel Essentials
By Martina Garvey
toddler using paint to make art at table
15 Genius Kids' Art Frames and Displays to Repurpose and Store Your Kid’s Artwork
By Korin Miller
FSA- and HSA-eligible Hero
What Is FSA-Eligible? 19 Baby Items You Can Buy With Pre-Tax Dollars
By Emma O'Regan-Reidy
happy little girl looking up and holding purple umbrella
13 Kids’ Umbrella Styles to Keep You Covered on Rainy Days
By Emma O'Regan-Reidy
mom and baby sitting on couch at home
24 First-Time Mom Must-Haves You Didn’t Know You Needed
By Martina Garvey
Spit Happens: 8 Best Baby Burp Cloths
By Martina Garvey
best sleep sacks-hero
The 12 Best Sleep Sacks for Sweet Dreams
By Emma O'Regan-Reidy
Kids Folding Chairs-hero
10 Best Kids’ Camping Chairs for Adventures in the Great Outdoors
By Emily Platt
Toddler Lunch Boxes-hero
10 Best Lunch Boxes for Toddlers and Kids
By Anna Lane
Crayons Hero
8 Best Toddler Crayons to Really Draw Kids in
By Christin Perry
mother shopping on laptop with newborn baby beside her on the couch
Prime Day New Parent and Baby Essentials Under $50
By Martina Garvey
toddler playing with activity center table
The 9 Best Baby Activity Centers, Tables and Chairs
By Emma O'Regan-Reidy
nursery with glowing nightlight
7 Best Kids' Night Lights for a Restful Night's Sleep
By Danielle Halibey
two small children enjoying popsicles outside in the summer
27 Can't-Miss Fourth of July Sales for Babies, Kids and Parents
By Wyndi Kappes
Article removed.
Article removed.
Name added. View Your List