Britax One4Life ClickTight All-in-one 5–120 lb 50 lb 65 lb 120 lb 19.5 in 30 lb 10 yr Certified $439.99 for the Britax One4Life ClickTight All-in-One Car Seat on Amazon Britax One4Life Slim All-in-one 5–120 lb 50 lb 65 lb 120 lb – Not published 28 lb 10 yr Certified $429.99 for the Britax One4Life Slim All-in-One Car Seat on Amazon Britax Grow With You ClickTight Harness-to-booster 30–120 lb – Not published 65 lb 120 lb – Not published 25 lb 9 yr Certified $359.99 for the Britax Grow With You ClickTight Harness-2-Booster Car Seat on Amazon Britax Grow With You Harness-to-booster 30–120 lb – Not published 65 lb 120 lb – Not published 23 lb 9 yr Certified $239.99 for the Britax Grow With You Harness-2-Booster Car Seat on Amazon Cybex Callisto G 360 Rotating all-in-one 4–120 lb 40 lb 65 lb 120 lb 19.5 in 35 lb 10 yr Certified $699.95 for the Cybex Callisto G 360 on Amazon Cybex Callisto G 360 Select Rotating all-in-one 4–120 lb 40 lb 65 lb 120 lb 19.5 in 35 lb 10 yr Certified $604.45 for the Cybex Callisto G 360 Select on Amazon Cybex Callisto T 360 Rotating all-in-one 4–120 lb 50 lb 65 lb 120 lb 19.5 in 35 lb 10 yr Certified $799.95 for the Cybex Callisto T 360 on cybex-online.com Diono Radian 3QX SafePlus All-in-one 4–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3QXT SafePlus All-in-one 4–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3QXT FirstClass SafePlus (Radian 3QXT+) All-in-one 4–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3R SafePlus All-in-one 4–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3RXT SafePlus All-in-one 4–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3RXT SafePlus Max All-in-one 4–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3R All-in-one 5–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3RX All-in-one · discontinued 5–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Diono Radian 3RXT All-in-one · discontinued 5–120 lb 50 lb 65 lb 120 lb – Not published – Not published 10 yr Certified – No current price Evenflo Revolve360 Extend Rotating all-in-one 4–120 lb 50 lb 65 lb 120 lb 19.8 in 29.6 lb – Not published Certified $439.00 for the Evenflo Revolve360 Extend All-in-One Rotating Car Seat on Amazon Evenflo Revolve360 Extend All-in-One Rotating Car Seat with SensorSafe Rotating all-in-one 4–120 lb 50 lb 65 lb 120 lb 19.8 in 32.4 lb 10 yr Certified $399.99 for the Evenflo Revolve360 Extend All-in-One Rotating Car Seat with SensorSafe on evenflo.com Evenflo Revolve360 Rotating all-in-one 4–120 lb 40 lb 65 lb 120 lb 19.8 in 29.6 lb – Not published Certified $349.99 for the Evenflo Revolve360 Rotating All-In-One Car Seat on evenflo.com Evenflo All4Stages Slim 4-in-1 All-in-one 4–120 lb 40 lb 65 lb 120 lb 16.9 in 23.6 lb – Not published Certified $229.99 for the Evenflo All4Stages Slim 4-in-1 Convertible Car Seat on Amazon Evenflo All4Stages Slim Plus Canopy 4-in-1 All-in-one 4–120 lb 40 lb 65 lb 120 lb 16.9 in 25.2 lb – Not published – Not stated $259.99 for the Evenflo All4Stages Slim Plus Canopy 4-in-1 Convertible Car Seat on Amazon Graco 4Ever DLX 4-in-1 All-in-one 4–120 lb 40 lb 65 lb 120 lb 21.5 in 23 lb 10 yr – Not stated $319.99 for the Graco 4Ever DLX 4-in-1 Car Seat on Amazon Graco 4Ever DLX Slim 4-in-1 All-in-one 4–120 lb 40 lb 65 lb 120 lb 18.9 in 27.5 lb 10 yr – Not stated $369.99 for the Graco 4Ever DLX Slim 4-in-1 Car Seat on Amazon Graco 4Ever DLX Grad 5-in-1 Slim All-in-one 4–120 lb 40 lb 65 lb 120 lb 18 in 24.1 lb 10 yr – Not stated – No current price Graco 4Ever 4-in-1 Convertible Car Seat featuring TrueShield Technology All-in-one 4–120 lb 40 lb 65 lb 120 lb 21.5 in 24 lb 10 yr – Not stated – No current price Graco 4Ever Extend2Fit 4-in-1 All-in-one 4–120 lb 50 lb 65 lb 120 lb 21.5 in 25.99 lb 10 yr – Not stated $303.99 for the Graco 4Ever Extend2Fit 4-in-1 Car Seat on gracobaby.com Graco Nautilus 2.0 LX 3-in-1 Harness Harness-to-booster 26.5–120 lb – Not published 65 lb 120 lb 19.4 in 17.4 lb 10 yr – Not stated $219.99 for the Graco Nautilus 2.0 LX 3-in-1 Harness Booster Car Seat on Amazon Graco Nautilus 2.0 3-in-1 Harness Harness-to-booster 26.5–120 lb – Not published 65 lb 120 lb 19.4 in 17.8 lb 10 yr – Not stated $189.99 for the Graco Nautilus 2.0 3-in-1 Harness Booster Car Seat on gracobaby.com Peg Perego Primo Viaggio All-in-one 5–120 lb 50 lb 65 lb 120 lb – Not published 25.65 lb 12 yr (longest usable life in this table) Certified $439.99 for the Peg Perego Primo Viaggio All in One on Amazon Graco Grows4Me 4-in-1 All-in-one 5–110 lb 40 lb 65 lb 110 lb 21.5 in 22.5 lb 10 yr – Not stated $229.99 for the Graco Grows4Me 4-in-1 Car Seat on Amazon Nuna EXEC next All-in-one 5–110 lb 50 lb 65 lb 110 lb – Not published 26.8 lb 10 yr Certified $720.00 for the Nuna EXEC next all-in-one car seat on nunababy.com Nuna LUMN combination Harness-to-booster 30–110 lb – Not published 65 lb 110 lb 18.25 in 26.2 lb 10 yr Certified $680.00 for the Nuna LUMN combination car seat on nunababy.com Chicco Fit3x ClearTex Ultra-Slim All-in-one 5–100 lb 40 lb 65 lb 100 lb 16.7 in (narrowest in this table) 21 lb – Not published Certified – No current price Chicco OneFit LX ClearTex All-in-one 5–100 lb 40 lb 65 lb 100 lb 19 in 25.5 lb 10 yr Certified $319.99 for the Chicco OneFit LX ClearTex All-in-One Car Seat on Amazon Chicco OneFit Max ClearTex All-in-one 5–100 lb 40 lb 65 lb 100 lb 19.5 in 27 lb 10 yr Certified $303.99 for the Chicco OneFit Max ClearTex All-in-One Car Seat on Amazon Chicco MyFit Harness + Harness-to-booster 26.5–100 lb – Not published 65 lb 100 lb 17.5 in 25 lb 8 yr Certified – No current price Chicco MyFit ClearTex Harness + Harness-to-booster 26.5–100 lb – Not published 65 lb 100 lb 17.5 in 25 lb 8 yr Certified $239.99 for the Chicco MyFit ClearTex Harness + Booster Car Seat on Amazon Chicco MyFit Air ClearTex Harness + Harness-to-booster 26.5–100 lb – Not published 65 lb 100 lb 17.5 in 25 lb 8 yr Certified – No current price Cosco Easy Elite Slim All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $99.00 for the Cosco Easy Elite Slim All-in-One Convertible Car Seat on coscokids.com Cosco Finale 2-in-1 Harness-to-booster 40–100 lb – Not published 65 lb 100 lb – Not published – Not published 10 yr Certified $49.97 for the Cosco Finale 2-in-1 Booster Car Seat on coscokids.com Cosco Finale DX 2-in-1 Harness-to-booster 40–100 lb – Not published 65 lb 100 lb – Not published – Not published 10 yr Certified $74.98 for the Cosco Finale DX 2-in-1 Booster Car Seat on Amazon Evenflo Symphony Extend Breeze 3-in-1 All-in-one 4–100 lb 50 lb 65 lb 100 lb 18.5 in 17 lb – Not published – Not stated $279.99 for the Evenflo