Harmony Defender 360° MAX 3-in-1 Deluxe vs Nuna LUMN
Side-by-side specs from each maker.
Only the differences are shown.
| Harmony Defender 360° MAX 3-in-1 Deluxe | Nuna LUMN | |
|---|---|---|
| Type | Harness-to-booster | Harness-to-booster |
| Forward-facing weight | 26.5–65 lb | 30–65 lb |
| Forward-facing height | 27–57 in | 34–49 in |
| Booster weight | 40–120 lb | 40–110 lb |
| Booster height | 34–57 in | 43–57 in |
| Seat weight | 18 lbLightest | 26.2 lb |
| Width | Not listed | 18.25 in |
| Head rule | Harness mode: Child's ears MUST BE BELOW top of the headrest. | Not listed |
| Newborn insert | Infant insert cushion: 'Harmony recommends that you use the infant insert cushion until your child has reached a minimum of 35 pounds (15.8 kg).' | Body insert: 'The body insert MUST be used for a child up to 40lbs (18 kg).' Seat insert used only from 30 lbs up to 65 lbs in harness mode; remove in booster mode. |
| Installation | LATCH (harness mode, not over 50 lbs), vehicle lap-and-shoulder belt, vehicle lap-only belt (harness mode), top tether (harness mode) | lower anchor belt and tether (harness mode), vehicle belt and tether (harness mode), vehicle belt without lower anchors (booster mode) |
| Load leg | No | No |
| Anti-rebound bar | No | No |
| Rotates | No | No |
| Harness heights | 9 | 10 |
| Recline positions | Not listed | 9 |
| Aircraft label | Certified for aircraft, per the maker | Certified for aircraft, per the maker |
| No added flame retardants | Not listed | Yes |
| Expires after | 10 years | 10 years |
Harmony Defender 360° MAX 3-in-1 Deluxe
- Manual lists harness use 22 - 65 pounds and booster use 40 - 120 pounds
- Manual lists aircraft certification with the harness
- Manual lists a one-hand headrest button
- Manual says forward-facing only; no rear-facing limits
Nuna LUMN
- Maker lists 10 headrest positions and 9 recline positions (with top tether)
- Maker states 'Fire-retardant free'
- Maker lists FAA certification in harness mode
- Not certified for aircraft use in booster mode per manual
Ask the meadow
Defender 360° MAX 3-in-1 Deluxe or LUMN?
Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.
Which one will my child use longer, the Defender 360° MAX 3-in-1 Deluxe or the LUMN?
The Harmony Defender 360° MAX 3-in-1 Deluxe: it goes forward-facing with a harness, then booster, up to 120 lb. The LUMN goes forward-facing with a harness, then booster, up to 110 lb. The Defender 360° MAX 3-in-1 Deluxe expires after 10 years.
Which is easier to travel with?
Defender 360° MAX 3-in-1 Deluxe: certified for planes, 18 lb. LUMN: certified for planes, 26.2 lb.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.