| Britax Highpoint | Nuna Aace | UPPAbaby ALTA | |
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| BASICS | |||
| Carseat Name | Highpoint | Nuna Aace | ALTA |
| CarseatBlog Recommended Seat | |||
| IIHS Best Bet Booster | |||
| Available at | Buy at Amazon.com | Buy at Nordstrom.com | Amazon.com |
| Available in Canada | |||
| BPB Weight Limits | 40-120 lbs. | 30-110 lbs. | 40-100 lbs. |
| BPB Height Limits | 38-63 in. | 38-60 in. | 38-57 in. |
| Age Limits | n/a | 4+ years | No min. listed in manual, but UPPAbaby recommends to CarseatBlog that children be at least 5-6 years old and mature enough to stay properly seated in a booster |
| Requires vehicle head support behind booster | |||
| Type of Energy-Absorbing Foam | EPP | EPS foam | EPP |
| BELT GUIDE INFO | |||
| Carseat Name | Highpoint | Nuna Aace | ALTA |
| How Many Belt Guide Positions? | 10 | 9 | 7 |
| Lowest Belt Guide Measurement | 15.75 in. | 13.5 in. | 14.75 in. |
| Highest Belt Guide Measurement | 23 in. | 21 in. | 22 in. |
| SEAT INFO | |||
| Carseat Name | Highpoint | Nuna Aace | ALTA |
| Booster Modes | Highback only | Highback/backless | Highback |
| Inside Shoulder Width | 14 in. | 15 in. | 13.5 in. |
| Inside Hip Width | 11.5 in. | 12 in. | 13 in. |
| Inside Knee Width | 13.75 in. | ||
| Inside Seat Depth | 14 in. | 14 in. | 14 in. |
| Inside Seat Height | 31.75 in. | 29.5 in. | |
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| External Widest Point | 20.75 in. | 21.5 in. | 18.5 in. |
| External Width at Buckle | 15 in. | 17 in. | |
| Seat Weight | 12.1 lbs. | 15.5 lbs. | 16 lbs. |
| INSTALL INFO | |||
| Carseat Name | Highpoint | Nuna Aace | ALTA |
| Number of Recline Positions | 1 | 8 | |
| Can Be Installed with LATCH Connectors and/or Tether? | |||
| Type of LATCH Connectors | Push-on | Rigid | Rigid |
| Non-standard LATCH Policy (can “borrow” LATCH anchors) | Permitted only in designated LATCH positions | Permitted only in designated LATCH positions | No |
| Inflatable Seat Belt Policy | Not allowed | Not allowed | Refer to vehicle owner’s manual |
| MISC. | |||
| Carseat Name | Highpoint | Nuna Aace | ALTA |
| Cover Removal/Installation | Easy | Easy | Easy; base cover zips on/off |
| Cover Washing Instructions | Hand wash in cold water and line dry. | Machine wash on delicate cycle and hang to dry. | Machine wash and hang to dry |
| Expiration | 10 years | 10 years | 10 years |
| Crash Guidelines | Follow NHTSA crash guidelines | Replace after any crash | Replace after any crash |
| FAA Certified? | |||
| Comments | Cup holders are optional if space is needed | UPPAbaby provides a LIMITED LIFETIME WARRANTY on all their carseats and boosters if you register them within 3 months of purchase | |
| O Canada | |||
| Manufacturing Country | China | China | |
| CarseatBlog.com Review | Highpoint Review | ALTA Review | |
| Available At | Buy at Amazon.com | Buy at Nordstrom.com | Amazon.com |
| Price or MSRP | $149.99 | $249.95 | $179 |