Symphony Extend Breeze 3-in-1 Convertible Car Seat on evenflo.com Graco Turn2Me 3-in-1 Rotating all-in-one 4–100 lb 40 lb 65 lb 100 lb 19.13 in 30 lb 10 yr Certified $399.99 for the Graco Turn2Me 3-in-1 Rotating Car Seat on Amazon Graco Extend2Fit 3-in-1 All-in-one 4–100 lb 50 lb 65 lb 100 lb 19 in 20.61 lb 10 yr – Not stated $269.99 for the Graco Extend2Fit 3-in-1 Car Seat on Amazon Graco Extend2Fit 3-in-1 Car Seat featuring Anti-Rebound Bar All-in-one 4–100 lb 50 lb 65 lb 100 lb 19 in 21.9 lb 10 yr Certified $339.99 for the Graco Extend2Fit 3-in-1 Car Seat featuring Anti-Rebound Bar on gracobaby.com Graco SlimFit3 LX 3-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb 16.7 in (narrowest in this table) 19.2 lb 10 yr – Not stated $299.99 for the Graco SlimFit3 LX 3-in-1 Car Seat on Amazon Graco SlimFit 3-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb 19.9 in 19.47 lb 10 yr – Not stated $229.99 for the Graco SlimFit 3-in-1 Car Seat on Amazon Graco SlimFit LX 3-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb 19.9 in 21.5 lb 10 yr – Not stated $229.99 for the Graco SlimFit LX 3-in-1 Car Seat on gracobaby.com Graco TriRide 3-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb 19 in 18.45 lb 10 yr – Not stated $199.99 for the Graco TriRide 3-in-1 Car Seat on Amazon Graco TrioGrow SnugLock 3-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb 19 in 18.92 lb 10 yr – Not stated $199.99 for the Graco TrioGrow SnugLock 3-in-1 Car Seat on gracobaby.com Graco Tranzitions 3-in-1 Harness Harness-to-booster 26.5–100 lb – Not published 65 lb 100 lb 19 in 14 lb 7 yr – Not stated $139.99 for the Graco Tranzitions 3-in-1 Harness Booster on Amazon Maxi-Cosi Andi 360 Rotating all-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 40.52 lb 10 yr No $449.99 for the Maxi-Cosi Andi 360 Rotating All-in-One Convertible Car Seat on Amazon Maxi-Cosi Sela All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 27.25 lb 10 yr Certified $449.99 for the Maxi-Cosi Sela All-in-One Convertible Car Seat on Amazon Maxi-Cosi Kani 4-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 23.2 lb 10 yr Certified $379.99 for the Maxi-Cosi Kani 4-in-1 Convertible Car Seat on Amazon Maxi-Cosi Pria Max+ All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 16.5 lb 10 yr Certified $329.99 for the Maxi-Cosi Pria Max+ All-in-One Convertible Car Seat on Amazon Maxi-Cosi Pria Max All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 16.8 lb 10 yr Certified $329.99 for the Maxi-Cosi Pria Max All-in-One Convertible Car Seat on Amazon Maxi-Cosi Pria All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 16.5 lb 10 yr Certified $269.99 for the Maxi-Cosi Pria All-in-One Convertible Car Seat on Amazon Maxi-Cosi Petra All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published 14.75 lb 10 yr Certified $229.99 for the Maxi-Cosi Petra All-in-One Convertible Car Seat on Amazon Safety 1st Turn and Go 360 Rotating all-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr No $329.99 for the Safety 1st Turn and Go 360 Rotating All-in-One Convertible Car Seat on Amazon Safety 1st Turn and Go 360 DLX Rotating all-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr No $249.99 for the Safety 1st Turn and Go 360 DLX Rotating All-in-One Convertible Car Seat on safety1st.com