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An all-in-one car seat is used rear-facing, then forward-facing with a harness, then as a booster, so one seat can cover most of childhood. The best one for you depends on four things: how long your child can stay rear-facing in it, the UAS weight limit, whether it fits your back seat, and when it expires. Here are six we carry, compared by the limits in their Canadian manuals.
The six seats at a glance
| Seat | Rear-facing | Forward-facing harness | Booster | Price |
|---|---|---|---|---|
| Evenflo Gold Revolve360 Extend | 4–50 lb, 17–48 in | 30–65 lb, 35–49 in, at least 2 years | 40–120 lb, 44–57 in, at least 5 years | $499.97 |
| Maxi-Cosi Pria All-in-One | 4–40 lb | Up to 65 lb | Up to 100 lb | $549.99 |
| Maxi-Cosi Kani 4-in-1 | 5–40 lb, 19–40 in | 22–65 lb, 29–49 in | 40–100 lb; high-back 43–52 in, backless 43–57 in | $599.99 |
| Peg Perego Primo Viaggio All-in-One | 5–40 lb, up to 47 in | 22–65 lb, up to 49 in | 40–120 lb, up to 63 in | $649.99 |
| Maxi-Cosi Andi 360 | 5–40 lb, 19–40 in | 22–65 lb, up to 49 in | 40–100 lb, 43–52 in | $749.99 |
| Cybex Callisto G 360 | 4–40 lb, under 43.3 in standing | 26.5–65 lb, 33–49.2 in, at least 1 year | 40–120 lb, 44–57 in, at least 4 years | $999.95 |
Limits are from each seat's Canadian manual as quoted on our product pages. Your child has to meet every limit for a stage, including height and head position, not just weight. Prices are in CAD and were current when we wrote this.
Installation, size and expiry
| Seat | UAS child-weight limit | Width and seat weight | Features | Expiry |
|---|---|---|---|---|
| Revolve360 Extend | 30 lb in either harness mode | 19.8 in wide, 29.6 lb | Rotates; SensorSafe chest clip | 10 years |
| Pria All-in-One | See manual | Not listed | Anti-rebound bar rear-facing | See label |
| Kani 4-in-1 | 45 lb | Slim, designed to fit three across in most back seats | Converts to a backless booster | 10 years from manufacture |
| Primo Viaggio All-in-One | 35 lb rear-facing, 40 lb forward-facing | Fits three across in most vehicles, 25.65 lb | Extendable anti-rebound bar for 2 in more legroom | See label |
| Andi 360 | See manual | Not listed | Rotates rear- and forward-facing; base stays attached | See label |
| Callisto G 360 | 30 lb rear-facing, 35 lb forward-facing | 19.5 in wide, 35 lb | Rotates; anti-rebound base; SensorSafe chest clip | 10 years from manufacture |
Above the UAS limit, you install with the vehicle seat belt instead, following the manual. When a seat is forward-facing with its harness, always use the tether strap too. The Callisto G 360 also uses the tether rear-facing, while the Kani's manual says not to use it rear-facing, so follow your seat's own instructions. Our car seat terms guide explains UAS, tethers and anti-rebound bars.
Picks by what matters to you
Rear-facing the longest
The Evenflo Revolve360 Extend has the highest rear-facing weight limit here, 50 lb, with a height limit of 48 in. It also rotates toward the door for loading, and it's the lowest price in this list. Our Revolve360 Extend review covers it in more detail.
A narrow back seat or three across
The Maxi-Cosi Kani and Peg Perego Primo Viaggio All-in-One are both designed to fit three across in most vehicles. The Kani also has the highest UAS limit here, 45 lb, so you can keep using the lower anchors longer, and it converts to a backless booster at the end. The Primo Viaggio's anti-rebound bar extends for more legroom rear-facing. Measure your back seat and check each seating position before you count on three across. Our Kani guide covers who it suits.
A rotating seat
Three of these turn toward the door, which makes buckling easier, especially rear-facing: the Revolve360 Extend, Maxi-Cosi Andi 360 and Cybex Callisto G 360. The Callisto adds an anti-rebound base and a tether in both directions, and is the heaviest at 35 lb. Rotation is only for loading: the Revolve and Callisto manuals say to lock the seat rear-facing or forward-facing before every drive, even when it's empty in the Callisto's case. Our Callisto G 360 guide has more on it.
A simpler seat with an anti-rebound bar
The Maxi-Cosi Pria All-in-One doesn't rotate, but it has an anti-rebound bar for rear-facing and a booster mode up to 100 lb.
Before you buy an all-in-one
- Check the date of manufacture. The Kani and Callisto expire 10 years after they were made, not after you buy them, and the Revolve360 Extend lists a 10-year expiry too. A seat that's been on a shelf for a while will expire sooner. Our car seat expiry guide shows where to find the date.
- It isn't a carrier. An all-in-one stays in the car and doesn't click onto a stroller. If you want to carry your newborn in from the car, start with an infant seat; our infant seat vs convertible guide compares the two routes.
- Weight matters if you move it. Of the seats that list a weight, the Primo Viaggio is 25.65 lb and the Callisto G 360 is 35 lb, so moving one between cars isn't quick.
- Keep using each stage until it's outgrown. The Kani and Callisto manuals, for example, say to keep your child rear-facing until they reach the seat's rear-facing limit, and the Kani's says to use the harness until it's outgrown before moving to the booster.
- In winter, an all-in-one stays in a cold car, so warm the car first and add warmth over the harness, not under it. See our winter car seat routine.
For convertible seats that go rear- and forward-facing but not to a booster, see our convertible car seat guide.
Try it in your car
Fit in your own vehicle is the part a spec table can't tell you. We offer car seat installation and check-ups by appointment at our Richmond and Burnaby stores, free for seats bought from us and $50 for other seats; our guide to car seat check appointments explains what to bring. Call ahead to ask which of these seats we have on display, or browse all our car seats online.
Neo W. is a BCAA-certified Child Passenger Safety Educator at baby enRoute (BCAA CPS Educator II Course).
