Diono Radian 3R SafePlus vs Evenflo All4Stages Slim Plus Canopy 4-in-1

The Radian 3R SafePlus rear-faces up to 50 lb, versus 40 lb. The All4Stages Slim Plus Canopy 4-in-1 is 0.1 in narrower.

Only the differences are shown.

Diono Radian 3R SafePlusEvenflo All4Stages Slim Plus Canopy 4-in-1
TypeAll-in-oneAll-in-one
List price$259.99$259.99
Rear-facing weight4–50 lbHighest rear-facing limit4–40 lb
Rear-facing height18–44 in17–43 in
Forward-facing weight26.5–65 lb30–65 lb
Forward-facing heightNot listed35–49 in
Booster weight40–120 lb40–120 lb
Booster heightNot listed44–60 in
Seat weight29.3 lb25.2 lbLightest
Width17 in16.9 inNarrowest
Head ruleNot listedRear-facing: Top of child's head is at least 2.5 cm (1 in.) or more below the top of the child restraint headrest. Forward-facing: Tops of the child's ears are at or below the top of the child restraint headrest.
Newborn insertNot listedOptional head pillow and body pillow (rear-facing); no weight limit stated
InstallationNot listedSecureTight
Load legNot listedNo
Anti-rebound barYesNo
RotatesNot listedNo
Aircraft labelNot listedCertified for aircraft, per the maker
Expires after10 yearsNot listed

Diono Radian 3R SafePlus

All-in-one 3-across seat from Diono; the maker describes the SafePlus version as having 15 upgrades over the Radian 3R.

  • Maker states it fits 3-across and includes a steel anti-rebound bar
  • Maker lists a 12-position headrest
  • Maker lists 'FAA approved for airline use'

Evenflo All4Stages Slim Plus Canopy 4-in-1

Evenflo slim all-in-one seat with rear-facing, forward-facing harness, high-back booster and no-back booster modes. Evenflo lists SKU CS400122526 (Bodie Gray), a 12-position headrest and SecureTight installation.

  • Four modes in one seat
  • Assembled width of 16.9 in per Evenflo
  • Evenflo lists GREENGUARD Gold Certified
  • Evenflo page links only a Spanish manual
  • Evenflo lists a 90-day limited warranty
Ask the meadow

Radian 3R SafePlus or All4Stages Slim Plus Canopy 4-in-1?

Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.

Which is easier to travel with?

Radian 3R SafePlus: 29.3 lb. All4Stages Slim Plus Canopy 4-in-1: certified for planes, 25.2 lb.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.