Safety 1st Turn and Go 360 ST Rotating all-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr No $249.99 for the Safety 1st Turn and Go 360 ST Rotating All-in-One Convertible Car Seat on safety1st.com Safety 1st Disney Baby Turn and Go 360 Rotating all-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published – Not published – Not stated $399.99 for the Safety 1st Disney Baby Turn and Go 360 Rotating All-in-One Convertible Car Seat on Amazon Safety 1st Grow and Go All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $139.98 for the Safety 1st Grow and Go All-in-One Convertible Car Seat on Amazon Safety 1st Disney Baby Grow and Go All-in-One Convertible Car Seat (CC411) All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $219.99 for the Safety 1st Disney Baby Grow and Go All-in-One Convertible Car Seat (CC411) on Amazon Safety 1st Disney Baby Grow and Go All-in-One Convertible Car Seat (CC253) All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $239.98 for the Safety 1st Disney Baby Grow and Go All-in-One Convertible Car Seat (CC253) on Amazon Safety 1st Grow and Go Sprint All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published – Not published – Not stated $99.00 for the Safety 1st Grow and Go Sprint All-in-One Convertible Car Seat on safety1st.com Safety 1st Grow and Go Extend 'n Ride LX All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $209.99 for the Safety 1st Grow and Go Extend 'n Ride LX All-in-One Convertible Car Seat on Amazon Safety 1st QuickFit All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $99.98 for the Safety 1st QuickFit All-in-One Convertible Car Seat on safety1st.com Safety 1st TriFit All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $129.00 for the Safety 1st TriFit All-in-One Convertible Car Seat on safety1st.com Safety 1st TriMate All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published – Not published – Not stated $149.99 for the Safety 1st TriMate All-in-One Convertible Car Seat on Amazon Safety 1st Crosstown All-in-one 5–100 lb 40 lb 65 lb 100 lb 19.5 in – Not published 10 yr Certified $129.99 for the Safety 1st Crosstown All-in-One Convertible Car Seat on Amazon Safety 1st Disney Baby Easy Elite Slim All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $139.99 for the Safety 1st Disney Baby Easy Elite Slim All-In-One Convertible Car Seat on safety1st.com Safety 1st EverSlim 4-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published – Not published – Not stated $229.99 for the Safety 1st EverSlim 4-in-1 Convertible Car Seat on Amazon Safety 1st Disney Baby EverSlim 4-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $259.99 for the Safety 1st Disney Baby EverSlim 4-in-1 Convertible Car Seat on Amazon Safety 1st SlimRide 4-in-1 All-in-one 5–100 lb 40 lb 65 lb 100 lb – Not published – Not published 10 yr Certified $199.99 for the Safety 1st SlimRide 4-in-1 Convertible Car Seat on safety1st.com Safety 1st Grand 2-in-1 Harness-to-booster 40–100 lb – Not published 65 lb 100 lb – Not published – Not published – Not published – Not stated $79.99 for the Safety 1st Grand 2-in-1 Booster Car Seat on Amazon Safety 1st Boost-and-Go Essential 3-in-1 Harness-to-booster 30–100 lb – Not published 65 lb 100 lb – Not published – Not published – Not published – Not stated – No current price Safety 1st Comfort Ride 3-in-1 Harness-to-booster 30–100 lb – Not published 65 lb 100 lb – Not published – Not published 10 yr Certified $84.00 for the Safety 1st Comfort Ride 3-in-1 Booster Car Seat on safety1st.com Safety 1st Disney Baby MagicSquad 3-in-1 Harness Harness-to-booster 30–100 lb – Not published 65 lb 100 lb – Not published – Not published 10 yr Certified – No current price Safety 1st Disney Baby Finale 2-in-1 Booster Car Seat (BC209) Harness-to-booster 40–100 lb – Not published 65 lb 100 lb – Not published – Not published 10 yr Certified $79.99 for the Safety 1st Disney Baby Finale 2-in-1 Booster Car Seat (BC209) on safety1st.com Safety 1st Disney Baby Finale 2-in-1 Booster Car Seat (BC220) Harness-to-booster 40–100 lb – Not published 65 lb 100 lb – Not published – Not published 10 yr Certified $87.99 for the Safety 1st Disney Baby Finale 2-in-1 Booster Car Seat (BC220) on safety1st.com Evenflo Maestro Sport Harness-to-booster 30–100 lb – Not published 50 lb 100 lb 19 in 9.6 lb – Not published Certified $99.99 for the Evenflo Maestro Sport Booster Car Seat on Amazon Evenflo Chase LX Harnessed Harness-to-booster 30–100 lb – Not published 40 lb 100 lb 21.9 in 9.14 lb (lightest in this table) – Not published Certified $79.99 for the Evenflo Chase LX Harnessed Booster Car Seat on Amazon Evenflo Chase Plus 2-In-1 Harness-to-booster 30–100 lb – Not published 40 lb 100 lb 21.9 in 9.5 lb – Not published Certified $64.99 for the Evenflo Chase Plus 2-In-1 Booster Car Seat on evenflo.com Baby Jogger city turn Rotating convertible 4–65 lb 50 lb 65 lb – Not published 19 in – Not published 10 yr Certified $579.99 for the Baby Jogger city turn Rotating Convertible Car Seat on Amazon Britax Galaxy360 Slim Rotating convertible 5–65 lb 50 lb 65 lb – Not published 17 in – Not published 10 yr No $429.99 for the Britax Galaxy360 Slim Rotating Convertible Car Seat on Amazon Britax Poplar Convertible 5–65 lb 50 lb 65 lb – Not published 17 in 27.2 lb 10 yr Certified $329.99 for the Britax Poplar Convertible Car Seat on Amazon Britax Poplar S Convertible 5–65 lb 50 lb 65 lb – Not published 17 in 28 lb 10 yr Certified $399.99 for the Britax Poplar S Convertible Car Seat on Amazon Chicco Fit360 ClearTex Rotating convertible 4–65 lb 40 lb 65 lb – Not published 18.25 in 33.8 lb 8 yr Certified $439.99 for the Chicco Fit360 ClearTex Rotating Convertible Car Seat on Amazon Chicco Fit360 SE ClearTex Rotating convertible 12–65 lb 40 lb 65 lb – Not published 18.25 in 33.8 lb 8 yr Certified $399.99 for the Chicco Fit360 SE ClearTex Rotating Convertible Car Seat on Amazon Chicco Fit360 Zip ClearTex Rotating convertible 4–65 lb 40 lb 65 lb – Not published 18.25 in 31.25 lb 8 yr Certified $469.99 for the Chicco Fit360 Zip ClearTex Rotating Convertible Car Seat on Amazon Clek Foonf Convertible 14–65 lb 50 lb 65 lb – Not published 16.9 in 38 lb 9 yr Certified – No current price Clek Fllo Convertible 14–65 lb 50 lb 65 lb – Not published 16.9 in 25 lb 9 yr Certified – No current price Cosco Entrada Convertible 5–65 lb 40 lb 65 lb – Not published – Not published – Not published 10 yr Certified $89.98 for the Cosco Entrada Convertible Car Seat on coscokids.com Evenflo Revolve360 Slim 2-in-1 Rotating convertible 4–65 lb 50 lb 65 lb – Not published 16.9 in 28.2 lb – Not published Certified $399.99 for the Evenflo Revolve360 Slim 2-in-1 Rotating Car Seat on Amazon Evenflo Revolve360 Slim 2-in-1 Rotating Car Seat with SensorSafe Rotating convertible 4–65 lb 50 lb 65 lb – Not published 16.9 in 28.2 lb 10 yr Certified – No current price Graco EasyTurn 360 2-in-1 Rotating convertible 4–65 lb 40 lb 65 lb – Not published 17 in 26 lb 10 yr – Not stated $349.99 for the Graco EasyTurn 360 2-in-1 Rotating Convertible Car Seat on Amazon Graco Extend2Fit Convertible 4–65 lb 50 lb 65 lb – Not published 19.5 in 19 lb 10 yr – Not stated $239.99 for the Graco Extend2Fit Convertible Car Seat on Amazon Graco Contender Slim Convertible 5–65 lb 40 lb 65 lb – Not published 18.9 in 16 lb 7 yr Certified $189.99 for the Graco Contender Slim Convertible Car Seat on Amazon Nuna RAVA next Convertible 5–65 lb 50 lb 65 lb – Not published – Not published 26.5 lb 10 yr Certified $580.00 for the Nuna RAVA next convertible car seat on nunababy.com Nuna RAVA Convertible 5–65 lb 50 lb 65 lb – Not published 19 in 27.9 lb 10 yr Certified – No current price Nuna REVV maxx Rotating convertible 5–65 lb 40 lb 65 lb – Not published – Not published 30.6 lb 10 yr No $800.00 for the Nuna REVV maxx rotating convertible car seat on nunababy.com Peg Perego Primo Viaggio Convertible Kinetic Convertible 5–65 lb 45 lb 65 lb – Not published – Not published 24.4 lb 10 yr Certified $349.99 for the Peg Perego Primo Viaggio Convertible Kinetic on Amazon Safety 1st Ellaris Convertible 5–65 lb 40 lb 65 lb – Not published – Not published – Not published 10 yr Certified $99.99 for the Safety 1st Ellaris Convertible Car Seat on Amazon Safety 1st Disney Baby Ellaris Convertible 5–65 lb 40 lb 65 lb – Not published – Not published – Not published 10 yr Certified $129.98 for the Safety 1st Disney Baby Ellaris Convertible Car Seat on Amazon Safety 1st Disney Baby Jive 2-in-1 Convertible 5–65 lb 40 lb 65 lb – Not published – Not published – Not published 10 yr Certified $129.99 for the Safety 1st Disney Baby Jive 2-in-1 Convertible Car Seat on safety1st.com UPPAbaby Rove Convertible 14–65 lb 50 lb 65 lb – Not published 18.8 in 25.2 lb 10 yr Certified $499.99 for the UPPAbaby Rove convertible car seat on uppababy.com Cosco Scenera Extend Convertible 5–50 lb 40 lb 50 lb – Not published – Not published – Not published 8 yr Certified $59.00 for the Cosco Scenera Extend Convertible Car Seat on coscokids.com Maxi-Cosi Romi 2-in-1 Convertible 5–50 lb 40 lb 50 lb – Not published – Not published 9.2 lb 10 yr Certified $149.99 for the Maxi-Cosi Romi 2-in-1 Convertible Car Seat on Amazon Safety 1st Smooth Ride Convertible 5–50 lb 40 lb 50 lb – Not published – Not published – Not published 10 yr Certified $94.99 for the Safety 1st Smooth Ride Convertible Car Seat on safety1st.com Safety 1st Disney Baby Scenera Extend Convertible 5–50 lb 40 lb 50 lb – Not published – Not published – Not published 10 yr Certified $89.99 for the Safety 1st Disney Baby Scenera Extend Convertible Car Seat on safety1st.com Evenflo Tribute LX Convertible 5–40 lb 40 lb 40 lb – Not published 17 in 9.29 lb – Not published Certified $99.99 for the Evenflo Tribute LX Convertible Car Seat on evenflo.com Nuna REVV Rotating convertible 5–40 lb 30 lb 40 lb – Not published 18.5 in 29.7 lb 10 yr No – No current price 
